On Mon, May 21, 2007 at 10:21:26AM +0100, Darren J Moffat wrote:
<SNIP!>
> Does allowing NAT-T with port other than UDP 4500 open up the 
> possibility of using IPsec with NAT as a client in a network that only 
> has say 80 and 443 open for external connections ?

Not unless those opens apply to *UDP* 80 and/or 443.  Doing NAT-T over TCP is
a whole new can of worms.  :-P

> If so I think that is worth doing even if the current in.iked can't make 
> use of this.  Someone (say a GSoC 2007 student) might be able to make 
> use of this in porting say Racoon2 ?

Like I said, the kernel changes aren't much for arbitrary UDP ports, and
every local port you want only needs a corresponding socket bound to that
port with UDP_NAT_T_ENDPOINT set for proper inbound demuxing.

Thanks,
Dan
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