DNAT doesn't work???

[Jeremy Lunn]

On Thu, Jul 12, 2001 at 10:25:35PM -0400, Mon Oncle wrote:
> when I issue "netstat -an" I doesn't see my system listening on port 81 and I can't query port 81.

>From what I understand, DNAT doesn't listen on any port.  You won't see
it with netstat -an.  Netfilter rewrites the packets coming in so that
the destination address becomes the machine on your internal LAN.  It
also seems that you can't rewrite a packet coming in on the same
interface as you want it to go out on.  

If you tried to test it on your internal LAN then test it from a host 
on a different network and it should work.

-- 
Jeremy Lunn
Melbourne, Australia