HP 650 Installation Manual page 76

3-20
Troubleshooting
Identifying a Bad Component
Telnet
Telnet is an upper-layer service that allows you to interact with a remote
node's console interface, by establishing a virtual terminal connection.
This section describes the Telnet console connection from an HP router
that has IP routing and a Telnet session configured to a router or end
node that has Telnet service and is suspected of not routing successfully.
4. From the Main menu, select the Network Control Language Inter-
preter (NCL). The NCL prompt then appears at the bottom of the
screen. (See figure 3-1 on page 3-16.)
5. At the NCL prompt, enter the Telnet command:
telnet x.x.x.x [Return]
where:
x.x.x.x is the IP address of the remote node
in dotted decimal notation.
6. Once the connection is established, Telnet passes your keystrokes to
the remote system.
If the remote system is another HP router:
a. You will see the system name of the remote node as the NCL
prompt at the bottom of your display. Check the event log and
routing tables of the remote node as you do for your own router.
Use the Exit command to leave NCL and return to the remote
node's Main menu:
exit [Return]
b. To disconnect the Telnet session, use the Logout option from the
remote node's Main menu, and when you are prompted with:
Do you want to disconnect? [Y/N:]
press [Y] for "yes". The remote node is disconnected, the Telnet
session ends, and your local node's system name appears as the
prompt on your display.
If the remote system is not another HP router, then type the
appropriate commands to interact with that system and to
disconnect Telnet.
7. Use the Exit command to exit from NCL and return to the Main
menu:
exit [Return]