3Com 3C421600A User manual

®
http://www.3com.com/
SuperStack®II
Remote Access System 1500
Reference Guide
Release 2.0
Part No. 1.024.2053 Rev 2.00
December, 1999

3Com Corporation
5400 Bayfront Plaza
Santa Clara, California
95052-8145
Copyright © 1999, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced
in any form or by any means or used to make any derivative work (such as translation, transformation, or
adaptation) without written permission from 3Com Corporation.
3Com Corporation reserves the right to revise this documentation and to make changes in content from time
to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty of any kind, either implied or expressed,
including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
3Com may make improvements or changes in the product(s) and/or the program(s) described in this
documentation at any time.
UNITED STATES GOVERNMENT LEGENDS:
If you are a United States government agency, then this documentation and the software described herein are
provided to you subject to the following:
United States Government Legend: All technical data and computer software is commercial in nature and
developed solely at private expense. Software is delivered as Commercial Computer Software as defined in
DFARS 252.227-7014 (June 1995) or as a commercial item as defined in FAR 2.101(a) and as such is provided
with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is
provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14
(June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided
on any licensed program or documentation contained in, or delivered to you in conjunction with, this
User Guide.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may
not be registered in other countries.
3Com, the 3Com logo, and SuperStack are registered trademarks of 3Com Corporation.
Intel and Pentium are registered trademarks of Intel Corporation. AIX, AT, IBM, NetView, and OS/2 are
registered trademarks and Warp is a trademark of International Business Machines Corporation. Microsoft,
MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell and
NetWare are registered trademarks of Novell, Inc.
Other brand and product names may be registered trademarks or trademarks of their respective holders.

CONTENTS
ABOUT THIS GUIDE
Conventions 19
Related Documentation 20
Year 2000 Compliance 21
1ROUTER CONFIGURATION OVERVIEW
Configuration Command Overview 23
Configurable Table Overview 24
Interface Tables 24
User Table 25
Local and Login Hosts Tables 25
Initialization Script and Global Host Tables 25
Facility Level Table 26
Module Table 26
IP Network Table 26
IP Address Pool Table 26
IP Interface Block Table 26
Forwarding and IP Routing Tables 26
SNMP Configuration Tables 27
SYSLOG Table 27
Event Critical Messages Table 27
Filter and Associated Tables 27
File Table 27
Network Services and Available Servers Tables 27
Dial-Out Port Table 28
UDP Listeners Table 28
TCP Connections Table 28
DNS and Associated Tables 28
TFTP Access Table 28
Remote Ping and Ping Busy Out Tables 28

Address Translation Table 28
CIP Port Parameter Table 28
User Manager Active Sessions Table 28
Modem Tables 28
PPP Tables 29
2ADMINISTRATIVE T
OOLS
Customizing CLI Parameters 31
Software Downloads 33
Dial, Connect and Hangup Commands 33
Exiting the CLI 34
Network Services 35
Troubleshooting Commands 39
Viewing Facility Errors 39
Terminating an Active Process 39
Resolving Addresses 39
Resolving Host Names 40
Using Ping 40
Viewing the RAS 1500 System Information 41
Viewing Interface Status, Settings 42
Monitor PPP Activity 42
Displaying System Information 42
List Commands 42
Show Commands 43
3ROUTER COMMAND OVERVIEW
Parameters 48
Entering Commands 48
Using Control Characters 48
Abbreviation and Command Completion 49
Help 49
Additional Conventions 49
Network Address Formats 50
Interface Ranges 51
Names 51
Users 52
Default User 52

Command Language Structure 52
4ROUTER COMMAND REFERENCE
Command Language Structure 56
Add Commands 57
add address_pool user <user_name> 57
add appletalk 58
add bridge
access_ mac_address 58
add bridge network 58
add datalink frame_relay 59
add datalink ppp 59
add dns server <IP_address> 60
add filter <filter_name> 60
add frame_relay
pvc <pvc name>
dlci <dlci number> interface
user <username> 61
add framed_route user <name> 61
add init_script <script_name> 61
add ip defaultroute gateway <IP_address or name> 62
add ip network <network_name> 62
add ip pool <pool_name> 63
add ip route <host_name or IP_network_address> 64
add ip udp_bcast_
forwarding_port 65
add ipx network <network_name> 65
add ipx route <ipx_network_
address> 66
add ipx service <service_name> 66
add login_host <host_name> 68
add modem_group <group_name> 68
add nat dynamic user <user_name> 69
add nat static user <user_name> 70
add network service <service_name> 71
add pat tcp user <user_name> 74
add pat udp user <user_name> 74
add snmp community <community_name> 75

