Specifications

9-25
Cisco 1700 Series Router Software Configuration Guide
78-5407-03
Chapter 9 Configuring X.25
X.25 over ISDN D Channel
Configuring the ISDN Subinterface for X.25
Follow these steps to configure an ISDN subinterface.
Command Task
Step1
interface BRI0 Enter configuration mode for the ISDN
interface.
Step2
ip address 192.168.40.41 255.255.255.0 Configure this interface with an IP address.
Step3
encapsulation ppp Set the encapsulation method on this
interface to PPP.
Step4
isdn x25 dchannel Create a configurable interface for X.25
traffic over the ISDN D channel.
Step5
isdn x25 static-tei 1 Configure a static ISDN Layer 2 terminal
endpoint identifier (TEI) for X.25 over the
ISDN D channel.
Step6
dialer map ip 192.168.40.40 name remote
broadcast 5558461 dialer-group 1
Configure this interface to place a call to
multiple sites and to authenticate calls from
multiple sites, based on IP address and
dialer string.
The name you enter after the name keyword
in this command must match the name
entered with the username command in the
“Configuring Security” section on
page 9-22.
Step7
ppp authentication chap Enable CHAP or PAP authentication on this
interface.
Step8
no shutdown Enable the interface and the configuration
changes that you have just made on the
interface.
Step9
exit Exit configuration mode for this interface.