Technical data

Table Of Contents
11
Sample Configurations 106
Chapter 5. Command Line Interface Reference 114
Command Line Interface Conventions 114
Command Input 114
Command Output 114
Command Organization 114
? or HELP 115
System Level Commands 116
Router Configuration Commands 124
Target Router System Configuration Commands (SYSTEM) 125
Target Router Ethernet LAN Bridging and Routing (ETH) 136
Remote Router Access Configuration (REMOTE) 144
Asymmetric Digital Subscriber Line Commands (ADSL) 164
Asynchronous Transfer Mode Commands (ATM) 166
Dual Ethernet Router Commands (ETH) 169
High-Speed Digital Subscriber Line Commands (HDSL) 173
ISDN Digital Subscriber Line (IDSL) 176
Symmetric Digital Subscriber Line Commands (SDSL) 178
Dynamic Host Configuration Protocol Commands (DHCP) 181
L2TP — Virtual Dial-Up Configuration (L2TP) 191
Bridging Filtering Commands (FILTER BR) 198
Save Configuration Commands (SAVE) 200
Erase Configuration Commands (ERASE) 202
File System Commands 204
Chapter 6. Managing the Router 208
Simple Network Management Protocol (SNMP) 208
TELNET Remote Access 209
Client TFTP Facility 209
TFTP Server 209
BootP Server 210
Boot Code 210
Manual Boot Menu 210
Identifying Fatal Boot Failures 214
Software Kernel Upgrades 214
Booting and Upgrading from the LAN 214
Upgrading from the WAN Line 216
Backup and Restore Configuration Files 216
Backup Configuration Files (Recommended Procedure) 217
Restore Configuration Files 217
FLASH Memory Recovery Procedures 217
Recovering Kernels for Routers with Configuration Switches 217
Recovering Kernels for Routers with a Reset Button (models 2210) 218
Recovering Passwords and IP Addresses 219
Routers with Configuration Switches 219
Routers with a Reset Button (models 2210) 220
Batch File Command Execution 220
Chapter 7. Troubleshooting 222
Diagnostic Tools 222
Using LEDs 222
History Log 223
Ping Command 224