Patton electronics IPLink Series User manual

IPLink Series
IPLink Software Release 3.20
Software Configuration Guide
Sales Office: [phone]
Technical Support: [phone]
E-mail: [email protected]
URL: www.patton.com
Document Number: 13220U8-001 Rev. A
Part Number: 07M2800-SCG
Revised: May 3, 2006

Patton Electronics Company, Inc.
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
Tel: [phone]
Fax: [phone]
Support: [phone]
Web: www.patton.com
E-mail: [email protected]
Copyright © 2006, Patton Electronics Company. All rights reserved.
The information in this document is subject to change without notice. Patton Elec-
tronics assumes no liability for errors that may appear in this document.
Trademark Statement
The term IPLink is a trademark of Patton Electronics Company. All other trademarks presented in this doc-
ument are the property of their respective owners.
Notices
The information contained in this document is not designed or intended for use as critical components in
human life-support systems, equipment used in hazardous environments, or nuclear control systems. Patton
Electronics Company disclaims any express or implied warranty of fitness for such uses.
The information in this document is subject to change without notice. Patton Electronics assumes no liabil-
ity for errors that may appear in this document.
Any software described in this document is furnished under license and may be used or copied only in accor-
dance with the terms of such license.
Released Build Numbers
This version of the Software Configuration Guide is based on IPLink 3.20 Build Series 2006-02-02 . The
following are the applicable released build numbers:
Supported Platforms
IPLink 2805 R3.20
Build 2006-03-03
IPLink 2802/2821/2835 R3.20
Build 2006-0-03
IPLink Model 2805
(Rev. B)
IPLink 2802/2821/2835
(Rev. D)

3
Summary Table of Contents
1System overview .............................................................................................................................................24
2Configuration concepts ..................................................................................................................................29
3Command line interface (CLI) .......................................................................................................................33
4Accessing the CLI...........................................................................................................................................38
5Establishing basic IP connectivity..................................................................................................................50
6System image handling...................................................................................................................................57
7Configuration file handling............................................................................................................................71
8Basic system management ..............................................................................................................................87
9RADIUS Client Configuration.......................................................................................................................99
10 IP context overview ......................................................................................................................................110
11 IP interface configuration ............................................................................................................................117
12 NAT/NAPT configuration............................................................................................................................128
13 Ethernet port configuration .........................................................................................................................137
14 Link scheduler configuration .......................................................................................................................148
15 Serial port configuration ..............................................................................................................................167
16 T1/E1 port configuration.............................................................................................................................185
17 Basic IP routing configuration.....................................................................................................................195
18 RIP configuration ........................................................................................................................................201
19 Access control list configuration...................................................................................................................211
20 SNMP configuration ....................................................................................................................................225
21 SNTP client configuration ...........................................................................................................................240
22 DHCP configuration....................................................................................................................................251
23 DNS configuration.......................................................................................................................................261
24 DynDNS configuration................................................................................................................................265
25 PPP configuration........................................................................................................................................270
26 VPN configuration .......................................................................................................................................287
ATerms and definitions .................................................................................................................................304
BMode summary ...........................................................................................................................................309
CCommand summary ....................................................................................................................................313
DInternetworking terms & acronyms ............................................................................................................325
EUsed IP ports in the IPLink software ..........................................................................................................330

4
Table of Contents
Summary Table of Contents ............................................................................................................................3
Table of Contents ............................................................................................................................................4
List of Figures ................................................................................................................................................16
List of Tables .................................................................................................................................................17
About this guide ............................................................................................................................................18
Audience............................................................................................................................................................... 18
How to read this guide ......................................................................................................................................... 18
Structure............................................................................................................................................................... 18
Precautions........................................................................................................................................................... 20
Typographical conventions used in this document................................................................................................ 21
General conventions .......................................................................................................................................21
Mouse conventions .........................................................................................................................................22
Service and support ...............................................................................................................................................22
Patton support headquarters in the USA .........................................................................................................22
Alternate Patton support for Europe, Middle East, and Africa (EMEA) ..........................................................22
Warranty Service and Returned Merchandise Authorizations (RMAs)...................................................................23
Warranty coverage ..........................................................................................................................................23
Returns for credit ......................................................................................................................................23
Return for credit policy .............................................................................................................................23
RMA numbers ................................................................................................................................................23
Shipping instructions ................................................................................................................................23
1System overview .............................................................................................................................................24
Introduction..........................................................................................................................................................25
IPLink hardware platforms ....................................................................................................................................26
IPLink software embedded software ......................................................................................................................26
IPLink Software management center tools.............................................................................................................27
2Configuration concepts ..................................................................................................................................29
Introduction..........................................................................................................................................................30
Contexts and Gateways .........................................................................................................................................31
Context ...........................................................................................................................................................31
Interfaces, Ports, and Bindings ..............................................................................................................................31
Interfaces ........................................................................................................................................................31
Ports and circuits ............................................................................................................................................31
Bindings .........................................................................................................................................................32
Profiles and Use commands...................................................................................................................................32
Profiles ............................................................................................................................................................32
Use Commands ..............................................................................................................................................32
3Command line interface (CLI) .......................................................................................................................33
Introduction..........................................................................................................................................................34

