ospf over IPSec

[Eric W. Bates]

I have to try and get OSPF working over an ESP tunnel. The idea is to 
allow graceful fall over between a dedicated T1 and a backup tunnel over 
the Internet.

I just realized that without an esp0 interface in ifconfig, and without 
the IPSec associations accessible in the routing table, I have no idea 
whether this is even possible.

Has anyone successfully used OSPF over a tunnel?

Can you recommend a routing program?  We've been very happy with zebra 
over the years; but I understand OpenOSPF and Quagga might be the 
current favorites.

Thanks for your time.

-- 
Eric W. Bates
ericx at vineyard.net