Avaya Media Gateway G250 Instruction Manual

Administration for the Avaya G250
and Avaya G350 Media Gateways
03-300436
Issue 3
February 2007

© 2007 Avaya Inc.
All Rights Reserved.
Notice
While reasonable efforts were made to ensure that the information in this
document was complete and accurate at the time of printing, Avaya Inc. can
assume no liability for any errors. Changes and corrections to the information
in this document may be incorporated in future releases.
For full legal page information, please see the complete document,
Avaya Legal Page for Software Documentation,
Document number 03-600758.
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or in connection with, subsequent modifications, additions or deletions to this
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Warranty
Avaya Inc. provides a limited warranty on this product. Refer to your sales
agreement to establish the terms of the limited warranty. In addition, Avaya’s
standard warranty language, as well as information regarding support for this
product, while under warranty, is available through the following Web site:
http://www.avaya.com/support
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Issue 3 February 2007 3
About this Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Downloading this book and updates from the Web . . . . . . . . . . . . . . . . . 21
Downloading this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Related resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Technical assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Within the US. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Sending us comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
G250 and G350 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
G250 and G350 support information . . . . . . . . . . . . . . . . . . . . . . . . . 26
G350 with media modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
G250 without media modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
G250 with WAN media module . . . . . . . . . . . . . . . . . . . . . . . . . . 26
G250 available models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 2: Configuration overview. . . . . . . . . . . . . . . . . . . . . 29
Defining the Console interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Defining the USB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Defining Other Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Configuration using CLI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Configuration using GUI applications . . . . . . . . . . . . . . . . . . . . . . . . 31
Saving configuration changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Firmware version control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Chapter 3: Accessing the Avaya G250/G350 Media Gateway
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Accessing the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Logging into the CLI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
CLI contexts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CLI help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Accessing CLI via local network . . . . . . . . . . . . . . . . . . . . . . . . . 37
Accessing CLI with a console device . . . . . . . . . . . . . . . . . . . . . . 37
Contents

Contents
4 Administration for the Avaya G250 and Avaya G350 Media Gateways
Accessing the CLI via modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Accessing the CLI via a USB modem . . . . . . . . . . . . . . . . . . . . . . 37
Accessing the CLI via a serial modem . . . . . . . . . . . . . . . . . . . . . . 38
G250/G350 serial modems . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Accessing the CLI via a modem connection to the S8300 . . . . . . . . . . . 39
Accessing Avaya IW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Access and run the Avaya IW using a laptop computer . . . . . . . . . . . . 40
Accessing GIW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Access the GIW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Accessing PIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Accessing Avaya Communication Manager . . . . . . . . . . . . . . . . . . . . . 43
Managing login permissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Security overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Managing users and passwords . . . . . . . . . . . . . . . . . . . . . . . . . 44
Privilege level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Configuring usernames . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
SSH protocol support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
RSA authentication process . . . . . . . . . . . . . . . . . . . . . . . . . 46
Password authentication process . . . . . . . . . . . . . . . . . . . . . . 46
SSH Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
SCP protocol support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
SCP Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
RADIUS authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Using RADIUS authentication. . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring RADIUS authentication . . . . . . . . . . . . . . . . . . . . . 48
Changing RADIUS parameters . . . . . . . . . . . . . . . . . . . . . . . . 49
Disabling RADIUS authentication. . . . . . . . . . . . . . . . . . . . . . . 49
Displaying RADIUS parameters. . . . . . . . . . . . . . . . . . . . . . . . 49
802.1x protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Authentication Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
802.1x modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Configuring 802.1x Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 51
Manual re-authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Optional 802.1x commands . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Displaying 802.1x parameters. . . . . . . . . . . . . . . . . . . . . . . . . 55
Special security features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Enabling and disabling recovery password . . . . . . . . . . . . . . . . . . . 57
Enabling and disabling telnet access . . . . . . . . . . . . . . . . . . . . . . 58
Managing gateway secrets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Configuring the Master Configuration Key. . . . . . . . . . . . . . . . . . 58

