Hello,

This is a normal behavior for iBGP. BGP router does not advertise routes received from one iBGP router to another iBGP router to prevent routing loops.

There are 2 ways to fix it:
1. Full BGP mesh between all iBGP routers (A-B, A-C, B-C)
2. To configure router B as a route reflector.



I have three BIRD routers:
A uses iBGP only
B also only uses iBGP
C uses eBGP and iBGP

They are connected as follows:
A<->B<->C (all via iBGP)

The goal is to allow A to announce routes to B, have B redistribute the route to C and have C announce it to the peers. 

The issue is that B receives the route (and adds it to the kernel) however it does not send it to C.

Any ideas how to fix this?


Matthias Merkel
CTO  BoltN Hosting Limited
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Phone +498941207255 Mobile +4915752259219 
Email matthias@boltn-hosting.com Skype matthias_merkel1 
 
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