Command Reference Guide

3Com Router 5000 Family and Router 6000 Family x25 default-protocol ● 323
Command Reference
x25 default-protocol
Purpose Use the x25 default-protocol command to set the default upper-layer protocol
carried over X.25 for the X.25 interface.
Use the undo x25 default-protocol command to restore the default
upper-layer protocol.
Syntax x25 default-protocol protocol-type
undo x25 default-protocol
Parameters protocol-type
Protocol type, may be IP.
Default By default, IP is carried over X.25.
Example Set the default upper-layer protocol over the X.25 interface Serial0/0/0 as IP.
[3Com-Serial0/0/0] x25 default-protocol ip
View This command can be used in the following views:
■ Interface view
Description During X.25 SVC setup, the called device will check the call user data field of X.25 call
request packet. If it is an unidentifiable one, the called device will deny the setup of
the call connection. However, a user can specify a default upper-layer protocol carried
over X.25. When X.25 receives a call with unknown CUD, the call can be treated
based on the default upper-layer protocol specified by a user.
Related Command x25 map