Contents
Issue 3 February 2007 5
Enabling SYN cookies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Configuring SYN cookies . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Maintaining SYN cookies . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Managed Security Services (MSS) . . . . . . . . . . . . . . . . . . . . . . . . 60
MSS reporting mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Configuring MSS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
DoS attack classifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Defining custom DoS classifications. . . . . . . . . . . . . . . . . . . . . 64
MSS CLI commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Chapter 4: Basic device configuration. . . . . . . . . . . . . . . . . . . 69
Defining an interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Configuring the Primary Management Interface (PMI) . . . . . . . . . . . . . . . 70
Setting the PMI of the G250/G350. . . . . . . . . . . . . . . . . . . . . . . . . 70
Defining the default gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Configuring the Media Gateway Controller (MGC) . . . . . . . . . . . . . . . . . 71
Survivability and migration options . . . . . . . . . . . . . . . . . . . . . . . 72
Configuring the MGC list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Setting the G250/G350’s MGC. . . . . . . . . . . . . . . . . . . . . . . . . 74
Determining results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Showing the current MGC list. . . . . . . . . . . . . . . . . . . . . . . . . 74
Removing one or more MGCs. . . . . . . . . . . . . . . . . . . . . . . . . 75
Setting reset times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Accessing the registered MGC . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Monitoring the ICC or LSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
DNS Resolver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
DNS Resolver Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Typical DNS resolver application – VPN failover . . . . . . . . . . . . . . . . 78
Configuring DNS Resolver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
DNS Resolver configuration example . . . . . . . . . . . . . . . . . . . . 81
Maintaining DNS Resolver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Showing DNS Resolver information . . . . . . . . . . . . . . . . . . . . . 82
Clearing DNS Resolver counters . . . . . . . . . . . . . . . . . . . . . . . 82
Viewing DNS Resolver logging . . . . . . . . . . . . . . . . . . . . . . . . 82
Viewing the status of the device . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Software and Firmware Management . . . . . . . . . . . . . . . . . . . . . . . . 84
File transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Software and firmware upgrades . . . . . . . . . . . . . . . . . . . . . . . . . 85
Managing the firmware banks. . . . . . . . . . . . . . . . . . . . . . . . . 85

Contents
6 Administration for the Avaya G250 and Avaya G350 Media Gateways
Upgrading software and firmware using FTP/TFTP . . . . . . . . . . . . . 86
Upgrading firmware using a USB mass storage device. . . . . . . . . . . 87
Backing up and restoring the G250/G350 using a USB mass storage device. 89
Backing up administration and configuration files using a USB mass
storage device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Restoring backed up configuration and administration files to a gateway
using a USB mass storage device. . . . . . . . . . . . . . . . . . . . . . 91
Replicating a G250/G350 using a USB mass storage device . . . . . . . . 91
Replacing/adding/upgrading media modules using a USB mass storage
device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Copying files to/from a USB mass storage device . . . . . . . . . . . . . . . 95
Copying files to a USB mass storage device . . . . . . . . . . . . . . . . 95
Copying files from a USB mass storage device . . . . . . . . . . . . . . . 95
Backing up and restoring configuration files . . . . . . . . . . . . . . . . . . 96
Backing up/restoring a configuration file using FTP/TFTP/SCP . . . . . . 97
Backing up/restoring a configuration file using a USB mass storage device 97
Listing the files on the Avaya G250/G350 Media Gateway . . . . . . . . . . . 97
Chapter 5: Configuring Standard Local Survivability (SLS) . . . . . . . 99
SLS service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Avaya phones supported in SLS . . . . . . . . . . . . . . . . . . . . . . . . . 100
Call processing in SLS mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Call processing not supported by SLS. . . . . . . . . . . . . . . . . . . . . . 102
Provisioning data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
PIM configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Entering SLS mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Unregistered state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Setup state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Registered state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Teardown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
SLS interaction with specific G250/G350 features . . . . . . . . . . . . . . . 106
Direct Inward Dialing in SLS mode . . . . . . . . . . . . . . . . . . . . . . 106
Multiple call appearances in SLS mode . . . . . . . . . . . . . . . . . . . 107
Hold in SLS mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Call Transfer in SLS mode . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Using Contact Closure in SLS mode . . . . . . . . . . . . . . . . . . . . . 110
IP Softphone shared administrative identity in SLS mode . . . . . . . . . 111
Emergency Transfer in SLS mode . . . . . . . . . . . . . . . . . . . . . . 112
SLS logging activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Example of CDR log entries and format . . . . . . . . . . . . . . . . . . . 113
Example of CDR log with contact closure . . . . . . . . . . . . . . . . . . 114