add syslog <IP_name or address> 75
add tftp client <IP_name_or_
address> 76
add user <user_name> 76
Arp Command 77
arp <ip_host_name_or
_address> 77
Assign Command 78
assign interfaces <interface names> 78
Bye Command 79
bye 79
Copy Command 79
copy file <input_file> <output_file> 79
Delete Commands 79
delete address_pool user <name> 79
delete appletalk network
<network name> 79
delete appletalk
zone
<zone name> 79
delete bridge access_mac_address
<mac_address> 79
delete bridge network
<network name> 79
delete configuration 80
delete datalink frame_relay 80
delete datalink
PPP 80
delete dns cache <number> 80
delete dns host <host_name> 80
delete dns ncache <number> 80
delete dns server preference <preference_
number> 80
delete file <file_name> 80
delete filter <filter_name> 80
delete framed_route user <username> 80
delete init_script <script_name> 81
delete ip defaultroute <IP_address or name> 81
delete ip network <network_name> 81

delete ip pool
<pool name> 81
delete ip route <network_name or IP_address/subnet_
mask> 81
delete ip udp_bcast_
forwarding_port <port> 81
delete ipx network <network_name> 82
delete ipx route <ipx_network_
address> 82
delete ipx service <service_name> 82
delete login_host preference <preference_
number> 82
delete modem_group <group_name> 82
delete nat dynamic user <user_name> 83
delete nat static user <user_name> 83
delete network service <service_name> 83
delete pat tcp user <user_name> 83
delete pat udp user <user_name> 83
delete snmp community <name> 83
delete syslog <IP_name_or_
address> 84
delete tftp client <IP_name or address> 84
delete user <name> 84
Dial/dialout Commands 84
dial <user_name> 84
Disable Commands 84
disable accounting 84
disable appletalk network <network name> 84
disable authentication [local | remote] 84
disable dns host_rotation 85
disable icmp logging 85
disable icmp router_advertise 85
disable interface <interface name> 85
disable ip address_pool_
filtering 86
disable ip
forwarding 86
disable ip
network <network_name> 86

disable ip
rip 86
disable ip
routing 86
disable ip static_remote_routes 86
disable ip udp_broadcast_
forwarding 86
disable ipx
network <network_name> 87
disable ipx
rip network <network_name> 87
disable ipx
sap network <network_name> 87
disable modem_group <name> 87
disable
network service <service_name> 87
disable security_option remote_user_
administration
[dialin | telnet] 87
disable security_option
snmp user_access 87
disable telnet 87
disable user <user_name> 88
Disconnect Command 88
disconnect user <name> 88
Do Command 88
do <command_
inputfile>
output <outputfile> 88
Enable Commands 88
enable accounting 88
enable authentication
local | remote 88
enable bridge access_mac_address 89
enable bridge
network
<network name> 89
enable bridge
spanning_tree 89
enable datalink
frame_relay 89

enable datalink
ppp 89
enable dns host_rotation 90
enable dns host_rotation 90
enable icmp router_advertise 90
enable interface <interface_name> 90
enable ip address_pool_
filtering 91
enable ip
forwarding 91
enable ip
network <network_name> 91
enable ip
rip 91
enable ip
routing 91
enable ip security_option commands 91
enable ip static_remote_routes 92
enable ip
udp_broadcast_
forwarding 92
enable ipx
network <network_name> 92
enable ipx
rip network <network_name> 93
enable ipx
sap network <network_name> 93
enable modem_group <name> 93
enable network service
<service_ name> 93
enable security_option remote_user_
administration
<dialin | telnet> 93
enable security_option
snmp user_access 93
enable telnet 93
enable user <name> 93
Exit Command 94
exit 94
Hangup Commands 94
hangup interface <interface_name> 94

hangup modem_group <name> 95
Help Command 95
help <command> 95
Hide Command 95
hide events 95
History Command 95
history 95
Kill Command 96
kill <process name> 96
Leave Command 96
leave 96
List Commands 97
list active interfaces 97
list appletalk forwarding 97
list appletalk networks 97
list appletalk routes 98
list appletalk zones 98
list bridge access_mac_address 99
list bridge forwarding 99
list available servers 100
list connections 100
list critical events 101
list dhcp proxy leases 101
list dhcp server leases 102
list dial_out 102
list dns cache 103
list dns hosts 103
list dns ncache 103
list dns servers 104
list facilities 104
list files 104
list filters 104
list init_scripts 104
list interfaces 105
list ip addresses 105
list ip arp 105
list ip interface_block 106
list ip networks 106

list ip pools 106
list ip routes 107
list ip udp_bcast_
forwarding_port 107
list ipx networks 108
list ipx routes 108
list ipx services 108
list ipx static routes 109
list lan interfaces 109
list login_hosts 109
list modem_groups 110
list nat user
<user_name> 110
list network services 110
list networks 110
list pat user
<user_name> 111
list ping systems 111
list ppp 112
list processes 112
list sessions 112
list snmp communities 113
list stack 113
list switched interfaces 113
list syslogs 114
list tcp connections 114
list tftp clients 115
list udp listeners 115
list users 115
Logout Command 116
logout 116
Monitor Commands 116
monitor ppp 116
Monitoring Stop/Start 117
Idle Timer 118
Decode and Hexadecimal Display 118
Paused Commands 118
PING 118