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IPLink Software Configuration Guide Table of Contents
Command modes..................................................................................................................................................34
CLI prompt ....................................................................................................................................................34
Navigating the CLI .........................................................................................................................................35
Initial mode ..............................................................................................................................................35
System changes .........................................................................................................................................35
Configuration ...........................................................................................................................................35
Changing Modes .......................................................................................................................................35
Command editing .................................................................................................................................................35
Command help ...............................................................................................................................................35
The No form ..................................................................................................................................................35
Command defaults—returning parameters to default values ...........................................................................36
Command completion ....................................................................................................................................36
Command history ...........................................................................................................................................36
Command Editing Shortcuts ..........................................................................................................................36
4Accessing the CLI...........................................................................................................................................38
Introduction..........................................................................................................................................................39
Accessing the IPLink software CLI task list............................................................................................................39
Accessing via the console port .........................................................................................................................40
Console port procedure .............................................................................................................................40
Accessing via a Telnet session ..........................................................................................................................41
Telnet Procedure .......................................................................................................................................41
Using an alternate TCP listening port for the Telnet server .............................................................................42
Disabling the Telnet server .............................................................................................................................42
Logging onto the IPLink software ...................................................................................................................42
Selecting a secure password .............................................................................................................................43
Password encryption .......................................................................................................................................43
Configure operators and administrators ..........................................................................................................44
Password encryption .................................................................................................................................44
Factory preset administrator account .........................................................................................................44
Creating an operator account ....................................................................................................................44
Creating an administrator account ............................................................................................................45
Displaying the CLI version .............................................................................................................................45
Displaying account information ......................................................................................................................46
Switching to another account ..........................................................................................................................46
Checking identity and connected users ...........................................................................................................47
Command index numbers ..............................................................................................................................47
Ending a Telnet or console port session ..........................................................................................................49
Hidden commands in .cfg configuration files ..................................................................................................49
5Establishing basic IP connectivity..................................................................................................................50
Introduction..........................................................................................................................................................51
IP context selection and basic interface configuration tasks....................................................................................51
Entering the IP context, creating IP interfaces and assigning an IP address .....................................................51
Defining IP Ethernet encapsulation and binding an IP interface to a physical port .........................................52

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IPLink Software Configuration Guide Table of Contents
Activating a physical port ................................................................................................................................52
Displaying IP interface information ................................................................................................................53
Deleting IP interfaces ......................................................................................................................................54
Examples ...............................................................................................................................................................55
Setting up an IP interface on an Ethernet port ................................................................................................55
6System image handling...................................................................................................................................57
Introduction..........................................................................................................................................................58
Memory regions in IPLink software.......................................................................................................................58
System image handling task list .............................................................................................................................60
Displaying system image information .............................................................................................................60
Copying system images from a network server to Flash memory .....................................................................61
Copying driver software from a network server to Flash memory ....................................................................62
Auto provisioning of firmware and configuration ..................................................................................................63
Boot procedure......................................................................................................................................................65
Bootloader.............................................................................................................................................................67
Start Bootloader ..............................................................................................................................................67
Start-up with factory configuration .................................................................................................................68
Load a new application image (IPLink software) via TFTP .............................................................................68
Load a new application image (IPLink software) via the serial link ..................................................................70
Factory configuration ............................................................................................................................................70
7Configuration file handling............................................................................................................................71
Introduction..........................................................................................................................................................72
Understanding configuration files ...................................................................................................................72
Factory configuration ............................................................................................................................................74
Configuration file handling task list.......................................................................................................................74
Copying configurations within the local memory ............................................................................................75
Replacing the startup configuration with a configuration from Flash memory ................................................76
Copying configurations to and from a remote storage location .......................................................................78
Replacing the startup configuration with a configuration downloaded from TFTP server ...............................79
Displaying configuration file information .......................................................................................................80
Modifying the running configuration at the CLI ............................................................................................80
Modifying the running configuration offline ...................................................................................................81
Deleting a specified configuration ...................................................................................................................83
Encrypted file download .................................................................................................................................83
Encrypted Configuration Download .........................................................................................................84
Use Cases ..................................................................................................................................................84
8Basic system management ..............................................................................................................................87
Introduction..........................................................................................................................................................88
Basic system management configuration task list ...................................................................................................88
Managing feature license keys .........................................................................................................................89
Setting system information .............................................................................................................................90
Setting the system banner ...............................................................................................................................91
Setting time and date ......................................................................................................................................92

