Re: problem with NAT on 2.4

[Mike Fedyk <mfedyk@matchmail.com>]

On Tue, Nov 20, 2001 at 09:11:28PM +0100, Stephan von Krawczynski wrote:
> On Tue, 20 Nov 2001 20:54:43 +0100
> Ricardo Galli <gallir@uib.es> wrote:
> 
> > 
> >  > Does anybody have an idea why NAT in 2.4.10 wouldn't work like NAT in some
> >  > cheap dsl-router equipment regarding http-connections?
> >  > Is there any sense in upgrading to 2.4.15-preX?
> >  > I even tried some gateway software based on windoze that is able to NAT - 
> > and
> >  > it works too! I pretty much ran out of ideas...
> > 
> > Did you disable ECN? (echo 0 > /proc/sys/net/ipv4/tcp_ecn)
> 
> Is 0. I didn't explicitely disable, it only happens to be so.
> 
> > Did you try a connection to port 80 from the Linux box?
> 
> Now this is interesting:
> 
> I try a simple telnet www.thedeadman.com 80 (I will post the publicly available
> servers name if you want me to) and this is what happens:
> 
> not working: (connection fails)
> 2.0.39, some 2.2.18, 2.4.10, 2.4.13, some 2.2.19
> 
> working:
> some 2.2.18, some 2.2.19, 2.4.5, 2.4.15-pre3, 2.4.15-pre7

Did you try running tcpdump on the affected server?