Quit Command 120
quit 120
Reboot Command 120
reboot 120
Reconfigure Command 120
reconfigure ip network <network name> 120
Rename Command 121
rename file <input_file> <output_file> 121
Reset Commands 121
Resolve Command 122
resolve name <IP_host_name> 122
RLOGIN Command 122
rlogin <IP_name or address> 122
Save Commands 122
save all 122
Set Commands 123
set accounting 123
set appletalk network <network name> 124
set authentication 125
set bridge 126
set clearTCP connect_message <message string> 126
set command 127
set connection 128
set date <date> time <time> or set date <date> 128
set dhcp mode 129
set dhcp proxy [server1 | server2] 129
set dhcp relay [server1 | server2] 129
set dhcp server 130
set dial_out user <username> 132
set dns 132
set dns server preference <number> 133
set dst off 134
134
set dst on 134
set facility <facility_name> loglevel [level] 135
set frame_relay 136
set imodem interface <interface_name> 136
set init_script <script_name> 138

set interface <interface_name> 138
set ip address_assign_ mode 139
set ip defaultroute gateway <IP_address or name> 139
set ip multicast proxy interface <interface_name> 139
set ip network <name> 140
set ip pool <pool name> 143
set ip route <IP_hostname or network address> 143
set ip routing 144
set ipx network <network_name> 145
set ipx system 147
set login_host preference <preference_
number> 147
set modem_group <name> 148
set network service <admin_name> 151
set packet_logging 152
set ping maximum_rows <rows in table> 152
set ppp 152
set snmp community <name> 153
set switched interface <interface name> 154
set syslog <IP_address> 158
set system 159
set tcp maximum_
connections <number> 159
set time <time> 159
159
set timezone 159
Set User Commands 160
set user <user_name> 160
set dialout user <user_name> 162
set dialout user
<username> site 163
set framed_route user <name> 164
set login user <username> 165
set network user <name> 166
set network user <user_name> fcp 168
set network user <username> ppp 169
Show Commands 171
show accounting or show accounting settings 171

show accounting counters 172
show appletalk counters 172
show appletalk or show appletalk settings 173
show authentication or
show authentication settings 174
show authentication counters 174
show bridge or show bridge network <network name> settings 175
show clearTCP or show clearTCP settings 175
show command or show command settings 175
show configuration or
show configuration settings 176
show connection or show connection settings 176
show connection counters 176
show critical_event or show critical_event settings 176
show date 177
show dhcp mode 177
show ddp 177
show dhcp proxy counter 177
show dhcp proxy settings 178
show dhcp relay 178
show dhcp server counters 179
show dhcp server settings 179
show dial_out 179
show dns or show dns settings 179
show dns cache <1-65535> 180
show dns counters 181
show dns ncache <1-65535> 182
show events 183
show file <input_file_name> 183
show file <input_file_name> hex 184
show filter <filter_name> 184
show filter <filter_name> 185
show icmp or
show icmp settings 185
show icmp counters 186
show interface <interface_name> or show interface settings 187
show interface <interface_name> counters 189
show ip or show ip settings 191

show ip counters 191
show ip network <network_name> or show ip network settings 192
show ip routing or show ip routing settings 193
show ip security or show ip security settings 194
show ip udp_broadcast_
forwarding 194
show ipx or show ipx settings 194
show ipx counters 195
show ipx network <network_name>
or show ipx network settings 196
show ipx network <network_name> counters 197
show ipx rip or show ipx rip settings 198
show ipx rip counters 198
show ipx sap or show ipx sap settings 198
show ipx sap counters 198
show memory 198
show modem_group <name> 199
show network <name> or show network settings 199
show network <name> counters 199
show packet_logging or show packet_logging settings 200
show ping or show ping settings 200
show ping row <row_number> or show ping row <row_number>
settings 200
show ping row <row_number> counters 200
show ping server <host name or IP_address> counters 201
show ping server <host name or IP_address> or show ping server
settings 202
show ppp on interface
<interface name>, or
show ppp on interface <interface name> settings 203
show ppp on interface <interface name> counters 206
show ppp, or
show ppp settings 207
show security_option, or
show security_option settings 208
show slice 208
show slip, or
show slip settings 208
show snmp counters 209
show system or show system settings 210