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IPLink Software Configuration Guide Table of Contents
Display clock information ...............................................................................................................................92
Display time since last restart ..........................................................................................................................93
Configuring and starting the Web server .........................................................................................................93
Determining and defining the active CLI version ............................................................................................93
Restarting the system ......................................................................................................................................94
Displaying the system logs ..............................................................................................................................95
Controlling command execution .....................................................................................................................95
Timed execution of CLI command .................................................................................................................97
Displaying the checksum of a configuration ....................................................................................................97
Configuration of terminal sessions ..................................................................................................................97
9RADIUS Client Configuration.......................................................................................................................99
Introduction........................................................................................................................................................100
The AAA component ..........................................................................................................................................100
General AAA Configuration .........................................................................................................................101
RADIUS configuration .......................................................................................................................................103
Configuring RADIUS clients ........................................................................................................................104
Configuring RADIUS accounting .................................................................................................................105
Configuring the RADIUS server ...................................................................................................................107
Attributes in the RADIUS request message .............................................................................................107
Attributes in the RADIUS accept message ...............................................................................................108
Configuring the local database accounts ..............................................................................................................108
10 IP context overview ......................................................................................................................................110
Introduction........................................................................................................................................................111
IP context overview configuration task list...........................................................................................................111
Planning your IP configuration ...........................................................................................................................112
IP interface related information ....................................................................................................................112
Serial interface related information ................................................................................................................113
QoS related information ...............................................................................................................................113
Configuring Ethernet and serial ports..................................................................................................................113
Creating and configuring IP interfaces.................................................................................................................113
Configuring NAPT .............................................................................................................................................114
Configuring static IP routing...............................................................................................................................114
Configuring RIP..................................................................................................................................................114
Configuring access control lists............................................................................................................................115
Configuring quality of service (QoS) ...................................................................................................................115
11 IP interface configuration ............................................................................................................................117
Introduction........................................................................................................................................................118
Software IP interface configuration task list .........................................................................................................118
Creating an IP interface ................................................................................................................................118
Deleting an IP interface ................................................................................................................................119
Setting the IP address and netmask ...............................................................................................................120
Configuring a NAPT DMZ interface ............................................................................................................120
ICMP message processing .............................................................................................................................121

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IPLink Software Configuration Guide Table of Contents
ICMP redirect messages ................................................................................................................................121
Router advertisement broadcast message .......................................................................................................121
Defining the MTU and MSS of the interface ................................................................................................122
Configuring an interface as a point-to-point link ..........................................................................................123
Displaying IP interface information ..............................................................................................................123
Displaying dynamic ARP entries ...................................................................................................................124
Flushing dynamic ARP entries ......................................................................................................................124
Testing connections with the ping command ................................................................................................124
Traceroute ....................................................................................................................................................125
Debug ARP ..................................................................................................................................................125
Configuring the IGMP Proxy..............................................................................................................................126
Examples .............................................................................................................................................................127
Deleting an IP interface ................................................................................................................................127
12 NAT/NAPT configuration............................................................................................................................128
Introduction........................................................................................................................................................129
Dynamic NAPT ...........................................................................................................................................129
Static NAPT .................................................................................................................................................130
Dynamic NAT ..............................................................................................................................................131
Static NAT ...................................................................................................................................................131
NAPT traversal .............................................................................................................................................131
NAT/NAPT configuration task list .....................................................................................................................132
Creating a NAPT profile ...............................................................................................................................132
Configuring a NAPT DMZ host ............................................................................................................133
Defining NAPT port ranges ....................................................................................................................134
Preserving TCP/UDP port numbers in NAPT ........................................................................................134
Defining the UDP NAPT type ...............................................................................................................134
Activate NAT/NAPT ....................................................................................................................................135
Displaying NAT/NAPT configuration information ......................................................................................135
Configuring NAT static protocol entries .......................................................................................................136
13 Ethernet port configuration .........................................................................................................................137
Introduction........................................................................................................................................................138
Ethernet port configuration task list ....................................................................................................................138
Entering the Ethernet port configuration mode ............................................................................................139
Configuring medium for an Ethernet port ....................................................................................................139
Configuring Ethernet encapsulation type for an Ethernet port ......................................................................140
Binding an Ethernet port to an IP interface ..................................................................................................140
Multiple IP addresses on Ethernet ports ........................................................................................................141
Configuring a VLAN ....................................................................................................................................142
Configuring layer 2 CoS to service-class mapping for an Ethernet port .........................................................143
Adding a receive mapping table entry ......................................................................................................144
Adding a transmit mapping table entry ...................................................................................................145
Closing an Ethernet port ...............................................................................................................................145
Using the built-in Ethernet sniffer.......................................................................................................................146

