Hi Jonathan, Thanks for your reply with regards to my IP masquerading query. I ran the two scripts you initially mentioned in your reply. It seems for some reason (even though the j or jump switches are contained within the iptables manual, it reports an error ... I have included my terminal output below. [root@localhost tony]# /sbin/iptables -D POSTROUTING -t nat -s 192.168.0.0/24 -d ! 192.168.0.0/24 \ -j MASQUERADE Bad argument ` -j' Try `iptables -h' or 'iptables --help' for more information. [root@localhost tony]# /sbin/iptables -D POSTROUTING -t nat -s 192.168.0.0/24 -d ! 192.168.0.0/24 \ --jump MASQUERADE Bad argument ` --jump' Try `iptables -h' or 'iptables --help' for more information. Any ideas as to why this switch is being reported as being invalid? Thanks for your help. Cheers, Tony ################### > > Message: 18 > Date: Tue, 25 Oct 2005 19:17:39 +0100 > From: Jonathan Rawle <gmane@xxxxxxxxxxxxxxxxxxx> > Subject: Re: FC4 IP Masquerading > To: fedora-list@xxxxxxxxxx > Message-ID: <djlss3$mtu$1@xxxxxxxxxxxxx> > Content-Type: text/plain; charset=us-ascii > > 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/ >
