[ale] port forwarding help

[Chris Ricker]

On Thu, 3 Apr 2003, Michael D. Hirsch wrote:

> This seems simple, but I've been thumping my head against if for a while 
> now.  All I want to do is forward anything to port xx to machine y.y.y.y.
> 
> From reading docs it looks like all I need this:
> 
> iptables -t nat -A PREROUTING -p tcp --dport xx -j DNAT --to y.y.y.y:xx

that's fine

> I have made sure that port forwarding is turned on.
> 
> I test by telnetting to port xx on the forwarding box, but never get a 
> connection.
> 
> One other possible complication, do I need to worry that I have only 1 nic 
> card?  So on my test box all the traffic is really on one network.  In 
> production, of course, I will use multiple network cards.

bring up a virtual interface and forward it (rather than the IP you've 
configured on the real interface)

that still might not work, but it's more likely to ;-)

later,
chris
_______________________________________________
Ale mailing list
Ale at ale.org
http://www.ale.org/mailman/listinfo/ale