HI, I have trying to setup MS PPTP server (192.168.10.11) behind a linux firewall. I used the following scripts eth0 is connected to the internet, eth1 is connected to PPTP server. echo 1 > /proc/sys/net/ipv4/ip_forward Iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 1723 -j DNAT --to 192.168.10.11 iptables -t nat -A PREROUTING -i eth0 -p 47 -j DNAT --to 192.168.10.11 it doesn't seem to work. is there anything I missed? My kernel is 2.4.18-14. please help thanks arnold