Advanced Cisco BGP features: Selective Next-hop

Below topology was used for this post, and all the configuration happened on two Cisco CSR1000v

topo-2routers-dual-link

BGP Selective Next-hop Route filtering

Imagine that you want to accept routes only from peers, which the route covering the next-hop passes specific conditions, such as prefix-length, or protocol.

In the following configuration I will only accept routes from peers, which the route covering the next-hop has a mask of less-equal to 24:

Let’s see the current BGP table:

Continue reading “Advanced Cisco BGP features: Selective Next-hop”

Share this!