IGRP will automatically summarize the route to the classful boundary since it has no connections to that network. If you look at the route table in Chuck's last message, you will see a classful route to the 10.0.0.0 network.
""Hunt Lee"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Ok - on Router C (the redistribution router - I changed the network > statement from network 192.168.1.18 0.0.0.0 area 0 to network 192.168.1.0 > 0.0.0.255 area 0 and everything works straight away :) > > However, the more puzzling thing is that without any Ip route and > Summary-address from Router C (to summarize the OPSF routes before > redistributing them into IGRP), how come Router D can still see the routes > from OSPF? I thought that it shouldn't be able to see any OSPF routes as > they are from /28 subnets..... - apart from the Router A since it is /24. > > Help!!! > > Hunt > > > ""Chuck Larrieu"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Like Stefan Dozier, I too recreated this on my pod, and I am unable to > > duplicate your problem. I was wrong - IGRP will see the 192.168.1.0/24 > > subnet come in. As you can see from my Router D table, all the routes are > > there. I am able to ping from all routers to al other routers. > > > > I 10.0.0.0/8 [100/8976] via 192.168.2.49, 00:00:44, Serial1 > > I 192.168.1.0/24 [100/8726] via 192.168.2.49, 00:00:44, Serial1 > > 192.168.2.0/28 is subnetted, 1 subnets > > C 192.168.2.48 is directly connected, Serial1 > > R5# router D > > > > The only other thing that comes to mind, seeing as you have a number of > > different IOS versions on your various routers, and the way you are doing > > your network statements, is a bug I heard about on the CCIE list a while > > back - something about redistribution problems when using the 0.0.0.0 mask > > in the OSPF process when assigning interfaces. I did a bit of searching, > but > > I am unable to locate any further information. > > > > Chuck > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > Hunt Lee > > Sent: Thursday, December 06, 2001 11:35 PM > > To: [EMAIL PROTECTED] > > Subject: Redistribution Question [7:28374] > > > > > > I need some help on a Redistribution question: > > > > I have setup 4 routers: > > > > Router A - Router B - Router C - Router D > > > > A, B & C are running OSPF, and C & D are running IGRP - I'm trying to > > redistribute between OSPF & IGRP routes: > > > > A is connected to B with 10.1.1.100 / 24 - Serial 0 > > > > B is connected to A with 10.1.1.1 / 24 - Serial 0 > > B is connected to C with 192.168.1.17 /28 - Serial 1 > > > > C is connected to B with 192.168.1.18 / 28 - Serial 0 > > C is connected to D with 192.168.2.49 / 28 - Serial 1 > > > > D is connected to C with 192.168.2.50 / 28 - Serial 0 > > > > However, I could only ping from D to A (& vice versa), but I couldn't ping > > from B to D, or D to B > > N.B: D to C (and vice versa) is fine as they are directly connected > > > > Any help will be greatly appreciated. > > > > Thanks in advance, > > > > Hunt Lee > > > > > > Below are the configs for the routers: > > > > Router A > > version 11.0 > > > > service udp-small-servers > > > > service tcp-small-servers > > > > ! > > > > hostname RouterA > > > > ! > > > > ! > > > > no ip domain-lookup > > > > ! > > > > interface Ethernet0 > > > > no ip address > > > > shutdown > > > > ! > > > > interface Serial0 > > > > no ip address > > > > no fair-queue > > > > clockrate 64000 > > > > ! > > > > interface Serial1 > > > > ip address 10.1.1.100 255.255.255.0 > > > > clockrate 64000 > > > > ! > > > > router ospf 100 > > > > network 10.1.1.100 0.0.0.0 area 1 > > > > ! > > > > ip host RouterB 10.1.1.1 > > > > ip host RouterC 192.168.1.18 > > > > ip host RouterD 192.168.2.50 > > > > ! > > > > line con 0 > > > > line aux 0 > > > > transport input all > > > > line vty 0 4 > > > > login > > > > ! > > > > end > > > > > > Router B > > version 11.0 > > > > service udp-small-servers > > > > service tcp-small-servers > > > > ! > > > > hostname RouterB > > > > ! > > > > no ip domain-lookup > > > > ! > > > > interface Ethernet0 > > > > no ip address > > > > shutdown > > > > ! > > > > interface Serial0 > > > > ip address 192.168.1.17 255.255.255.240 > > > > no fair-queue > > > > ! > > > > interface Serial1 > > > > ip address 10.1.1.1 255.255.255.0 > > > > ! > > > > router ospf 100 > > > > network 192.168.1.17 0.0.0.0 area 0 > > > > network 10.1.1.1 0.0.0.0 area 1 > > > > ! > > > > ip host RouterA 10.1.1.100 > > > > ip host RouterC 192.168.1.18 > > > > ip host RouterD 192.168.2.50 > > > > ! > > > > line con 0 > > > > line aux 0 > > > > transport input all > > > > line vty 0 4 > > > > login > > > > ! > > > > end > > > > > > > > Router C > > > > version 12.0 > > > > service timestamps debug uptime > > > > service timestamps log uptime > > > > no service password-encryption > > > > ! > > > > hostname RouterC > > > > ! > > > > ! > > > > ip subnet-zero > > > > no ip domain-lookup > > > > ip host RouterA 10.1.1.100 > > > > ip host RouterB 192.168.1.17 > > > > ip host RouterD 192.168.2.50 > > > > > > > > ! > > > > interface Ethernet0 > > > > no ip address > > > > no ip directed-broadcast > > > > shutdown > > > > ! > > > > interface Serial0 > > > > ip address 192.168.1.18 255.255.255.240 > > > > no ip directed-broadcast > > > > no ip mroute-cache > > > > no fair-queue > > > > clockrate 64000 > > > > ! > > > > interface Serial1 > > > > ip address 192.168.2.49 255.255.255.240 > > > > no ip directed-broadcast > > > > clockrate 64000 > > > > ! > > > > interface BRI0 > > > > no ip address > > > > no ip directed-broadcast > > > > shutdown > > > > ! > > > > router ospf 100 > > > > redistribute igrp 200 metric-type 1 subnets > > > > network 192.168.1.18 0.0.0.0 area 0 > > > > default-metric 10 > > > > ! > > > > router igrp 200 > > > > redistribute ospf 100 > > > > network 192.168.2.0 > > > > default-metric 10000 100 255 1 1500 > > > > ! > > > > ip classless > > > > ip route 192.168.1.0 255.255.255.0 Null0 > > > > ! > > > > line con 0 > > > > transport input none > > > > line aux 0 > > > > line vty 0 4 > > > > login > > > > ! > > > > end > > > > > > > > Router D > > > > version 12.1 > > > > service timestamps debug uptime > > > > service timestamps log uptime > > > > no service password-encryption > > > > ! > > > > hostname RouterD > > > > !! > > > > ip subnet-zero > > > > no ip finger > > > > no ip domain-lookup > > > > ip host RouterC 192.168.1.49 > > > > ip host RouterB 192.168.1.17 > > > > ip host RouterA 10.1.1.100 > > > > ! > > > > interface Ethernet0 > > > > no ip address > > > > shutdown > > > > ! > > > > interface Serial0 > > > > ip address 192.168.2.50 255.255.255.240 > > > > no fair-queue > > > > ! > > > > interface Serial1 > > > > no ip address > > > > shutdown > > > > ! > > > > router igrp 200 > > > > network 192.168.2.0 > > > > ! > > > > ip classless > > > > ip http server > > > > ! > > > > line con 0 > > > > exec-timeout 0 0 > > > > transport input none > > > > line 1 16 > > > > line aux 0 > > > > line vty 0 4 > > > > login > > > > ! > > > > end Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28664&t=28374 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