show tcp, or
show tcp settings 211
show tcp counters 212
show telnet or show telnet settings 212
show time or
show timezone 213
show udp, or
show udp counters 213
show user <name> 213
Telnet Commands 214
telnet <IP_name or address> 214
telnet <IP_name or address> TCP_port <number> 215
Unassign Command 215
unassign interface <interface_name_list> 215
Verify Command 215
verify filter <filter_name> 215
Dial-in User Commands 215
exit 215
help 215
logout 215
manage 216
rlogin <ip_name_or_
address> 216
rlogin <host name or ip address> login_name <login name> tcp_port
<tcp port number> 216
telnet
<ip_name_or_
address> 216
telnet <ip_name_or_address> tcp_port <number> 216
Telnet Commands 216
close 216
help 216
send <string> 217
set escape <string> 217
status 217
CLI Exit Commands 217
bye, exit, leave, quit 217
logout 217
Command Features 218

Command Line Edit 218
Command Retrieval 218
Positional Help 218
Command Completion 219
Output Pause 219
Command Kill 219
AMODEM COMMAND REFERENCE
Modem Command Overview 221
Basic AT Commands 222
Ampersand Commands 223
Percent Commands 225
Asterisk Commands 226
Tilde Commands 228
Octothorp Commands 228
S-Register Commands 229
Using S-Register Commands 232
Changing an S-Register 232
Bit-Mapped S-Registers 233
BMODEM DISCONNECT AND RESULT CODES
Disconnect Codes 238
CADRESSING SCHEMES
Subnetting 242
Supernetting 244
Step 1 - Select a netmask for each supernet 244
Step 2 - Select a range of addresses for each supernet 246
Supernet Example 246
Supernetting and RAS 1500 248
IP Subnet Mask Address Table 249
DEVENT MESSAGES
SYSLOG Host Event Logging 251
Console Event Logging 252

Local FLASH File Event Logging 252
TELNET Session 252
Event Logging Levels 253
Event Logging Counters 253
Using SYSLOG 254
Configuring SYSLOG Hosts on RAS 1500 254
Setting the Event Log Level 254
Event Message Examples 255
IP Messages 255
Call Initiation Process Messages 258
User Manager Messages 259
Filter Manager Process Messages 259
UDP Messages 260
Configuration File Manager Messages 260
TELNET Messages 261
IP Dial-out Process Messages 262
INDEX

ABOUT THIS GUIDE
This guide describes how to configure the software for the SuperStack®II
Remote Access System (RAS) 1500.
This guide is intended for administrators with knowledge of networking,
telephony, and remote-access applications. While the initial configuration
can be accomplished with the help of the RAS 1500 Quick Setup
program, a more substantial configuration requires a broader
understanding of networking principles.
If the information in the release notes that are shipped with your product
differs from the information in this guide, follow the instructions in the
release notes.
Conventions Table 1 and Table 2 list conventions that are used throughout this guide.
Table 1 Notice Icons
Icon Notice Type Description
Information note Information that describes important features or
instructions
Caution Information that alerts you to potential loss of data
or potential damage to an application, system, or
device
Warning Information that alerts you to potential personal
injury

20 ABOUT THIS GUIDE
Related
Documentation
The RAS 1500 documentation set includes the following documents. All
3Com documentation is available on the 3Com Web site:
http://www.3Com.com
■Base Unit Memory Upgrade SuperStack II Remote Access System 1500
Table 2 Text Conventions
Convention Description
Syntax The word “syntax” means you must evaluate the syntax
provided and supply the appropriate values. Placeholders
appear in angle brackets for values that you must supply.
Example:
Set callback user primary dial-back number
Set user <name> phone_number <number>
In this example, you must supply the username for <name>
and phone number for <number>.
Commands The word “command” means you must enter the command
exactly as shown in text and press the Return or Enter key.
Example:
To list the current IP routes, enter the following
command:
list IP routes
This guide always gives the full form of a command in
uppercase and lowercase letters. However, you can
abbreviate commands by entering only the uppercase
letters and the appropriate value. Commands are not
case-sensitive.
Screen displays This typeface represents information as it appears on the
screen.
The words “enter”
and “type”
When you see the uppercase word “enter” in this guide,
press the Enter key. Do not press Enter when an instruction
simply says “type.”
Words in italics Italics are used to indicate the following:
■Emphasize a point.
■Denote a new term at the place where it is defined in the
text.
■Identify CLI command parameters, for example:
Supply the IP address parameter.