[c-nsp] advertising a route not in IGP

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Thu Sep 23 11:37:23 EDT 2010


> I interchange BGP with vendors off the vendor switches.
> The internal IGP has a bunch of routes. The vendor mesh has a ip eigrp
> summary on its interfaces towards the internal mesh that aggregates
> whole into a /16 (
> One vendor I need to connect to, I need to advertise a specific /24
> ( to the eBGP neighbor. OF course BGP won't advertise
> route to the eBGP neighbor because the /24 isn't in IGP, only the /16
> summary.

you should be able to use the "bgp inject-map" feature/command to
achieve this, check out "BGP Conditional Route Injection" feature
description at


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