Eric Masson:
>I'm experimenting dynamic routing protocols in a vpn setup. Ipsec tunnel
>mode is not applicable here as selectors do not appear in system routing
>table.

I think the problem is that you need multicasts to exchange routing
updates through the tunnel. If I am not mistaken that is supported with
gif interfaces as well. Maybe you could do away with gif?

>On destination box, tcpdump shows incoming ipsec gre transformed
>packets, but these packets don't make their way to internal interface,
>and are silently dropped (no log anywhere)

This is odd. Do you have a chance to test this against another IPSec
box, e.g. a Cisco router configured with a GRE Tunnel interface?

Helge
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