BGP help

Unanswered Question
Aug 3rd, 2010
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Hi All


I have got 3 router A-->B--->C , I need to establish ebg neigbor between router A( RID :10.10.10.1 AS 64512) -->C ( RD :172.16.1.2 AS 65102 )


connection

rtr A to rtr B ----> int fast 0/0 to int fast 0/0 ( 10.10.10.0/30)


rtr B to rtc -----> int fast 0/1 to int fast 0/1 ( 172.16.1.0/30)


to accomplish bgp connection

from rtr A i need to point static route 172.16.1.0 255.255.255.252 10.10.10.2


similarly from rtr c i need point static route 10.10.10.0 255.255.255.252 172.16.1.2


Is there any other way apart from static route my ebg neigbor realtion will form between these both router .


Similarly if i use


bridge IRB at router B this is will isolate need for two IP subnet  , but my IP subnet 10.10.10.0/30 should be increased to 10.10.10.0/28 and also  there is no need  for static route at both router .


else suggest me how crb can be used over here if use 10.10.10.0/30


which will be best solution for this setup

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west33637 Tue, 08/03/2010 - 13:05
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Hello Sanvaishu. advertise the networks in BGP. Then you can get rid of the static routes.


On router c

router bgp 65102
neighbor 10.10.10.1 remote-as 64512
neighbor 10.10.10.1 ebgp-multihop
network 172.16.1.0 255.255.255.252



On router A

router bgp 64512
neighbor 172.16.1.2 remote-as 65102
neighbor 172.16.1.2 ebgp-multihop
network 10.10.10.0 255.255.255.252



please remember to rate this post if it helps

milan.kulik Wed, 08/04/2010 - 00:43
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Hi,


IMHO, this will not work.

neighbor ... ebgp-multihop

is correct, but you need to know how to route to a BGP neighbor BEFORE the BGP session is established.

The static routes mentioned in the original question are a correct and easiest way.


BR,

Milan

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