Hello all, I want to ask for help in setting a simple home network, as it became more complicated than I thought :( The idea is something like that: [ Gateway (192.168.100.1) ] <-- Wireless connection ---> [ My PC (192.168.100.134 / 10.0.0.1 In my home network) ] <-- Crossed LAN cable --> [ My laptop (10.0.0.249) ] As you can figure out, the Internet comes from gateway :) I've set up everything on my PC : DHCP, DNS and, of course, iptables. Everything seems to work except the masquerade :( When I send an icmp packet from my laptop, everything works fine - I can ping google.com for example; two computers can also communicate (FTP / SSH) but I cannot get any TCP (or any other packet) from the outside :( My iptables script is: #!/bin/bash iptables -F iptables -F -t nat iptables -F -t mangle iptables -F -t filter iptables -X iptables -t filter -A FORWARD -p icmp -j ACCEPT iptables -t filter -A FORWARD -p tcp -j ACCEPT iptables -t nat -A POSTROUTING -p icmp -j MASQUERADE iptables -t nat -A POSTROUTING -p tcp -j MASQUERADE What gives me Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT icmp -- anywhere anywhere ACCEPT tcp -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination You can find some other example at http://wpk.p.lodz.pl/~bejus/wireshark.txt . It seems to me that packets from laptop are routed to www.google.com, they return, but they aren't sent back to my Laptop. Can this be caused by 64bit system on my PC box? Any help will be appreciated.
