From: Alex Rhyubisef (foselkr@xxxxxxxxxxx)
Date: Thu Feb 07 2002 - 08:43:08 GMT-3
Hi all,
I have a problem on igrp & ospf mutual redistribution.
my R5-router(IGRP Only)'s loopback0 is redistributed
to R6(OSPF & IGRP).
R5 is connected to R6 via Fastethernet(igrp running).
At first, R6 has the Loopback network(175.3.5.0)
but after a short time, the network is possibly down
and disappeared.
so i try debug ip igrp both routers.
the R5 keeps on sending 175.3.5.0 to r6 , but r6 fails
to take the route.
why doesn't R6 receive the R5's loopback0?
when i clear ip route on R6,
the message "IGRP: received update from 175.3.56.5 on
FastEthernet0/1.10" is appeared.
but after a short time, the network is possibly down
and disappeared.
Any suggestions on what I am doing wrong?
============================================================================
R5#sh run
interface Loopback0
ip address 175.3.5.5 255.255.255.0
interface FastEthernet0/0
ip address 175.3.56.5 255.255.255.0
router igrp 500
network 175.3.0.0
Rack01R5#sh ip route
Gateway of last resort is not set
C 175.3.5.0 is directly connected, Loopback0
I 175.3.6.0 [100/610] via 175.3.56.6, 00:01:06,
FastEthernet0/0
I 175.3.3.0 [100/2010] via 175.3.56.6, 00:01:06,
FastEthernet0/0
C 175.3.56.0 is directly connected,
FastEthernet0/0
I 175.3.66.0 [100/1175] via 175.3.56.6,
00:01:07, FastEthernet0/0
============================================================================
R6#sh run
interface Serial0/0
ip address 175.3.66.6 255.255.255.0
interface FastEthernet0/0
ip address 175.3.6.5 255.255.255.0
interface FastEthernet0/1
no ip address
!
interface FastEthernet0/1.10
encapsulation isl 10
ip address 175.3.56.6 255.255.255.0
!
interface FastEthernet0/1.20
encapsulation isl 20
router ospf 300
redistribute igrp 500 subnets
network 175.3.6.0 0.0.0.255 area 1
network 175.3.66.0 0.0.0.255 area 2
router igrp 500
redistribute ospf 300 metric 10000 1000 255 1 1500
passive-interface FastEthernet0/0
passive-interface serial0/0
network 175.3.0.0
R6#sh ip route
Gateway of last resort is not set
O 175.3.3.0/24 [110/65] via 175.3.34.4,
00:08:04, Serial0/0
I 175.3.5.0/24 [100/610] via 175.3.56.5,
00:00:00, FastEthernet0/1.10
C 175.3.6.0/24 is directly connected,
FastEthernet0/0
C 175.3.56.0/24 is directly connected,
FastEthernet0/1.10
C 175.3.66.0/24 is directly connected, Serial0/0
R6#sh ip route
Gateway of last resort is not set
O 175.3.3.0/24 [110/65] via 175.3.34.4,
00:08:04, Serial0/0
I 175.3.5.0/24 is possibly down,
routing via 175.3.56.5, FastEthernet0/1.1
C 175.3.6.0/24 is directly connected,
FastEthernet0/0
C 175.3.56.0/24 is directly connected,
FastEthernet0/1.10
C 175.3.66.0/24 is directly connected, Serial0/0
============================================================================
Rack01R6#debug ip igr transactions
Rack01R6#debug ip routing
01:20:28: RT: flushed route to 175.3.5.0 via
175.3.56.5 (FastEthernet0/1.10)
01:20:28: RT: no routes to 175.3.5.0, entering
holddown
01:20:28: IGRP: edition is now 2
01:20:28: IGRP: sending update to 255.255.255.255 via
FastEthernet0/1.10 (175.3.56.6)
01:20:28: subnet 175.3.5.0, metric=4294967295
01:20:28: subnet 175.3.6.0, metric=501
01:20:28: subnet 175.3.3.0, metric=2000
01:20:28: subnet 175.3.66.0, metric=1125
01:20:28: network 150.100.0.0, metric=2000
============================================================================
Rack01R5#debug ip igr transactions
02:25:40: IGRP: received update from 175.3.56.6 on
FastEthernet0/0
02:25:40: subnet 175.3.6.0, metric 610 (neighbor
501)
02:25:40: subnet 175.3.3.0, metric 2010
(neighbor 2000)
02:25:40: subnet 175.3.66.0, metric 1175
(neighbor 1125)
02:26:29: IGRP: sending update to 255.255.255.255 via
FastEthernet0/0 (175.3.56.5)
02:26:29: subnet 175.3.5.0, metric=501
02:26:29: IGRP: sending update to 255.255.255.255 via
Loopback0 (175.3.5.5)
02:26:29: subnet 175.3.6.0, metric=610
02:26:29: subnet 175.3.3.0, metric=2010
02:26:29: subnet 175.3.66.0, metric=1175
Rack01R5#debug ip igr transactions
02:27:25: IGRP: received update from 175.3.56.6 on
FastEthernet0/0
02:27:25: subnet 175.3.5.0, metric 4294967295
(inaccessible)
02:27:25: subnet 175.3.6.0, metric 610 (neighbor
501)
02:27:25: subnet 175.3.3.0, metric 2010
(neighbor 2000)
02:27:25: subnet 175.3.66.0, metric 1175
(neighbor 1125)
02:27:58: IGRP: sending update to 255.255.255.255 via
FastEthernet0/0 (175.3.56.5)
02:27:58: subnet 175.3.5.0, metric=501
02:27:58: IGRP: sending update to 255.255.255.255 via
Loopback0 (175.3.5.5)
02:27:58: subnet 175.3.6.0, metric=610
02:27:58: subnet 175.3.3.0, metric=2010
02:27:58: subnet 175.3.66.0, metric=1175
This archive was generated by hypermail 2.1.4 : Thu Jun 20 2002 - 13:46:14 GMT-3