Technical data
Table Of Contents
- Preface
- Introduction
- Chapter 1. Advanced Topics
- Chapter 2. Planning For Router Configuration
- Important Terminology
- Collect your Configuration Information
- PPP Link Protocol (over ATM or Frame Relay)
- IP Routing Network Protocol
- IPX Routing Network Protocol
- Bridging Network Protocol
- RFC 1483 / RFC 1490 Link Protocols
- IP Routing Network Protocol
- IPX Routing Network Protocol
- Bridging Network Protocol
- MAC Encapsulated Routing: RFC 1483MER / RFC 1490MER Link Protocols
- IP Routing Network Protocol
- FRF8 Link Protocol
- IP Routing Network Protocol
- Dual Ethernet Router Configuration
- General Information
- Configuring the Dual Ethernet Router as a Bridge
- Configuring the Dual Ethernet Router for IP Routing
- Chapter 3. Configuring Router Software
- Configuration Tables
- Configuring PPP with IP Routing
- Configuring PPP with IPX Routing
- Configuring PPP with Bridging
- Configuring RFC 1483 / RFC 1490 with IP Routing
- Configuring RFC 1483 / RFC 1490 with IPX Routing
- Configuring RFC 1483 / RFC 1490 with Bridging
- Configuring MAC Encapsulated Routing: RFC 1483MER / RFC 1490MER with IP Routing
- Configuring FRF8 with IP Routing
- Configuring Mixed Network Protocols
- Configuring a Dual Ethernet Router for IP Routing
- Verify the Router Configuration
- Sample Configurations
- Sample Configuration 1 — PPP with IP and IPX
- Scenario
- Sample Configuration 1 — Diagram for Target Router (SOHO)
- Sample Configuration 1 — Tables For Target Router (SOHO)
- Sample Configuration 1 - Check the Configuration with the “list” Commands
- Information About Names And Passwords
- Sample Configuration 2 — RFC 1483 with IP and Bridging
- Scenario
- Sample Configuration 2 — Diagram for Target Router SOHO
- Sample Configuration 2 — Tables For Target Router (SOHO)
- Sample Configuration 2 - Check the Configuration with the “list” Commands
- Sample Configuration 3 — Configuring a Dual Ethernet Router for IP Routing
- Scenario
- Configuration Tables
- Chapter 4. Configuring Special Features
- Bridging Filtering and IP Firewall
- IP (RIP) Protocol Controls
- DHCP (Dynamic Host Configuration Protocol)
- General Information
- Manipulating Subnetworks and Explicit Client Leases
- Enabling/disabling a subnetwork or a client lease
- Adding subnetworks and client leases
- Setting the lease time
- Manually changing client leases
- Setting Option Values
- Concepts
- Commands for global option values
- Commands for specific option values for a subnetwork
- Commands for specific option values for a client lease
- Commands for listing and checking option values
- BootP
- About BootP and DHCP
- Enable/Disable BootP
- Use BootP to specify the boot server
- Defining Option Types
- Concepts
- Commands
- Configuring BootP/DHCP Relays
- Other Information
- NAT (Network Address Translation)
- Management Security
- Software Options Keys
- Encryption
- IP Filtering
- L2TP Tunneling - Virtual Dial-Up
- Introduction
- L2TP Concepts
- LNS, L2TP Client, LAC, and Dial User
- L2TP Client Example
- LNS and L2TP Client Relationship
- Tunnels
- Sessions
- Configuration
- Preliminary Steps to Configure a Tunnel
- Verification Steps
- Configuration Commands
- PPP Session Configuration
- Sample Configurations
- Simple L2TP Client Configuration Example
- Complete LNS and L2TP Client Configuration Example
- Configuration Process
- Chapter 5. Command Line Interface Reference
- Command Line Interface Conventions
- System Level Commands
- Router Configuration Commands
- Target Router System Configuration Commands (SYSTEM)
- Target Router Ethernet LAN Bridging and Routing (ETH)
- Remote Router Access Configuration (REMOTE)
- Asymmetric Digital Subscriber Line Commands (ADSL)
- Asynchronous Transfer Mode Commands (ATM)
- Dual Ethernet Router Commands (ETH)
- General information
- High-Speed Digital Subscriber Line Commands (HDSL)
- General information about HDSL
- ISDN Digital Subscriber Line (IDSL)
- General information about IDSL
- Symmetric Digital Subscriber Line Commands (SDSL)
- General information about SDSL
- Dynamic Host Configuration Protocol Commands (DHCP)
- L2TP — Virtual Dial-Up Configuration (L2TP)
- Bridging Filtering Commands (FILTER BR)