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IPLink Software Configuration Guide Table of Contents
14 Link scheduler configuration .......................................................................................................................148
Introduction........................................................................................................................................................149
Applying scheduling at the bottleneck ...........................................................................................................149
Using traffic classes .......................................................................................................................................149
Introduction to Scheduling ...........................................................................................................................150
Priority ....................................................................................................................................................150
Weighted fair queuing (WFQ) ................................................................................................................150
Shaping ...................................................................................................................................................150
Burst tolerant shaping or wfq ..................................................................................................................151
Hierarchy ................................................................................................................................................151
Quick references..................................................................................................................................................152
Setting the modem rate .................................................................................................................................152
Command cross reference .............................................................................................................................153
Link scheduler configuration task list...................................................................................................................153
Defining the access control list profile ...........................................................................................................154
Packet classification .................................................................................................................................154
Creating an access control list ..................................................................................................................155
Creating a service policy profile .....................................................................................................................156
Specifying the handling of traffic-classes .......................................................................................................158
Defining fair queuing weight ...................................................................................................................158
Defining the bit-rate ...............................................................................................................................159
Defining absolute priority .......................................................................................................................159
Defining the maximum queue length ......................................................................................................159
Specifying the type-of-service (TOS) field ...............................................................................................159
Specifying the precedence field ................................................................................................................160
Specifying differentiated services codepoint (DSCP) marking .................................................................160
Specifying layer 2 marking ......................................................................................................................161
Defining random early detection .............................................................................................................162
Discarding Excess Load ...........................................................................................................................162
Quality of Service for routed RTP streams ....................................................................................................162
Devoting the service policy profile to an interface .........................................................................................164
Displaying link arbitration status ..................................................................................................................165
Displaying link scheduling profile information .............................................................................................165
Enable statistics gathering .............................................................................................................................165
15 Serial port configuration ..............................................................................................................................167
Introduction........................................................................................................................................................168
Serial port configuration task list .........................................................................................................................168
Disabling an interface ...................................................................................................................................169
Enabling an interface ....................................................................................................................................169
Configuring the serial encapsulation type ......................................................................................................170
Configuring the active clock edge .................................................................................................................171
Configuring the baudrate ..............................................................................................................................172
Enter Frame Relay mode ...............................................................................................................................173

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IPLink Software Configuration Guide Table of Contents
Configuring the LMI type ............................................................................................................................173
Configuring the keep-alive interval ...............................................................................................................174
Enabling fragmentation ................................................................................................................................174
Entering Frame Relay PVC configuration mode ...........................................................................................176
Configuring the PVC encapsulation type ......................................................................................................177
Binding the Frame Relay PVC to IP interface ...............................................................................................177
Enabling a Frame Relay PVC ........................................................................................................................179
Disabling a Frame Relay PVC .......................................................................................................................179
Debugging Frame Relay ................................................................................................................................180
Displaying serial port information .................................................................................................................181
Displaying Frame Relay information .............................................................................................................181
Integrated service access ................................................................................................................................182
16 T1/E1 port configuration.............................................................................................................................185
Introduction........................................................................................................................................................186
T1/E1 port configuration task list........................................................................................................................186
Enable/Disable T1/E1 port ...........................................................................................................................186
Configuring T1/E1 port-type .......................................................................................................................187
Configuring T1/E1 clock-mode ....................................................................................................................187
Configuring T1/E1 line-code ........................................................................................................................187
Configuring T1/E1 framing ..........................................................................................................................187
Configuring T1/E1 line-build-out (T1 only) ................................................................................................188
Configuring T1/E1 used-connector (E1 only) ...............................................................................................188
Configuring T1/E1 application mode ...........................................................................................................188
Configuring T1/E1 LOS threshold ...............................................................................................................189
Configuring T1 Loopback detection .............................................................................................................189
Configuring T1/E1 encapsulation .................................................................................................................190
Create a Channel-Group ...............................................................................................................................190
Configuring Channel-Group Timeslots ........................................................................................................191
Configuring Channel-Group Encapsulation .................................................................................................191
Entering HDLC Configuration Mode ..........................................................................................................191
Configuring HDLC CRC-Type ...................................................................................................................192
Configuring HDLC Encapsulation ...............................................................................................................192
T1/E1 Configuration Examples ....................................................................................................................192
Example 1: Frame Relay without a channel-group ..................................................................................193
Example 2: Framerelay with a channel-group ..........................................................................................194
Example 3: PPP without a channel-group ...............................................................................................194
Example 4: PPP with a channel-group ....................................................................................................194
17 Basic IP routing configuration.....................................................................................................................195
Introduction........................................................................................................................................................196
Routing tables ...............................................................................................................................................196
Static routing ................................................................................................................................................196
Basic IP routing configuration task list ................................................................................................................196
Configuring static IP routes ..........................................................................................................................196

