[BGP] - VPN Advertise /32 subnet block

[paulormbsd]

Hello,

I need to advertise 3 blocks /32 on a VPN via BGP, but these block are in a interface subnet /24 on my Cisco ASA.

Example:

CISCO ASA
TunnelXX ( VPN ) - 10.0.0.1/30
GI0/1 - 192.168.0.0/24

In this Cisco ASA i need to announcement 3 productions servers (192.168.0.37, 192.168.0.127 and 192.168.0.133).

I know that i need to add route in RIB to announcement in BGP, but when i put these route to Null0 i can't reachable these servers.

I tested a way, addind the route using the same IP as gateway and works, example: 

route GI0/1 192.168.0.37 255.255.255.255 192.168.0.37

But i am not sure if this is the best way to do that and i want to know if there are other possibilities to do that.

Thanks

[MHM Cisco World]

try redistribute connect if <<this /32 is anyconnect IP>>
because other solution like config static route /32 to null0 make blackhole and traffic is drop in your ASA.

[paulormbsd]

Thanks for answer.

I had enabled to redistribute static and connected routes. But still not announcement.

When you say "connect if <<this /32 is anyconnect IP>>", need i to create the route ? Or because if have the entire network (/24) on my interface the CIsco ASA will announcement the IP /32?

Thanks again

[Gabriela Godoi do Prado]

@paulormbsd primeiramente muito obrigada por sua pergunta.

Estamos na Comunidade Cisco em Português. Sinta-se á vontade para seguir com o tópico em português.

Espero que as soluções te ajudem!

Att,

Gabriela

Community Manager

[paulormbsd]

Obrigado pela informação @Gabriela Godoi do Prado