On Feb 28 2007 10:33, Rafael Paris wrote: > > I have been trying to have access to my internal mail server from > internet but always get connection timed out. > This is a very short set of rules being used for testing purposes with > no success: > > iptables -t nat -A PREROUTING -p tcp -i ppp0 -d <external_fixed_ip> > --dport 110 -j DNAT --to-destination <internal_ip:110> > iptables -t nat -A PREROUTING -p tcp -i ppp0 -d <external_fixed_ip> > --dport 25 -j DNAT --to-destination <internal_ip:25> > > iptables -t nat -A POSTROUTING -o ppp0 -j SNAT --to <external_fixed_ip> > > I'm using one ethernet device with my lan ip address and I can reach ^^^ There in lies your problem. All packets that came after the first one don't even pass your box. Jan --