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IPLink Software Configuration Guide Table of Contents
Deleting static IP routes ................................................................................................................................197
Displaying IP route information ...................................................................................................................198
Examples .............................................................................................................................................................199
Basic static IP routing example ......................................................................................................................199
Changing the default UDP port range for RTP and RTCP.................................................................................200
18 RIP configuration ........................................................................................................................................201
Introduction........................................................................................................................................................202
Routing protocol .................................................................................................................................................202
RIP configuration task list ...................................................................................................................................203
Enabling send RIP ........................................................................................................................................203
Enabling an interface to receive RIP ..............................................................................................................204
Specifying the send RIP version ....................................................................................................................204
Specifying the receive RIP version .................................................................................................................205
Enabling RIP learning ...................................................................................................................................205
Enabling an interface to receive RIP ..............................................................................................................206
Enabling RIP announcing .............................................................................................................................206
Enabling RIP auto summarization ................................................................................................................207
Specifying the default route metric ................................................................................................................207
Enabling RIP split-horizon processing ..........................................................................................................208
Enabling the poison reverse algorithm ...........................................................................................................208
Enabling holding down aged routes ..............................................................................................................209
Displaying RIP configuration of an IP interface ............................................................................................209
Displaying global RIP information ...............................................................................................................210
19 Access control list configuration...................................................................................................................211
Introduction........................................................................................................................................................212
About access control lists .....................................................................................................................................212
What access lists do .......................................................................................................................................212
Why you should configure access lists ...........................................................................................................212
When to configure access lists .......................................................................................................................213
Features of access control lists .......................................................................................................................213
Access control list configuration task list..............................................................................................................214
Mapping out the goals of the access control list .............................................................................................214
Creating an access control list profile and enter configuration mode .............................................................215
Adding a filter rule to the current access control list profile ...........................................................................215
Adding an ICMP filter rule to the current access control list profile ..............................................................217
Adding a TCP, UDP or SCTP filter rule to the current access control list profile .........................................219
Binding and unbinding an access control list profile to an IP interface ..........................................................221
Displaying an access control list profile .........................................................................................................222
Debugging an access control list profile .........................................................................................................222
Examples .............................................................................................................................................................224
Denying a specific subnet ..............................................................................................................................224
20 SNMP configuration ....................................................................................................................................225
Introduction........................................................................................................................................................226

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IPLink Software Configuration Guide Table of Contents
Simple Network Management Protocol (SNMP) ................................................................................................226
SNMP basic components ..............................................................................................................................226
SNMP basic commands ................................................................................................................................226
SNMP management information base (MIB) ...............................................................................................227
Network management framework .................................................................................................................227
Identification of the IPLink devices via SNMP....................................................................................................228
SNMP tools.........................................................................................................................................................228
SNMP configuration task list ..............................................................................................................................228
Setting basic system information .........................................................................................................................229
Setting access community information ................................................................................................................231
Setting allowed host information.........................................................................................................................232
Specifying the default SNMP trap target .............................................................................................................232
Displaying SNMP related information ................................................................................................................233
Using the AdventNet SNMP utilities ..................................................................................................................234
Using the MibBrowser ..................................................................................................................................234
Using the TrapViewer ...................................................................................................................................235
Standard SNMP version 1 traps ..........................................................................................................................237
SNMP interface traps ..........................................................................................................................................239
21 SNTP client configuration ...........................................................................................................................240
Introduction........................................................................................................................................................241
SNTP client configuration task list......................................................................................................................241
Selecting SNTP time servers .........................................................................................................................242
Defining SNTP client operating mode ..........................................................................................................242
Defining SNTP local UDP port ...................................................................................................................243
Enabling and disabling the SNTP client .......................................................................................................244
Defining SNTP client poll interval ...............................................................................................................244
Defining SNTP client constant offset to GMT .............................................................................................244
Defining the SNTP client anycast address .....................................................................................................245
Enabling and disabling local clock offset compensation .................................................................................246
Showing SNTP client related information ....................................................................................................247
Debugging SNTP client operation ................................................................................................................247
Recommended public SNTP time servers............................................................................................................248
NIST Internet time service ............................................................................................................................248
Other public NTP primary (stratum 1) time servers .....................................................................................249
Additional information on NTP and a list of other NTP servers ...................................................................250
Recommended RFC .....................................................................................................................................250
22 DHCP configuration....................................................................................................................................251
Introduction........................................................................................................................................................252
DHCP-client configuration tasks ........................................................................................................................253
Enable DHCP-client on an IP interface ........................................................................................................253
Release or renew a DHCP lease manually (advanced) ...................................................................................255
Get debug output from DHCP-client ...........................................................................................................255
DHCP-server configuration tasks ........................................................................................................................256

