[c-nsp] BGP connection and default route

[Stephen Kratzer]

On Wednesday 20 August 2008 15:51:34 Pinaev, Andrey wrote:
> Hi, ALL
>
> When RIB has only default route and hasn't any NH prefixes, BGP doesn't
> establish connections.
>
> What nature of this restriction in IOS?
>
>
>
> Andy Pinaev.

If you're running iBGP or eBGP with ebgp-multihop, the neighbors need to have 
a route (static, connected, or IGP) between them. It's important that the BGP 
session is established across the intended interface. IOS enforces this by 
not allowing locally-generated BGP messages to follow a default route (or 
something to that effect).

Stephen Kratzer
Network Engineer
CTI Networks, Inc.