Configuring X.25 Pad - 3Com MSR 50 Series Configuration Manual

306 C 14: X.25
HAPTER AND

Configuring X.25 PAD

LAPB C
ONFIGURATION
X.25 PAD facilities are thus regarded procedures translators or network servers,
helping different terminals access X.25 networks.
The system implements X.29 and X.3 protocols in the X.25 PAD protocol suite. In
addition, it implements X.29-based Telnet. This allows you to telnet to a remote
router through X.25 PAD when IP-based Telnet is not preferred for security sake, as
shown in the figure below.
Figure 66 Log onto a remote router through X.25 PAD
S 2/0
Router A
Place an X.25 PAD call to log onto a remote device
If two routers on an X.25 network support X.25 PAD, you can use the pad
command to place an X.25 PAD call on one router (the client) to log onto the
other router (the server). If authentication is configured, the server will
authenticate the client before allowing it to log in.
After logging onto the server, you can access the configuration interface on the
server.
You can nest a pad command within another pad command or a telnet
command. By nesting commands, you can do the following on your router:
Place an X.25 PAD call to log onto another router; and from that router, place
■
another X.25 PAD call to log onto a third router, and so on.
Telnet to another router; and from that router, place an X.25 call to log onto a
■
third router, and so on.
Place an X.25 PAD call to log onto another router; and from that router, telnet
■
to a third router, and so on.
To ensure transmission, limit nesting operations within three.
Logout operations are done in the reverse direction. You can execute the quit
command multiple times to log out the currently logged-in router and all the
in-between routers one by one.
Set the delay waiting for the response to an Invite Clear message
The server end of X.25 PAD may send an Invite Clear message to the client, for
example, after receiving an exit request from client or in order to release the link.
At the same time, a timer is started. If no response is received upon expiration of
the timer, the server will clear the link.
Configuration procedure
To configure X.25 PAD, use the following commands:
To do...
Enter system view
S2/0
X.25 network
Use the command...
system-view
Router B
Remarks
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