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Configuration of RIP and IGRP 387

A couple of important items should be noted in the debug output of Example 6-10. (As always,
the specific portions of the examples referred to in the text after the example are highlighted.)
The updates sent by Albuquerque are sent to multicast IP address 224.0.0.9, as opposed to a
broadcast address; this allows the devices that are not using RIP-2 to ignore the updates and not

00:36:04: 10.1.3.192/26 -> 0.0.0.0 in 2 hops
00:36:08: RIP: sending v2 update to 224.0.0.9 via Serial0 (10.1.4.251)
00:36:08: 10.1.1.0/24 -> 0.0.0.0, metric 1, tag 0
00:36:08: 10.1.6.0/24 -> 0.0.0.0, metric 1, tag 0
00:36:08: 10.1.3.192/26 -> 0.0.0.0, metric 2, tag 0
00:36:08: RIP: sending v2 update to 224.0.0.9 via Serial1 (10.1.6.251)
00:36:08: 10.1.2.0/24 -> 0.0.0.0, metric 2, tag 0
00:36:08: 10.1.1.0/24 -> 0.0.0.0, metric 1, tag 0
00:36:08: 10.1.4.0/24 -> 0.0.0.0, metric 1, tag 0
00:36:08: RIP: sending v2 update to 224.0.0.9 via Ethernet0 (10.1.1.251)
00:36:08: 10.1.2.0/24 -> 0.0.0.0, metric 2, tag 0
00:36:08: 10.1.6.0/24 -> 0.0.0.0, metric 1, tag 0
00:36:08: 10.1.5.0/24 -> 0.0.0.0, metric 2, tag 0
00:36:08: 10.1.4.0/24 -> 0.0.0.0, metric 1, tag 0
00:36:08: 10.1.3.192/26 -> 0.0.0.0, metric 2, tag 0
00:36:20: RIP: received v2 update from 10.1.6.253 on Serial1
00:36:20: 10.1.2.0/24 -> 0.0.0.0 in 2 hops
00:36:20: 10.1.5.0/24 -> 0.0.0.0 in 1 hops
00:36:20: 10.1.3.192/26 -> 0.0.0.0 in 1 hops
00:36:30: RIP: received v2 update from 10.1.4.252 on Serial0
00:36:30: 10.1.2.0/24 -> 0.0.0.0 in 1 hops
00:36:30: 10.1.5.0/24 -> 0.0.0.0 in 1 hops
00:36:30: 10.1.3.192/26 -> 0.0.0.0 in 2 hops

Albuquerque#no debug all
All possible debugging has been turned off

Albuquerque#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default
U - per-user static route, o - ODR

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
R 10.1.2.0/24 [120/1] via 10.1.4.252, 00:00:09, Serial0
C 10.1.1.0/24 is directly connected, Ethernet0
C 10.1.6.0/24 is directly connected, Serial1
R 10.1.5.0/24 [120/1] via 10.1.4.252, 00:00:09, Serial0
[120/1] via 10.1.6.253, 00:00:19, Serial1
C 10.1.4.0/24 is directly connected, Serial0
R 10.1.3.192/26 [120/1] via 10.1.6.253, 00:00:19, Serial1
Albuquerque#

Example 6-10

RIP-2 Routing Updates, No Auto Summary, on Albuquerque (Continued)

ch06.fm Page 387 Monday, March 20, 2000 5:11 PM