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IPLink Software Configuration Guide Table of Contents
Configure DHCP-server profiles ...................................................................................................................256
Use DHCP-server profiles and enable the DHCP-server ...............................................................................258
Check DHCP-server configuration and status ..............................................................................................259
Get debug output from the DHCP-server .....................................................................................................259
23 DNS configuration.......................................................................................................................................261
Introduction........................................................................................................................................................262
DNS configuration task list .................................................................................................................................262
Enabling the DNS resolver ...........................................................................................................................262
Enabling the DNS relay ................................................................................................................................263
24 DynDNS configuration................................................................................................................................265
Introduction........................................................................................................................................................266
DynDNS configuration task list ..........................................................................................................................266
Creating a DynDNS account ........................................................................................................................266
Configuring the DNS resolver ......................................................................................................................266
Configuring basic DynDNS settings .............................................................................................................267
Configuring advanced DynDNS settings (optional) ......................................................................................267
Defining a mail exchanger for your hostname .........................................................................................267
Troubleshooting ...........................................................................................................................................268
25 PPP configuration........................................................................................................................................270
Introduction........................................................................................................................................................271
PPP configuration task list...................................................................................................................................272
Creating an IP interface for PPP ...................................................................................................................272
Disable interface IP address auto-configuration from PPP ............................................................................274
Creating a PPP subscriber .............................................................................................................................274
Trigger forced reconnect of PPP sessions using a timer .................................................................................275
Disable interface IP address auto-configuration from PPP ............................................................................276
Configuring a PPPoE session ........................................................................................................................276
Configuring a serial port for PPP ..................................................................................................................278
Creating a PPP profile ...................................................................................................................................279
Displaying PPP configuration information ...................................................................................................280
Debugging PPP ............................................................................................................................................281
Sample configurations .........................................................................................................................................285
PPP over Ethernet (PPPoE) ..........................................................................................................................285
Without authentication, encapsulation multi, with NAPT ......................................................................285
With authentication, encapsulation PPPoE .............................................................................................285
PPP over serial link .......................................................................................................................................286
Without authentication, numbered interface ...........................................................................................286
With authentication, unnumbered interface ............................................................................................286
26 VPN configuration .......................................................................................................................................287
Introduction........................................................................................................................................................288
Authentication ..............................................................................................................................................288
Encryption ....................................................................................................................................................288

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IPLink Software Configuration Guide Table of Contents
Transport and tunnel modes .........................................................................................................................289
Key management ..........................................................................................................................................289
VPN configuration task list .................................................................................................................................289
Creating an IPsec transformation profile .......................................................................................................289
Creating an IPsec policy profile .....................................................................................................................290
Creating/modifying an outgoing ACL profile for IPsec .................................................................................292
Configuration of an IP interface and the IP router for IPsec .........................................................................293
Displaying IPsec configuration information ..................................................................................................293
Debugging IPsec ...........................................................................................................................................294
Key Management (IKE) ......................................................................................................................................295
Main differences between manual & IKE IPSEC configurations .............................................................295
Creating an IPSEC transform profile ......................................................................................................296
Creating an ISAKMP transform profile ...................................................................................................296
Creating an ISAKMP IPSEC policy profile .............................................................................................296
Creating/modifying an outgoing ACL profile for IPSEC .........................................................................298
Configuration of an IP interface and the IP router for IPSEC .................................................................298
Policy matching ......................................................................................................................................298
Sample configuration snippet ..................................................................................................................298
Troubleshooting ...........................................................................................................................................299
Using an alternate source IP address for specific destinations ...................................................................299
Sample configurations .........................................................................................................................................300
IPsec tunnel, DES encryption .......................................................................................................................300
IPLink configuration ...............................................................................................................................300
Cisco router configuration ......................................................................................................................301
IPsec tunnel, AES encryption at 256 bit key length, AH authentication with HMAC-SHA1-96 ..................301
IPLink configuration ...............................................................................................................................301
Cisco router configuration ......................................................................................................................302
IPsec tunnel, 3DES encryption at 192 bit key length, ESP authentication with HMAC-MD5-96 ................302
IPLink configuration ...............................................................................................................................302
Cisco router configuration ......................................................................................................................302
ATerms and definitions .................................................................................................................................304
Introduction........................................................................................................................................................305
IPLink software architecture terms and definitions ..............................................................................................305
BMode summary ...........................................................................................................................................309
Introduction........................................................................................................................................................310
CCommand summary ....................................................................................................................................313
Introduction........................................................................................................................................................314
Summary.............................................................................................................................................................315
operator_exec ................................................................................................................................................315
administrator_exec ........................................................................................................................................315
configure .......................................................................................................................................................317
radius-client ..................................................................................................................................................318
profile_acl .....................................................................................................................................................318

