does anybody know if the following is possible.........
1. I have server X (just a made up name) with an iBGP session to a Cisco router.
2. Server X announces routes to the router with no-advertise and no-export communities set - the router enforces this with an inbound route-map.
3. The router has an iBGP session with a route log server as well a many other iBGP sessions to other routers.
Q. When the router receives a route with the communities set as in 2 from server X, is it possible to make the router advertise this route only to the route log server (for route audit purposes) but to honour the no-advertise community for all other iBGP peerings?
It is not possible to make the server iBGP peer directly with the route log server because the server X cannot be trusted.
Ideally, I don't want to be putting lots of outbound filters on all of the routers iBGP peerings.
>> Q. When the router receives a route with the communities set as in 2 from server X, is it possible to make the router advertise this route only to the route log server (for route audit purposes) but to honour the no-advertise community for all other iBGP peerings?
you should remove the no-advertise community on the inbound route-map when the prefix is received, but then you need to use a route-filter to avoid to send it to all other iBGP peers.
So the short answer should be no without route-filters or all iBGP receive it for the inbound removal of no-advertise or none will receive it if you leave the no-advertise community untouched
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...