From: Roman Rodichev (rodic000@xxxxxxxxxxx)
Date: Sat Jun 02 2001 - 12:09:57 GMT-3
Is he summarizing OSPF routes into 15.0.0.0/8 ?
>From: "McCallum, Robert" <Robert.McCallum@let-it-be-thus.com>
>To: 'Roman Rodichev' <rodic000@hotmail.com>, ccielab@groupstudy.com
>Subject: RE: Bootcamp Lab 17 - IGRP issues
>Date: Sat, 2 Jun 2001 10:57:38 +0100
>
>Roman,
>
>You are perfectly right about both routers sending the same info please see
>below for debug ip igrp events and transactions. I cannot see any mention
>of route rejection though. This is quite strange as I have now looked at
>the answers and they have the same configs as me but in there routing table
>the network shows up. Strange as it is though it shows up in and OSPF
>route
>not an IGRP route. Any clues?
>
>ROUTER 6 DEBUG
>IGRP: sending update to 255.255.255.255 via Serial0/0 (10.1.10.6)
>2d18h: subnet 10.1.11.0, metric=6000
>2d18h: network 200.200.200.0, metric=6000
>2d18h: network 1.0.0.0, metric=6000
>2d18h: network 15.0.0.0, metric=501
>2d18h: IGRP: Update contains 1 interior, 3 system, and 0 exterior routes.
>2d18h: IGRP: Total routes in update: 4
>2d18h: IGRP: received update from 10.1.10.3 on Serial0/0
>2d18h: subnet 10.3.1.0, metric 8976 (neighbor 1125)
>2d18h: subnet 10.2.1.0, metric 8539 (neighbor 688)
>2d18h: network 172.27.0.0, metric 8976 (neighbor 1125)
>2d18h: network 15.0.0.0, metric 8976 (neighbor 501)
>2d18h: IGRP: Update contains 2 interior, 2 system, and 0 exterior routes.
>2d18h: IGRP: Total routes in update: 4
>
>ROUTER3 DEBUG
>GRP: received update from 10.1.10.6 on Serial0/0
>2d18h: subnet 10.1.11.0, metric 9476 (neighbor 6000)
>2d18h: network 200.200.200.0, metric 9476 (neighbor 6000)
>2d18h: network 1.0.0.0, metric 9476 (neighbor 6000)
>2d18h: network 15.0.0.0, metric 8976 (neighbor 501)
>2d18h: IGRP: Update contains 1 interior, 3 system, and 0 exterior routes.
>2d18h: IGRP: Total routes in update: 4^Z
>R3#
>2d18h: %SYS-5-CONFIG_I: Configured from console by console
>2d18h: IGRP: sending update to 255.255.255.255 via Serial0/0 (10.1.10.3)
>2d18h: subnet 10.3.1.0, metric=1125
>2d18h: subnet 10.2.1.0, metric=688
>2d18h: network 172.27.0.0, metric=1125
>2d18h: network 15.0.0.0, metric=501
>2d18h: IGRP: Update contains 2 interior, 2 system, and 0 exterior routes.
>2d18h: IGRP: Total routes in update: 4
>
>-----Original Message-----
>From: Roman Rodichev [mailto:rodic000@hotmail.com]
>Sent: 02 June 2001 04:55
>To: Robert.McCallum@let-it-be-thus.com; ccielab@groupstudy.com
>Subject: Re: Bootcamp Lab 17 - IGRP issues
>
>
>I haven't tried this lab.
>
>R6 redistributes OSPF 15dot routes into IGRP. IGRP on R6 will attempt to
>send them across 10dot link as a 15.0.0.0/8 route. At the same time you got
>R3 sending the 15.0.0.0/8 route to R6. They both will not accept 15.0.0.0/8
>coming from another neighbor.
>
>Do debugging on IGRP, you should see both routers denying that route.
>
> >From: "McCallum, Robert" <Robert.McCallum@let-it-be-thus.com>
> >Reply-To: "McCallum, Robert" <Robert.McCallum@let-it-be-thus.com>
> >To: "'Ccielab' (E-mail)" <ccielab@groupstudy.com>
> >Subject: Bootcamp Lab 17 - IGRP issues
> >Date: Fri, 1 Jun 2001 15:23:21 +0100
> >
> >Hi,
> >
> >On Bootcamp lab 17 I have an issue with IGRP and the loopback addresses.
> >Scenario below:-
> >
> >Router 8 from the bootcamp lab 17 is actually Router3 in mine.
> >Router 6 from the bootcamp lab is router6 in my lab.
> >
> >SO
> >
> >Router3 has loopback address of 15.15.3.3
> >
> >It is running IGRP process 1 and has network 15.0.0.0 command in it. Now
> >ignoring all the ospf redistribution etc the loopback is not showing up
>on
> >router 6. Consigs and IP routing tables below:
> >
> >ROUTER 3.
> >
> >interface Loopback0
> > ip address 15.15.3.3 255.255.255.0
> > ip directed-broadcast
> >!
> >interface Serial0/0
> > description link to R6
> > ip address 10.1.10.3 255.255.255.0
> > no ip directed-broadcast
> > no ip mroute-cache
> > no fair-queue
> >
> >interface Virtual-TokenRing10
> > ip address 172.27.1.1 255.255.255.0
> > no ip directed-broadcast
> > ring-speed 16
> >!
