Setting Up Telnet Operation

Temporarily Reconfiguring a Host for Command Line Management

You can temporarily reconfigure an IP host in order to set the router’s IP parameters to allow in-band Telnet access. Once you have set these parameters you will want to change the host’s configuration back to its original settings.

If you wish to set the router’s basic IP parameters in this fashion, the host must be on the same Ethernet segment as the router’s Ethernet interface. You can set the host’s IP address to 198.41.12.2, with a class C mask (255.255.255.0) and then Telnet to 198.41.12.1.

Enter the default password letmein at the password prompt. The command line interface prompt will appear on the screen.

See the next section (Setting Up Telnet Operation) for information on setting the router to allow Telnet access from hosts on its network.

In order to communicate to the router via Telnet from any host on your IP internetwork, you must complete basic IP configuration for the router interface which is connected to your Ethernet.

Basic IP configuration can be done using the interface, set ip, and save commands from a console or a reconfigured host. For more information on these commands, see the interface(misc), ip(set), and save(misc) commands in the Command Line Reference Guide which was supplied with your router.

The required parameters for Telnet access to an interface are the IP address, IP subnet mask, and IP broadcast address. To change the configuration parameters in the BR Router, the router will request a password. The default for this password is also letmein.

After you have set these basic IP parameters, you can use Telnet to access the router from any node on your IP internetwork. Invoke the Telnet client on your local host with the IP address of the router you wish to manage.

vNote: Proper syntax is vital to effective operation of the command line. Case is not significant – you may enter commands in upper case, lower case, or a combination of the two.