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IPLink Software Configuration Guide Table of Contents
profile_service-policy ....................................................................................................................................319
profile_napt ..................................................................................................................................................319
profile_ppp ...................................................................................................................................................319
profile-ipsec-transform ..................................................................................................................................320
ipsec-manual-policy ......................................................................................................................................320
profile_dhcp-server .......................................................................................................................................320
profile_authentication ...................................................................................................................................321
profile_provisioning ......................................................................................................................................321
context_ip .....................................................................................................................................................321
interface ........................................................................................................................................................321
dyndns ..........................................................................................................................................................322
subscriber_ppp ..............................................................................................................................................322
port_ethernet ................................................................................................................................................322
pppoe ............................................................................................................................................................322
vlan ...............................................................................................................................................................323
port_serial .....................................................................................................................................................323
framerelay .....................................................................................................................................................323
Other ..................................................................................................................................................................324
Show help .....................................................................................................................................................324
Show command history ................................................................................................................................324
Show RedBoot version ..................................................................................................................................324
Restart system ...............................................................................................................................................324
Check network connection to remote system ................................................................................................324
DInternetworking terms & acronyms ............................................................................................................325
Abbreviations ......................................................................................................................................................326
EUsed IP ports in the IPLink software ..........................................................................................................330
Used IP ports in the IPLink software...................................................................................................................331

16
List of Figures
1 System overview with a Management Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2 IPLink system model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3 IPLink Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4 Configuration concept overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5 Setup for initial configuration via the console port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6 Setup for initial configuration via an Ethernet port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7 Login display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8 Relation between IP Interface lan and Ethernet port 0 on slot 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9 IPLink memory regions logically defined in IPLink software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
10 Boot procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
11 Sample configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
12 Local memory regions in IPLink software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
13 Remote memory regions for IPLink software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
14 System banner with message to operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
15 Authentication procedure with a RADIUS server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
16 How to use AAA methods and AAA profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
17 IP context and related elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
18 Dynamic NAPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
19 Static NAPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
20 Dynamic NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
21 Static NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
22 Binding of an Ethernet port to an IP interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
23 Packet routing in IPLink software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
24 Example of Hierarchical Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
25 Elements of link scheduler configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
26 Scenario with Web server regarded as a single source host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
27 Structure of a Service-Policy Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
28 Using a Service Policy Profile on an IP Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
29 IP interface wan is bound to PVC 1 on port serial 0 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
30 Typical Integrated Service Access Scenario with dedicated PVCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
31 IP Context with logical IP interfaces bound to Ethernet port, serial port PVC 1 and PVC 2 . . . . . . . . . . . . . 183
32 Internetwork with three routers and four networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
33 Using traffic filters to prevent traffic from being routed to a network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
34 Deny a specific subnet on an interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
35 AdventNet MibBrowser displaying some of the System Group objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
36 AdventNet MibBrowser Settings Button on the Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
37 AdventNet TrapViewer displaying received traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
38 AdventNet Trap Details window of TrapViewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
39 DHCP-client and DHCP-server on the IPLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
40 DNS relay diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
41 PPP configuration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
42 Mode overview, 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
43 Mode overview, 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
44 EBNF syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

17
List of Tables
1 General conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2 Mouse conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3 IPLink Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4 Command edit shortcuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5 Factory default IP address and network mask configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6 Permanent built-in interface slot and port mapping for IPLink Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
7 Command cross reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
8 TOS values and their meaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
9 Traffic control info (TCI) field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
10 Values defining detail of the queuing statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
11 IPLink Models and their Unique sysObjectID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
12 Details available in the Trap Details window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
13 Time servers operated by NIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

18
About this guide
The objective of this IPLink software Command Configuration Guide is to provide information concerning the
syntax and usage of the command set. For hardware configuration information, refer to the getting started
guide that came with your IPLink systems .
This section describes the following:
•Who should use this guide (see “Audience”)
•How this document is organized (see “Structure”)
•Typographical conventions and terms used in this guide (see “Typographical conventions used in this docu-
ment” on page 21)
Audience
This guide is intended for the following users:
•System administrators who are responsible for installing and configuring networking equipment and who
are familiar with the IPLink.
•System administrators with a basic networking background and experience, but who might not be familiar
with the IPLink.
•Operators
•Installers
•Maintenance technicians
How to read this guide
IPLink software is a complex and multifaceted operating system running on your IPLink device. Without the
necessary theoretical background you will not be able to understand and use all the features available. There-
fore, we recommend reading at least the chapters listed below to get a general idea about IPLink software and
the philosophy of contexts used for IP and circuit switching related configuration.
•Appendix A, "Terms and definitions" on page 304 contains the terms and their definitions that are used
throughout this IPLink software Software Configuration Guide
•Chapter 1, "System overview" on page 24 provides an overview of the main elements of an IPLink system.
•Chapter 10, "IP context overview" on page 110
•Chapter 27, "CS context overview" on page 327
Structure
This guide contains the following chapters and appendices:
•Chapter 1, "System overview" on page 24 provides an overview of the main elements of an IPLink system.
•Chapter 2, "Configuration concepts" on page 29 introduces basic IPLink software configuration concepts.

