AIS AI2524 user manual Create X.29 Access Lists, Apply an Access List to a Line

Chapter 12: AI2524 X.25 Configuration Steps

This configuration specifies that traffic from any other interface on Cisco Router C4 that is intended for any NSAP address with NSAP- prefix 38.8261.20 will be switched through Serial 0.

interface serial 0 encapsulation x25 x25 address 00002

x25 map cmns 38.8261.20

Configuration for Router C3

This configuration specifies that any traffic from any other interface intended for any NSAP address with NSAP 38.8261.20 will be switched to MAC address 0800.4e02.123f through Ethernet 0.

interface ethernet 0 cmns enable

x25 map cmns 38.8261.20 0800.4e02.123f

This configuration specifies that traffic from any other interface on Router C3 that is intended for any NSAP address with NSAP-prefix 38.8261.21 will be switched through Serial 1.

interface serial 1 encapsulation x25 x25 address 00001

x25 map cmns 38.8261.21

Create X.29 Access Lists

Protocol translation software supports access lists, which make it pos- sible to limit access to the access server from X.25 hosts. Access lists take advantage of the message field defined by Recommendation X.29, which describes procedures for exchanging data between two PADs or between a PAD and a DTE device.

To define X.29 access lists, perform these tasks:

zCreate an Access List

zApply an Access List to a Line

When configuring protocol translation, you can specify an access list number with each translate command. When translation sessions result from incoming PAD connections, the corresponding X.29 ac cess list is used.

August 1997	Page 12-45
2524UM