[Masq] Masq'ing PLIP ?

[P. Matilainen]

Hi   I installed linux on my 486 laptop and since it doesn't have NIC, I decided to try access internet via PLIP. In the other end is my second linux box which handles firewall and masq'ing my windows box. Firewall (iptables) and laptop (ipchains), because of different kernels. So far I have managed to do this: laptop IP(plip0): 192.168.90.7, firewall IP(plip0) 192.168.90.6, and both ends have point-to-point running on each other. Firewall plip0 netmask is 255.255.255.255 and laptop's plip0 255.255.255.0. With these netmasks I managed to get ping work: 192.168.90.6 -> 192.168.90.7 and vice versa. I can also ping 192.168.90.1 (eth1 on firewall box) from the laptop but nothing is forwarded to eth0 (internet). I have already forwarding policy for entire 192.168.90.0 network so it should work? I have also added forwarding: iptables -A FORWARD -i plip0 -o eth0 -j ACCEPT and iptables -A FORWARD -i eth0 -o plip0 -j ACCEPT, but still I can't access internet. I can't even ping eth0's IP from the laptop... Any ideas? route is added as required. So the basic line is: How to forward plip0 to internet?   -Petteri Matilainen