Good morning everyone... 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 -P FORWARD ACCEPT iptables -P INPUT ACCEPT iptables -P OUTPUT ACCEPT 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 the mail server from this host. My kernel is 2.6.19.2 with iptables 1.3.7 I also used these rules with kernel 2.4.34 and nothing. Thanks in advanced for any comments. Cheers, Rafael
