OSPF and BGP

From: Nathan Chessin (nchessin@cisco.com)
Date: Fri Nov 08 2002 - 05:10:18 GMT-3


Hi All,

My routing and BGP tables look like the below. Question is, why isn't the
BGP route being installed as valid. I have routes to next-hop and also the
networks in the bgp table.

I read that If the matching route is learned from an OSPF neighbor, its OSPF
router ID must match the BGP router ID of the iBGP neighbor.
I tried changing those and still no luck.

Any ideas

(AS 2) (AS 2)
  R3 ----iBGP---- R5

R5 output below...

Gateway of last resort is not set

     34.0.0.0/24 is subnetted, 1 subnets
O IA 34.1.1.0 [110/112] via 35.1.1.3, 00:00:22, Serial2/0
     1.0.0.0/16 is subnetted, 1 subnets
O E2 1.1.0.0 [110/50] via 35.1.1.3, 00:00:22, Serial2/0
     35.0.0.0/24 is subnetted, 1 subnets
C 35.1.1.0 is directly connected, Serial2/0
O IA 2.0.0.0/8 [110/113] via 35.1.1.3, 00:00:22, Serial2/0
     100.0.0.0/24 is subnetted, 1 subnets
O E1 100.100.100.0 [110/132] via 35.1.1.3, 00:00:22, Serial2/0
     3.0.0.0/32 is subnetted, 1 subnets
O 3.3.3.3 [110/49] via 35.1.1.3, 00:00:23, Serial2/0
     12.0.0.0/24 is subnetted, 1 subnets
O 12.1.1.0 [110/112] via 35.1.1.3, 00:00:23, Serial2/0
R5#sib
BGP table version is 1, local router ID is 33.33.33.33
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
* i1.1.0.0/16 12.1.1.1 23 100 0 1 ?
* i100.100.100.0/24 12.1.1.1 23 100 0 1 ?

Nate



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