19
IPLink Software Configuration Guide About this guide
•Chapter 3, "Command line interface (CLI)" on page 33 gives an overview of the CLI and the basic features
that allow you to navigate the CLI and edit commands effectively.
•Chapter 4, "Accessing the CLI" on page 38 describes the procedures for entering IPLink software com-
mands via the command line interface (CLI), to obtain help, to change operator mode and to terminate a
session.
•Chapter 5, "Establishing basic IP connectivity" on page 50 explains how to establish network-based con-
nections to and from your IPLink by using IP interfaces and Ethernet ports.
•Chapter 6, "System image handling" on page 57 describes how to load and maintain system images and
driver software.
•Chapter 7, "Configuration file handling" on page 71 describes how to upload and download configuration
files from and to an IPLink devices.
•Chapter 8, "Basic system management" on page 87 describes parameters that report basic system informa-
tion to the operator or administrator, and their configuration.
•Chapter 9, "RADIUS Client Configuration" on page 99 provides an overview of the authentication, autho-
rization, and accounting (AAA) component in IPLink software and describes how to configure the
RADIUS client, a subpart of the AAA component.
•Chapter 10, "IP context overview" on page 110 outlines IPLink software Internet protocol (IP) context,
together with its related components.
•Chapter 11, "IP interface configuration" on page 117 provides a general overview of IPLink interfaces and
describes the tasks involved in their configuration.
•Chapter 12, "NAT/NAPT configuration" on page 128 provides a general overview of the network address
port translation and describes the tasks involved in its configuration.
•Chapter 13, "Ethernet port configuration" on page 137 provides an overview of Ethernet ports and
describes the tasks involved in their configuration through IPLink software.
•Chapter 14, "Link scheduler configuration" on page 148 describes how to use and configure IPLink soft-
ware quality of service (QoS) features.
•Chapter 15, "Serial port configuration" on page 167 provides an overview of the serial port and describes
the tasks involved in its configuration through IPLink software.
•Chapter 16, "T1/E1 port configuration" on page 185 provides an overview of the T1/E1 ports, their char-
acteristics and the tasks involved in the configuration.
•Chapter 17, "Basic IP routing configuration" on page 195 provides an overview of IP routing and describes
the tasks involved in configuring static IP routing in IPLink software.
•Chapter 18, "RIP configuration" on page 201 provides an overview of the routing information protocol
(RIP) and describes the tasks involved in configuring RIP features within IPLink software.
•Chapter 19, "Access control list configuration" on page 211 provides an overview of IP access control lists
and describes the tasks involved in their configuration through IPLink software.
•Chapter 20, "SNMP configuration" on page 225 provides overview information about the
simple network
management protocol (SNMP) and describes the tasks used to configure those of its features supported
by IPLink software.

20
IPLink Software Configuration Guide About this guide
•Chapter 21, "SNTP client configuration" on page 240 describes how to configure a simple network time pro-
tocol (SNTP) client.
•Chapter 22, "DHCP configuration" on page 251 provides an overview of the dynamic host configuration
control protocol (DHCP) and describes the tasks involved in its configuration.
•Chapter 23, "DNS configuration" on page 261 describes how to configure the domain name system
(DNS) component.
•Chapter 24, "DynDNS configuration" on page 265 describes configuring the dynamic DNS
(DynDNS) service.
•Chapter 25, "PPP configuration" on page 270 describes how to configure the point-to-point protocol over
different link layers.
•Chapter 26, "VPN configuration" on page 287 describes how to configure the VPN connections between
two IPLink devices or between an IPLink and a third-party device.
•Chapter 27, "CS context overview" on page 327 gives an overview of IPLink software circuit-switching (CS)
context and its associated components and describes the tasks involved in its configuration.
•Chapter 28, "CS interface configuration" on page 349 gives an overview of interfaces in the CS context and
describes the tasks involved its configuration.
•Appendix A, "Terms and definitions" on page 304 contains the terms and their definitions that are used
throughout this IPLink software Software Configuration Guide.
•Appendix B, "Mode summary" on page 309 illustrates the modes hierarchy.
•Appendix C, "Command summary" on page 313 is a command reference.
•Appendix D, "Internetworking terms & acronyms" on page 325 contains terms and definitions relating to
internetworking.
•Appendix E, "Used IP ports in the IPLink software" on page 330 describes the used IP ports and available
voice codecs in IPLink software.
Precautions
The following are used in this guide to help you become aware of potential problems:
Note A note presents additional information or interesting sidelights.
The alert symbol and IMPORTANT heading calls attention to
important information.
IMPORTANT