Contents
Issue 3 February 2007 7
Configuring SLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Configuring Communication Manager for SLS . . . . . . . . . . . . . . . 115
Using PIM to manage SLS administration on the gateway . . . . . . . . . . . 120
Enabling and disabling SLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Using the CLI to manually configure SLS administration on the gateway. . . 126
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Planning and preparing the SLS data set . . . . . . . . . . . . . . . . . . 126
Configuring the SLS data through the CLI . . . . . . . . . . . . . . . . . . 142
Administering Station parameters . . . . . . . . . . . . . . . . . . . . . . 151
Administering DS1 parameters . . . . . . . . . . . . . . . . . . . . . . . . 155
Administering BRI parameters . . . . . . . . . . . . . . . . . . . . . . . . 159
Administering Trunk-group parameters . . . . . . . . . . . . . . . . . . . 161
Administering signaling-group parameters . . . . . . . . . . . . . . . . . 169
Administering dial-pattern parameters. . . . . . . . . . . . . . . . . . . . 170
Administering incoming-routing parameters . . . . . . . . . . . . . . . . 172
Up-converting SLS data to Release 4.0 . . . . . . . . . . . . . . . . . . . 173
Down-converting Release 4.0 SLS data . . . . . . . . . . . . . . . . . . . 173
Chapter 6: Configuring Ethernet ports. . . . . . . . . . . . . . . . . . . 175
Ethernet ports on the G250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Ethernet ports on the G250 Media Gateway switch . . . . . . . . . . . . . . . 175
Ethernet ports on the G250 Media Gateway router . . . . . . . . . . . . . . . 175
Cables used for connecting devices to the fixed router . . . . . . . . . . . . 175
Ethernet ports on the G350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Ethernet ports on the G350 Media Gateway switch . . . . . . . . . . . . . . . 176
Ethernet ports on the G350 Media Gateway router . . . . . . . . . . . . . . . 176
Cables used for connecting devices to the fixed router . . . . . . . . . . . . 176
Configuring switch Ethernet ports . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Switch Ethernet port commands . . . . . . . . . . . . . . . . . . . . . . . . . 177
Configuring the WAN Ethernet port . . . . . . . . . . . . . . . . . . . . . . . . . 178
Configuring additional features on the WAN Ethernet port. . . . . . . . . . . 178
WAN Ethernet port traffic shaping . . . . . . . . . . . . . . . . . . . . . . . . 179
Backup interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
WAN Ethernet port commands . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Configuring DHCP client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
DHCP client applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
DHCP client configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Releasing and renewing a DHCP lease. . . . . . . . . . . . . . . . . . . . . . 183
Maintaining DHCP client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Configuring DHCP client logging messages. . . . . . . . . . . . . . . . . . . 184

Contents
8 Administration for the Avaya G250 and Avaya G350 Media Gateways
Configuring LLDP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Supported TLVs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Mandatory TLVs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Optional TLVs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
802.1 TLVs (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
LLDP configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Supported ports for LLDP. . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Chapter 7: Configuring logging . . . . . . . . . . . . . . . . . . . . . . 187
Configuring a Syslog server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Defining Syslog servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Disabling Syslog servers . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Deleting Syslog servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Displaying the status of the Syslog server. . . . . . . . . . . . . . . . . . 190
Syslog sink default settings. . . . . . . . . . . . . . . . . . . . . . . . . . 190
Syslog message format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Configuring a log file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Disabling logging system messages to a log file . . . . . . . . . . . . . . 191
Deleting current log file and opening an empty log file . . . . . . . . . . . 191
Displaying log file messages . . . . . . . . . . . . . . . . . . . . . . . . . 192
Displaying conditions defined for the file output sink . . . . . . . . . . . 192
Log file message format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Configuring a session log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Discontinuing the display of system messages. . . . . . . . . . . . . . . 193
Displaying how the session logging is configured . . . . . . . . . . . . . 194
Session logging message format. . . . . . . . . . . . . . . . . . . . . . . . . 194
Configuring logging filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Setting the logging filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Severity levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Sinks default severity levels . . . . . . . . . . . . . . . . . . . . . . . . . 196
Applications to be filtered. . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Syslog server example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Log file example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Session log example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Chapter 8: Configuring VoIP QoS . . . . . . . . . . . . . . . . . . . . . 201
Configuring RTP and RTCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Configuring header compression . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Header compression configuration options . . . . . . . . . . . . . . . . . . . 202
Configuring IPHC-type header compression . . . . . . . . . . . . . . . . . . 203

