VTI tunnel & OSPF

[Harutyun Hakobyan]

Hi all,

I have configured VTI tunnel interfaces (tunnel mode ipsec ipv4) and OSPF on that interfaces.

VTI is encrypting all data traffic. But what about OSPF traffic?

Is OSPF traffic encrypted also or I need to configure OSPF authentication?

Thanks

[Andrew Phirsov · Accepted solution]

OSPF exchange is already encrypted inside of the tunnel, so u don't have to use ospf-authentication. OSPF uses tunnel IP addresses for communications, and traffic flow between those two addresses is possible only throught the secure tunnel.