[UFO Chicago] NAT in 2.6

[David Horton]

Ian Bicking wrote:
> Hi UFOers.  Long time no see.  But I fear I come to you with ulterior 
> motives.
> 
> In some upgrade on my Debian Unstable box my 2.4 kernel broke with 
> respect to my sound card, upsetting my otherwise happy world.  After 
> trying all sorts of things, I eventually got a 2.6 stock Debian kernel 
> to work with the sound card.  But then my NAT stopped working.  I think 
> that's all changed for 2.6, so maybe I just need to revisit it entirely. 
>  So I come to you!
> 
> Right now I have a script in /etc/init.d/ipmasq, that just runs 
> /usr/sbin/ipmasq, and I think by some magic I configured it at one time, 
> though the stuff in /etc/ipmasq certainly isn't my doing.  I don't want 
> to do anything fancy, just simple NAT, not passing through any incoming 
> connections, very simple.  What's the best way to go about this?  There 
> seems to be a couple packages in Debian, and maybe more if I knew what 
> the proper term was these days (like: did ipchains obsolete iptables, or 
> the other way around?)
> 
> So what you recommend?
> 
> Thanks...


The latest and greatest is iptables.  I have not used the NAT feature, 
but there is a NAT HOWTO on the netfilter site. 
[http://www.netfilter.org/documentation/index.html]

Dave