- Save Configuration Commands (SAVE)
- Erase Configuration Commands (ERASE)
- File System Commands
- Chapter 6. Managing the Router
- Simple Network Management Protocol (SNMP)
- TELNET Remote Access
- Client TFTP Facility
- TFTP Server
- BootP Server
- Boot Code
- Manual Boot Menu
- Access Manual Boot Mode
- Option 1: Retry Start-up
- Option 2: Boot from FLASH Memory
- Option 3: Boot from Network
- Option 4: Boot from Specific File
- Option 5: Configure Boot System
- Option 6: Set Time and Date
- Option 7: Set Console Baud Rate
- Option 8: Start Extended Diagnostics
- Identifying Fatal Boot Failures
- Software Kernel Upgrades
- Backup and Restore Configuration Files
- FLASH Memory Recovery Procedures
- Recovering Passwords and IP Addresses
- Batch File Command Execution
- Chapter 7. Troubleshooting
- Appendix A. Network Information Worksheets
- Configuring PPP with IP Routing
- Configuring PPP with IPX Routing
- Configuring PPP with Bridging
- Configuring RFC 1483 / RFC 1490 with IP Routing
- Configuring RFC 1483 / RFC 1490 with IPX Routing
- Configuring RFC 1483 / RFC 1490 with Bridging
- Configuring RFC 1483MER / RFC 1490MER with IP Routing
- Configuring FRF8 with IP Routing
- Configuring a Dual Ethernet Router for IP Routing
- Appendix B. Configuring IPX Routing
- Index

220
Routers with a Reset Button (models 2210)
The following step will assist you in recovering the router’s administrative password or IP address, should you
forget them.
Push in the reset button and hold it for 3 second while the router is running. With this step, the following features
are enabled for a length of 10 minutes:
• The system password can be overridden by using the router’s serial number as a password.
• A DHCP client address is enabled or created, so that a connected PC can get an IP address from the router.
Batch File Command Execution
This feature is used to load batch files of configuration commands into the router. This allows for customization
and simpler installation of the router. A script file can contain commands, comments (lines introduced by the # or;
characters) and blank lines.
There are two kinds of script files:
• A one-time script that is executed on startup (only once).
• A group of commands that can be executed at any time from the Command Line Interface with the
execute
<
filename
>
command.
One-time scripts are useful to execute the complete configuration process from a default (unconfigured) state.
The following steps describe how to proceed in order to create and execute a one-time script from the Quick Start
application.
• Create the script on your PC using Notepad or other text editor. The command syntax can be found in the
Command Line Reference manual or enter
?
on the router command line (assuming you have access to the
Command Line with the console or with Telnet).
• Select the
Tools | Execute Script
menu item and choose the script file you just prepared. When you click
OK
, the script file is loaded to the router (under the name AUTOEXEC.BAT) and the router is restarted, thus
executing the script.
Alternatively, you can manually transfer the script file from your PC to the router using the following method:
• Start the TFTP server on your PC and set the root directory where the script file is located
• Use the following command to copy the script file to the router file system:
copy tftp@
<
PC_IP_address
>:<
PC_file
> <
router_file
>
• To process the commands in the script file, you can either reboot your router (if the script file was copied
under the name AUTOEXEC.BAT onto the router) or use the command
execute <
file
>
.
NOTES:
If present, the file AUTOEXEC.BAT is renamed AUTOEXEC.OLD before it is executed, so that it is
only run once. If you clear the router configuration with the
Reset Defaults
button of the
Upgrade/Backup
tool or
the
reboot default
command, the AUTOEXEC.OLD is renamed back to AUTOEXEC.BAT and re-run after the
boot up, thus restoring your configuration.
You can include the commands
rename
<
autoexec.old
> <
autoexec.bat
> or
reboot
in a script file: there is no
limitation on the commands that you might define in your scripts. The
rename
command is useful if you need the










