Redistribution: OSPF to IGRP [7:3983]
Here is my problem: The major network is 172.17.0.0 (OSPF domain with /28, /29, /30) R2 -IGRP link/28-- R4 (IGRP domain /28) Mutual redistribution at R1... knowing that I have only 1 network (variably subnetted) how can I get a "default network" in R2 and make the whole network reachable from R4 ? r2#sho ip rou Gateway of last resort is not set 172.17.0.0/16 is variably subnetted, 9 subnets, 3 masks C 172.17.59.0/28 is directly connected, Serial0/0 C 172.17.59.16/28 is directly connected, BRI0/0 C 172.17.59.32/28 is directly connected, FastEthernet0/0 C 172.17.59.48/28 is directly connected, Serial0/1 O IA172.17.59.64/28 [110/112] via 172.17.59.3, 07:50:24, Serial0/0 I 172.17.59.80/28 [100/8576] via 172.17.59.50, 00:01:04, Serial0/1 O IA172.17.59.96/29 [110/70] via 172.17.59.3, 07:50:24, Serial0/0 O IA172.17.59.108/30 [110/118] via 172.17.59.3, 07:50:25, Serial0/0 O IA172.17.59.104/30 [110/65] via 172.17.59.1, 07:50:25, Serial0/0 r4#sho ip rou Gateway of last resort is not set 172.17.0.0/28 is subnetted, 6 subnets I 172.17.59.0 [100/10476] via 172.17.59.49, 00:00:18, Serial0 I 172.17.59.16 [100/160250] via 172.17.59.49, 00:00:18, Serial0 I 172.17.59.32 [100/8486] via 172.17.59.49, 00:00:18, Serial0 C 172.17.59.48 is directly connected, Serial0 I 172.17.59.64 [100/8576] via 172.17.59.49, 00:00:18, Serial0 C 172.17.59.80 is directly connected, Ethernet0 Philip G. Virnoche Sr. Network Engineer - AT&T Wireless phone: 425.580.5239 cell: 206.601.3134 "HAM AND EGGS - A day's work for a chicken; A lifetime commitment for a pig." Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=3983&t=3983 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Redistribution: OSPF to IGRP [7:3983]
I'm gonna take a shot: On R2 if you add: ip route 172.17.59.96 255.255.255.240 null 0 and under igrp add: redistribute static R4 should get the 172.17.59.96/28 route and send the traffic to R2. Once it gets to R2 the more specific routes with the /29 & /30 masks should forward it into the OSPF domain. I'm pretty sure this will do it.. :) DaveC "Virnoche, Phil" wrote: > > Here is my problem: > > The major network is 172.17.0.0 > (OSPF domain with /28, /29, /30) R2 -IGRP link/28-- R4 (IGRP domain > /28) > > Mutual redistribution at R1... knowing that I have only 1 network (variably > subnetted) how can I get a "default network" in R2 and make the whole > network reachable from R4 ? > > r2#sho ip rou > Gateway of last resort is not set > > 172.17.0.0/16 is variably subnetted, 9 subnets, 3 masks > C 172.17.59.0/28 is directly connected, Serial0/0 > C 172.17.59.16/28 is directly connected, BRI0/0 > C 172.17.59.32/28 is directly connected, FastEthernet0/0 > C 172.17.59.48/28 is directly connected, Serial0/1 > O IA172.17.59.64/28 [110/112] via 172.17.59.3, 07:50:24, Serial0/0 > I 172.17.59.80/28 [100/8576] via 172.17.59.50, 00:01:04, Serial0/1 > O IA172.17.59.96/29 [110/70] via 172.17.59.3, 07:50:24, Serial0/0 > O IA172.17.59.108/30 [110/118] via 172.17.59.3, 07:50:25, Serial0/0 > O IA172.17.59.104/30 [110/65] via 172.17.59.1, 07:50:25, Serial0/0 > > r4#sho ip rou > > Gateway of last resort is not set > > 172.17.0.0/28 is subnetted, 6 subnets > I 172.17.59.0 [100/10476] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.16 [100/160250] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.32 [100/8486] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.48 is directly connected, Serial0 > I 172.17.59.64 [100/8576] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.80 is directly connected, Ethernet0 > > Philip G. Virnoche > Sr. Network Engineer - AT&T Wireless > phone: 425.580.5239 > cell: 206.601.3134 > > "HAM AND EGGS - A day's work for a chicken; A lifetime commitment for a > pig." > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4002&t=3983 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Redistribution: OSPF to IGRP [7:3983]
