Hey All, I'm sure this has been covered somewhere, but for the life of me cannot find it, The situation is, one box, two nics. nic one -> static IP address, routed through adsl modem. (210.8.131.XXX) (ETH0) nic two -> dhcp'ing 192.168 address --> net interface 192.168.0.1 (ETH1) I can reach the internet from nic one without a problem, but trying to get out from nic two, does not work, I believe it's a problem with it not masquerading correctly... or at all.. My route table <snip> [root@xxxxxxxxxx /]# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 210.8.131.XXX * 255.255.255.240 U 0 0 0 eth0 192.168.0.0 * 255.255.255.0 U 0 0 0 eth1 169.254.0.0 * 255.255.0.0 U 0 0 0 eth1 127.0.0.0 * 255.0.0.0 U 0 0 0 lo default gateway.XXX 0.0.0.0 UG 0 0 0 eth0 </snip> iptables at present <snip> *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Lokkit-0-50-INPUT - [0:0] -A INPUT -j RH-Lokkit-0-50-INPUT -A FORWARD -j RH-Lokkit-0-50-INPUT -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 22 --syn -j ACCEPT -A RH-Lokkit-0-50-INPUT -i lo -j ACCEPT -A RH-Lokkit-0-50-INPUT -i eth1 -j ACCEPT -A RH-Lokkit-0-50-INPUT -i eth0 -j ACCEPT -A RH-Lokkit-0-50-INPUT -p udp -m udp -s 192.189.54.17 --sport 53 -d 0/0 -j ACCE PT -A RH-Lokkit-0-50-INPUT -p udp -m udp -s 203.8.131.1 --sport 53 -d 0/0 -j ACCEPT -A RH-Lokkit-0-50-INPUT -p udp -m udp -s 192.189.54.33 --sport 53 -d 0/0 -j ACCE PT -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --syn -j REJECT -A RH-Lokkit-0-50-INPUT -p udp -m udp -j REJECT COMMIT </snip> Can someone shed me some light in what I need to add to get masquerading working correctly. I've already got this in echo 1 >>/proc/sys/net/ipv4/ip_forward examples of ping [eth0] [root@xxxxxxxxxx /]# ping 192.189.54.17 PING 192.189.54.17 (192.189.54.17) 56(84) bytes of data. 64 bytes from 192.189.54.17: icmp_seq=1 ttl=251 time=18.8 ms 64 bytes from 192.189.54.17: icmp_seq=2 ttl=251 time=14.7 ms [eth1] [root@xxxxxxxxxx /]# ping -I eth1 192.189.54.17 PING 192.189.54.17 (192.189.54.17) from 192.168.0.1 eth1: 56(84) bytes of data. >From 192.168.0.1 icmp_seq=1 Destination Host Unreachable >From 192.168.0.1 icmp_seq=2 Destination Host Unreachable >From 192.168.0.1 icmp_seq=3 Destination Host Unreachable Thanks Simon -- Psyche-list mailing list Psyche-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/psyche-list