Re: IPIP Tunnelling.
Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 14 Aug 1997 22:16:36 +0100 (BST)
> Hmmm. Setting the ttl to the same as in the encapsulated packet kills
> traceroute a bit. Why can't we just refuse to IP-encapsulate any packets which
> are already IP-encapsulated?
Becuase we might legally be doing it. Secure IP tunnels over IP mobile do this
for example.