On Thu, 10 May 2001, Virnoche, Phil wrote: > Here is my problem: > > The major network is 172.17.0.0 > (OSPF domain with /28, /29, /30) R2 -IGRP link/28-- R4 (IGRP domain > /28) > > Mutual redistribution at R1... knowing that I have only 1 network (variably > subnetted) how can I get a "default network" in R2 and make the whole > network reachable from R4 ? Can you post the ospf/igrp config portions for each router > > > r2#sho ip rou > Gateway of last resort is not set > > 172.17.0.0/16 is variably subnetted, 9 subnets, 3 masks > C 172.17.59.0/28 is directly connected, Serial0/0 > C 172.17.59.16/28 is directly connected, BRI0/0 > C 172.17.59.32/28 is directly connected, FastEthernet0/0 > C 172.17.59.48/28 is directly connected, Serial0/1 > O IA172.17.59.64/28 [110/112] via 172.17.59.3, 07:50:24, Serial0/0 > I 172.17.59.80/28 [100/8576] via 172.17.59.50, 00:01:04, Serial0/1 > O IA172.17.59.96/29 [110/70] via 172.17.59.3, 07:50:24, Serial0/0 > O IA172.17.59.108/30 [110/118] via 172.17.59.3, 07:50:25, Serial0/0 > O IA172.17.59.104/30 [110/65] via 172.17.59.1, 07:50:25, Serial0/0 > > r4#sho ip rou > > Gateway of last resort is not set > > 172.17.0.0/28 is subnetted, 6 subnets > I 172.17.59.0 [100/10476] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.16 [100/160250] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.32 [100/8486] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.48 is directly connected, Serial0 > I 172.17.59.64 [100/8576] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.80 is directly connected, Ethernet0 > > > > Philip G. Virnoche > Sr. Network Engineer - AT&T Wireless > phone: 425.580.5239 > cell: 206.601.3134 > > "HAM AND EGGS - A day's work for a chicken; A lifetime commitment for a > pig." > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- We have MOVED!! Make note of our new address!!! I'm buying / selling used CISCO gear!! email me for a quote Brian Feeny,CCDP,CCNP+VAS Scarlett Parria [EMAIL PROTECTED] [EMAIL PROTECTED] 318-213-4709 318-213-4701 Netjam, LLC http://www.netjam.net 333 Texas St. VISA/MC/AMEX/COD Suite 140130 day warranty Shreveport, LA 71101 Cisco Channel Partner p: 318-212-0245 f: 318-212-0246 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4006&t=3983 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Redistribution: OSPF to IGRP [7:3983]
Hi; By using summary-address under OSPF routing configuration that I consider it is one of workable solution. So the IGRP can reach the OSPF variable subnet that I believe. Correct me if I am wrong. HTH Vincent Chong ""Virnoche, Phil"" Here is my problem: > > The major network is 172.17.0.0 > (OSPF domain with /28, /29, /30) R2 -IGRP link/28-- R4 (IGRP domain > /28) > > Mutual redistribution at R1... knowing that I have only 1 network (variably > subnetted) how can I get a "default network" in R2 and make the whole > network reachable from R4 ? > > > r2#sho ip rou > Gateway of last resort is not set > > 172.17.0.0/16 is variably subnetted, 9 subnets, 3 masks > C 172.17.59.0/28 is directly connected, Serial0/0 > C 172.17.59.16/28 is directly connected, BRI0/0 > C 172.17.59.32/28 is directly connected, FastEthernet0/0 > C 172.17.59.48/28 is directly connected, Serial0/1 > O IA172.17.59.64/28 [110/112] via 172.17.59.3, 07:50:24, Serial0/0 > I 172.17.59.80/28 [100/8576] via 172.17.59.50, 00:01:04, Serial0/1 > O IA172.17.59.96/29 [110/70] via 172.17.59.3, 07:50:24, Serial0/0 > O IA172.17.59.108/30 [110/118] via 172.17.59.3, 07:50:25, Serial0/0 > O IA172.17.59.104/30 [110/65] via 172.17.59.1, 07:50:25, Serial0/0 > > r4#sho ip rou > > Gateway of last resort is not set > > 172.17.0.0/28 is subnetted, 6 subnets > I 172.17.59.0 [100/10476] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.16 [100/160250] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.32 [100/8486] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.48 is directly connected, Serial0 > I 172.17.59.64 [100/8576] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.80 is directly connected, Ethernet0 > > > > Philip G. Virnoche > Sr. Network Engineer - AT&T Wireless > phone: 425.580.5239 > cell: 206.601.3134 > > "HAM AND EGGS - A day's work for a chicken; A lifetime commitment for a > pig." > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4021&t=3983 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Redistribution: OSPF to IGRP [7:3983]
