R1 ---- R2 ---- R3
router R1 is running igrp process 1
router R2 is running igrp process 1 and eigrp process 2
router R3 is running igrp process 1 and eigrp process 2
R1 is running IGRP on network 10.0.0.0.
I would expect R1 advertise router 10.0.0.0 to R2 via igrp and R2
advertise 10.0.0.0 via igrp to R3
But this is the result of R3 routing table:
R3#sh ip route
D 192.168.12.0/24 [90/2681856] via 192.168.23.1, 00:04:45, Serial0.32
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0
D EX 10.0.0.0/8 [170/2809856] via 192.168.23.1, 00:04:46, Serial0.32
C 192.168.23.0/24 is directly connected, Serial0.32
Debug igrp transactions shows R3 receiving news about 10.0.0.0 network,
but the route is not installed on the routing table via IGRP; as IGRP
has a better administrative cost than redistributed routes via EIGRP, I
would expect the IGRP route to be the routing table.
R3#debu ip igrp transactions
IGRP protocol debugging is on
IP routing:
IGRP protocol debugging is on
00:24:24: IGRP: sending update to 255.255.255.255 via Serial0.32
(192.168.23.2) - suppressing null update
00:24:56: IGRP: received update from 192.168.23.1 on Serial0.32
00:24:56: network 192.168.12.0, metric 10476 (neighbor 8476)
00:24:56: network 10.0.0.0, metric 10976 (neighbor 8976)
R1
interface Loopback1
ip address 10.10.10.10 255.255.255.0
!
interface Serial0.12 point-to-point
ip address 192.168.12.1 255.255.255.0
frame-relay interface-dlci 112
!
router igrp 1
network 10.0.0.0
network 192.168.12.0
R2
interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Serial0.21 point-to-point
ip address 192.168.12.2 255.255.255.0
no ip directed-broadcast
frame-relay interface-dlci 121
!
interface Serial0.23 point-to-point
ip address 192.168.23.1 255.255.255.0
no ip directed-broadcast
frame-relay interface-dlci 123
!
router eigrp 1
network 192.168.23.0
!
router igrp 1
network 192.168.12.0
network 192.168.23.0
R3
interface Serial0.32 point-to-point
ip address 192.168.23.2 255.255.255.0
frame-relay interface-dlci 132
!
router eigrp 1
network 192.168.23.0
no eigrp log-neighbor-changes
!
router igrp 1
network 192.168.23.0
Any Thoughts?
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=64625&t=64625
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