Port forwarding

Andy ag1234 at carmen.se
Wed Jan 19 08:49:34 UTC 2005

David Hoffman wrote:
 > Unless he has a multi-homed system with more than one interface on the
 > internet, I'm not sure that forwarding/routing will work.

It works, I even tested this. There is no reason for it not working even 
  on one interface, provided that:
- you accept port 80 connections,
- you enabled forwarding (echo "1" > /proc/sys/net/ipv4/ip_forward),
- you use both lines in my original posting (DNAT and SNAT),
- you have a route from this computer to the real http server (the 
default route is sufficient if you're able to reach the http server from 
the forwarding computer).


More information about the users mailing list