> >interface Virtual-TokenRing11
> > ip address 172.27.2.1 255.255.255.0
> > no ip directed-broadcast
> > ring-speed 16
> >!
> >router igrp 1
> > network 10.0.0.0
> > network 15.0.0.0
> > network 172.27.0.0
> >!
> >ip classless
> >ip default-network 200.200.200.0
> >
> >IP ROUTING TABLE OF R3
> >I* 200.200.200.0/24 [100/9476] via 10.1.10.6, 00:00:27, Serial0/0
> >I 1.0.0.0/8 [100/9476] via 10.1.10.6, 00:00:27, Serial0/0
> > 172.27.0.0/24 is subnetted, 2 subnets
> >C 172.27.2.0 is directly connected, Virtual-TokenRing11
> >C 172.27.1.0 is directly connected, Virtual-TokenRing10
> > 10.0.0.0/24 is subnetted, 4 subnets
> >I 10.1.11.0 [100/9476] via 10.1.10.6, 00:00:27, Serial0/0
> >C 10.1.10.0 is directly connected, Serial0/0
> >C 10.3.1.0 is directly connected, Virtual-TokenRing1
> >C 10.2.1.0 is directly connected, TokenRing0/0
> > 15.0.0.0/24 is subnetted, 1 subnets
> >C 15.15.3.0 is directly connected, Loopback0
> >
> >
> >CONFIG OF R6.
> >
> >interface Serial0/0
> > description link to R3
> > ip address 10.1.10.6 255.255.255.0
> > clockrate 128000
> >!
> >router ospf 1
> > redistribute igrp 1 metric 33 subnets
> > network 10.1.5.0 0.0.0.7 area 10
> > network 15.15.6.0 0.0.0.255 area 10
> >!
> >router igrp 1
> > redistribute ospf 1 metric 2000 1000 255 100 1500
> > network 10.0.0.0
> >
> >
> >IP ROUTING TABLE OF R6.
> >
> >O IA 200.200.200.0/24 [110/855] via 10.1.5.1, 01:29:13, Ethernet0/0
> > 1.0.0.0/32 is subnetted, 1 subnets
> >O E2 1.1.1.1 [110/100] via 10.1.5.1, 01:29:13, Ethernet0/0
> >I 172.27.0.0/16 [100/8976] via 10.1.10.3, 00:00:06, Serial0/0
> > 10.0.0.0/8 is variably subnetted, 10 subnets, 5 masks
> >O E2 10.1.11.0/24 [110/100] via 10.1.5.1, 01:29:13, Ethernet0/0
> >O IA 10.1.11.1/32 [110/10] via 10.1.5.1, 01:29:13, Ethernet0/0
> >C 10.1.10.0/24 is directly connected, Serial0/0
> >O IA 10.1.11.2/32 [110/74] via 10.1.5.1, 01:29:14, Ethernet0/0
> >O IA 10.1.11.8/32 [110/74] via 10.1.5.1, 01:29:14, Ethernet0/0
> >I 10.3.1.0/24 [100/8976] via 10.1.10.3, 00:00:08, Serial0/0
> >I 10.2.1.0/24 is possibly down,
> > routing via 10.1.10.3, Serial0/0
> >C 10.1.5.0/29 is directly connected, Ethernet0/0
> >O E2 10.40.0.0/16 [110/100] via 10.1.5.1, 01:29:15, Ethernet0/0
> >O E2 10.1.12.192/28 [110/100] via 10.1.5.1, 01:29:15, Ethernet0/0
> > 15.0.0.0/8 is variably subnetted, 7 subnets, 2 masks
> >O IA 15.15.99.99/32 [110/856] via 10.1.5.1, 01:29:15, Ethernet0/0
> >O IA 15.15.8.8/32 [110/75] via 10.1.5.1, 01:29:15, Ethernet0/0
> >O IA 15.15.7.7/32 [110/856] via 10.1.5.1, 01:29:15, Ethernet0/0
> >O 15.15.4.4/32 [110/11] via 10.1.5.4, 01:29:15, Ethernet0/0
> >O E2 15.15.1.0/24 [110/100] via 10.1.5.1, 01:29:15, Ethernet0/0
> >O E2 15.15.5.0/24 [110/44] via 10.1.5.1, 01:29:15, Ethernet0/0
> >C 15.15.6.0/24 is directly connected, Loopback0
> >
> >IP ROUTING TABLE FOR R6 with the command show ip route igrp
> >
> >R6#i igrp
> >I 172.27.0.0/16 [100/8976] via 10.1.10.3, 00:00:23, Serial0/0
> > 10.0.0.0/8 is variably subnetted, 10 subnets, 5 masks
> >I 10.3.1.0/24 [100/8976] via 10.1.10.3, 00:00:23, Serial0/0
> >I 10.2.1.0/24 is possibly down,
> > routing via 10.1.10.3, Serial0/0
> >
> >NOTE THE DISTINCT LACK OF THE 15.15.3.3 network.
> >
> >My only question is WHY?
> >Robert McCallum
> >**Please read:http://www.groupstudy.com/list/posting.html
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