Contents
Issue 3 February 2007 9
Configuring VJ-type header compression . . . . . . . . . . . . . . . . . . . . 204
Displaying and clearing header compression statistics . . . . . . . . . . . . 205
Configuring QoS parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Configuring RTCP QoS parameters . . . . . . . . . . . . . . . . . . . . . . . 207
RSVP parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Weighted Fair VoIP Queuing (WFVQ). . . . . . . . . . . . . . . . . . . . . . . . . 207
Configuring Weighted Fair VoIP Queueing (WFVQ). . . . . . . . . . . . . . . 208
Chapter 9: Configuring the G250 and G350 for modem use . . . . . . . 209
Configuring the USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Configuring the USB port for modem use . . . . . . . . . . . . . . . . . . . . . . 209
Configuring the console port for modem use . . . . . . . . . . . . . . . . . . . . 211
Configuring the console device . . . . . . . . . . . . . . . . . . . . . . . . . 212
Chapter 10: Configuring WAN interfaces . . . . . . . . . . . . . . . . . 213
Serial interface overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Layer 1 T1 port with two channel groups . . . . . . . . . . . . . . . . . . 214
E1/T1 port channel group . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
USP port using PPP protocol . . . . . . . . . . . . . . . . . . . . . . . . . 215
USP port using frame relay protocol . . . . . . . . . . . . . . . . . . . . . 215
Frame Relay multipoint topology support . . . . . . . . . . . . . . . . . . . . 216
Initial WAN configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Configuring the Avaya MM340 E1/T1 WAN media module . . . . . . . . . . . 217
E1/T1 default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Configuring the Avaya MM342 USP WAN media module . . . . . . . . . . . . 221
USP default settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Configuring PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
PPPoE overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Configuring PPPoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
PPPoE commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Configuring frame relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Verifying the WAN configuration and testing connectivity . . . . . . . . . . . 231
Backup interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Configuring backup delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Interface backup relations rules . . . . . . . . . . . . . . . . . . . . . . . . . 233
Backup commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Modem dial backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Typical installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Prerequisites for configuring modem dial backup . . . . . . . . . . . . . . . 236

Contents
10 Administration for the Avaya G250 and Avaya G350 Media Gateways
Configuring modem dial backup . . . . . . . . . . . . . . . . . . . . . . . . . 237
Modem dial backup interactions with other features . . . . . . . . . . . . . . 240
Configuration example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Command sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Command sequence explanation. . . . . . . . . . . . . . . . . . . . . . . 244
Modem dial backup maintenance. . . . . . . . . . . . . . . . . . . . . . . . . 246
Activating session logging . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Setting the severity level of the logging session . . . . . . . . . . . . . . 246
ICMP keepalive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Enabling the ICMP keepalive feature . . . . . . . . . . . . . . . . . . . . . . . 253
Defining the ICMP keepalive parameters. . . . . . . . . . . . . . . . . . . . . 254
Example of configuring ICMP keepalive . . . . . . . . . . . . . . . . . . . . . 254
Dynamic CAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Enabling dynamic CAC and setting maximum bandwidth . . . . . . . . . . . 255
Displaying bandwidth information . . . . . . . . . . . . . . . . . . . . . . . . 256
Object tracking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Object tracking configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Configuring RTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Configuring object tracking. . . . . . . . . . . . . . . . . . . . . . . . . . 260
Object tracking maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Viewing RTR and object trackers logging . . . . . . . . . . . . . . . . . . 262
Example of tracking a single remote device . . . . . . . . . . . . . . . . . 263
Example of tracking a group of devices . . . . . . . . . . . . . . . . . . . 264
Typical object tracking applications . . . . . . . . . . . . . . . . . . . . . . . 265
Typical application – VPN failover using object tracking . . . . . . . . . . 266
Typical application – backup for the WAN Fast Ethernet interface . . . . 266
Typical application – interface backup via policy-based routing. . . . . . 269
Typical application – tracking the DHCP client default route. . . . . . . . 270
Frame relay encapsulation features . . . . . . . . . . . . . . . . . . . . . . . . . 271
Frame Relay Traffic Shaping and FRF.12 Fragmentation. . . . . . . . . . . . 272
Priority DLCI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
PPP VoIP configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Site A connection details . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Site B connection details . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Configuration Example for Site A. . . . . . . . . . . . . . . . . . . . . . . 275
Configuration Example for Site B. . . . . . . . . . . . . . . . . . . . . . . 276