Tony Crouch wrote: > Hi All, > I have spent the last few days trying to set up an IP masquerading > situation on my home LAN (which only consists of my FC4 notebook and my > windows XP desktop). I have gone through all the sites and read all > about IP tables, but alas I still can't get it setup. > > The IPs' of my two machines are: > Notebook (aka: masquerading box) : 192.168.0.1 > Desktop : 192.168.0.2 > Try the following three lines as a start: /sbin/iptables -D POSTROUTING -t nat -s 192.168.0.0/24 -d ! 192.168.0.0/24 \ -j MASQUERADE /sbin/iptables -t nat -s 192.168.0.0/24 -d ! 192.168.0.0/24 -A POSTROUTING \ -j MASQUERADE echo 1 > /proc/sys/net/ipv4/ip_forward If it works, to make it permanent, the first two (without /sbin/iptables) can be added to /etc/sysconfig/iptables. I'm sure there's a proper way to turn on ip_forward, but I just put the third line in rc.local. > My firewall has been turned off within: "Desktop --> System Settings --> > Security Level". > This is not a good idea, even on dial-up. Turn the firewall on, then allow any traffic through eth0 (or whatever your LAN is on) using: /sbin/iptables -I RH-Firewall-1-INPUT 2 -i eth0 -j ACCEPT Let us know if it works! Jonathan -- http://jonathan.rawle.org/