command on r1 so one approach is to summarize in the other areas to a /28. The /29 IA from 59.3 can be summarized as area x range 172.17.96.0 255.255.255.240. The /30 IA from 59.3 can be summarized as area x range 172.17.108.0 255.255.255.240. And the /30 IA from 59.1 can be summarized as area x range 172.16.104.0 255.255.255.240. These three routes should then be propagated to r4. HTH, Fred "Virnoche, Phil" wrote: > > Here is my problem: > > The major network is 172.17.0.0 > (OSPF domain with /28, /29, /30) R2 -IGRP link/28-- R4 (IGRP domain > /28) > > Mutual redistribution at R1... knowing that I have only 1 network (variably > subnetted) how can I get a "default network" in R2 and make the whole > network reachable from R4 ? > > r2#sho ip rou > Gateway of last resort is not set > > 172.17.0.0/16 is variably subnetted, 9 subnets, 3 masks > C 172.17.59.0/28 is directly connected, Serial0/0 > C 172.17.59.16/28 is directly connected, BRI0/0 > C 172.17.59.32/28 is directly connected, FastEthernet0/0 > C 172.17.59.48/28 is directly connected, Serial0/1 > O IA172.17.59.64/28 [110/112] via 172.17.59.3, 07:50:24, Serial0/0 > I 172.17.59.80/28 [100/8576] via 172.17.59.50, 00:01:04, Serial0/1 > O IA172.17.59.96/29 [110/70] via 172.17.59.3, 07:50:24, Serial0/0 > O IA172.17.59.108/30 [110/118] via 172.17.59.3, 07:50:25, Serial0/0 > O IA172.17.59.104/30 [110/65] via 172.17.59.1, 07:50:25, Serial0/0 > > r4#sho ip rou > > Gateway of last resort is not set > > 172.17.0.0/28 is subnetted, 6 subnets > I 172.17.59.0 [100/10476] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.16 [100/160250] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.32 [100/8486] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.48 is directly connected, Serial0 > I 172.17.59.64 [100/8576] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.80 is directly connected, Ethernet0 > > Philip G. Virnoche > Sr. Network Engineer - AT&T Wireless > phone: 425.580.5239 > cell: 206.601.3134 > > "HAM AND EGGS - A day's work for a chicken; A lifetime commitment for a > pig." > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4027&t=3983 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Redistribution: OSPF to IGRP [7:3983]
must be summarized on the 59.3 router. The networks are 172.17.59.104/30, 172.17.59.108/30, and 172.17.59.96/29. These must be summarized to a /28. The key observation is that all three subnets summarize to the same /28 network, 172.17.59.96. Using a "area x range 172.17.59.96 255.255.255.240" summarization on the 59.3 router will put this route in r4's routing table. You will not see the 104 or 108 routes in r4 but they are reachable from r4. The mutual redistribution between IGRP and OSPF has to be on the router attached to the IGRP domain, r2, although you say it is on r1. r2 will have a /30 for 104 from 59.1 and a /28 for .96 from 59.3 (covering the 96 and 108 networks); a ping from r4 will use a longest match on r2 to be routed to either 59.1 or 59.3. (configs were shipped separately) Cheers, Fred. "Virnoche, Phil" wrote: > > Here is my problem: > > The major network is 172.17.0.0 > (OSPF domain with /28, /29, /30) R2 -IGRP link/28-- R4 (IGRP domain > /28) > > Mutual redistribution at R1... knowing that I have only 1 network (variably > subnetted) how can I get a "default network" in R2 and make the whole > network reachable from R4 ? > > r2#sho ip rou > Gateway of last resort is not set > > 172.17.0.0/16 is variably subnetted, 9 subnets, 3 masks > C 172.17.59.0/28 is directly connected, Serial0/0 > C 172.17.59.16/28 is directly connected, BRI0/0 > C 172.17.59.32/28 is directly connected, FastEthernet0/0 > C 172.17.59.48/28 is directly connected, Serial0/1 > O IA172.17.59.64/28 [110/112] via 172.17.59.3, 07:50:24, Serial0/0 > I 172.17.59.80/28 [100/8576] via 172.17.59.50, 00:01:04, Serial0/1 > O IA172.17.59.96/29 [110/70] via 172.17.59.3, 07:50:24, Serial0/0 > O IA172.17.59.108/30 [110/118] via 172.17.59.3, 07:50:25, Serial0/0 > O IA172.17.59.104/30 [110/65] via 172.17.59.1, 07:50:25, Serial0/0 > > r4#sho ip rou > > Gateway of last resort is not set > > 172.17.0.0/28 is subnetted, 6 subnets > I 172.17.59.0 [100/10476] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.16 [100/160250] via 172.17.59.49, 00:00:18, Serial0 > I 172.17.59.32 [100/8486] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.48 is directly connected, Serial0 > I 172.17.59.64 [100/8576] via 172.17.59.49, 00:00:18, Serial0 > C 172.17.59.80 is directly connected, Ethernet0 > > Philip G. Virnoche > Sr. Network Engineer - AT&T Wireless > phone: 425.580.5239 > cell: 206.601.3134 > > "HAM AND EGGS - A day's work for a chicken; A lifetime commitment for a > pig." > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=4201&t=3983 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
