Re: site to site vpn and routing protocol

All you need is a L3 interface on each end for the adjacencies. That's why GRE over IPSEC enables dynamic protocols.

If you are peering over IPSEC, what L3 interfaces is it using? Is it going over the tunnel for the peering?

Regards,
Jay McMickle- CCIE #35355 (RS)
Sent from my iPhone 5

On Dec 9, 2012, at 3:35 AM, Ovais Iqbal <ovais.iqball_at_yahoo.com> wrote:

> Hi all,
>
>
> I was under the impression that if i have 2 routers connected back to back and i run ipsec over it, routing protocols wont work. That was the main reason we use GRE. But now when i reconfigured it on GNS3 and on real routers (1841), i saw that neighbor adjcancies are working fine for all protocols. So its a bit surprising for me
>
>
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Received on Sun Dec 09 2012 - 07:01:09 ART