Cisco Cisco IOS Software Release 12.2(2)XI

Configure the BRI 0 interface.

Enter the command interface bri0.

Configure an IP address and subnet mask for the BRI 0 interface by entering the command 
ip address ip-address subnet-mask.

Enter the command end to leave configuration mode.

The following examples show configurations for routers at both ends of an XOT link. The first 
configuration is for the router with the X.25 hostname Router1:

ip tcp synwait-time 5

service pad to-xot 

service pad from-xot 

!

x25 routing

!

interface bri0

 ip address  192.168.1.2 255.255.255.0

 dialer string 914085460166

 dialer-group 1

 isdn switch-type basic-5ess

 !

no ip http server

ip classless

!

dialer-list 1 protocol ip permit

!

x25 route 333 xot 192.168.1.3 <----| Routes the pad call to 333 via XOT.

x25 host Router1 222               <----| Sets the X.121 address to this host

The following example shows the configuration for the router at the other end of the XOT link, 
named Router2:

ip tcp synwait-time 5

service pad to-xot

service pad from-xot

!

x25 routing

!

interface bri0

 ip address 192.168.1.3 255.255.255.0

 dialer string 914085460165

 dialer-group 1

 isdn switch-type basic-5ess

!

x25 route 222 xot 192.168.1.2  <-| Allows any pad call from 222 to be routed back via XOT.

x25 host Router2 333 <----| Sets the X.121 address for this host 

!

To verify X.25 connections, use the command pad to log on to remote routers and the command show 
to display X.25 virtual circuit activity. The following example displays a logon sequence conducted 
from Router2. The command pad 222 to log on to Router1. When the password is verified, the Router1 
prompt appears, which shows that the link works.