CCNA Cisco Certified Network Associate Study Guide - FTP Server

2621A
2501A
Configuring IGRP in Our Internetwork 271
The AS number, as shown in the router output below, can be any number
from 1 to 65535. A router can be a member of as many ASs as you need it
to be.
2621A#config t
Enter configuration commands, one per line. End with
CNTL/Z.
2621A(config)#router igrp ?
Autonomous system number
2621A(config)#router igrp 10
2621A(config-router)#netw 172.16.0.0
2621A(config-router)#^Z
2621A#
The router igrp command turns IGRP routing on in the router. As with
RIP, you still need to add the network number you want to advertise. IGRP
uses classful routing, which means that subnet mask information is not sent
with the routing protocol updates.
To configure the 2501A router, all you need to do is turn on IGRP routing
using AS 10 and then add the network number, as shown below.
2501A#config t
Enter configuration commands, one per line. End with
CNTL/Z.
2501A(config)#router igrp 10
2501A(config-router)#netw 172.16.0.0
2501A(config-router)#^Z
2501A#