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).

/Andy





More information about the users mailing list