> You should also make sure you are loading modules ip_tables and ip_conntrack > before you load your other modules. Iptables are built into the kernel, even after loading ipt_conntrack I receive invalid argument. I just do: iptables -t nat -F iptables -t nat -A POSTROUTING -o eth1 -j SNAT --to 217.129.146.56 First line is ok, second returns invalid argument. Getting desperate. Any ideas? Best regards, Paulo > > Khanh Tran > Network Operations > Sarah Lawrence College > > > -----Original Message----- > From: Paulo J. Matos [mailto:pocm@mega.ist.utl.pt] > Sent: Sunday, February 16, 2003 9:45 AM > To: Khanh Tran; netfilter@lists.netfilter.org > Subject: Re: Command not working in latest version > > > > You'll now want to do: > > > > iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to $EXTIP > > > > where eth0 is the interface going out to the Internet and $EXTIP is the > > public IP on that interface. > > Hi Khanh, strangely I still get Invalid Argument. > iptables -t nat -A POSTROUTING -o eth1 -j SNAT --to 217.129.146.56 > > where eth1 is the interface that gives access to the internet with IP > 217.129.146.56 (given by DHCP server). > > Thx for your patience, > > Paulo > > > > > Khanh Tran > > Network Operations > > Sarah Lawrence College > > > > > > -----Original Message----- > > From: Paulo J. Matos [mailto:pocm@mega.ist.utl.pt] > > Sent: Sunday, February 16, 2003 9:00 AM > > To: netfilter@lists.netfilter.org > > Subject: Command not working in latest version > > > > > > Hi all, > > > > I've changed from my old distribution to a new one that comes with > iptables > > 1.2.7a. > > I have iptables in the kernel (2.4.20) and I've loaded the modules > > iptable_nat, ipt_REDIRECT and ipt_MASQUERADE. > > I had in my previous distributions the following lines: > > iptables -t nat -F > > iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE > > > > This would give total access from lan attached to eth0 to the internet > > through my computer. But now, line 1 executes ok, line 2 gives: > > iptables: Invalid Argument > > > > If I do : > > iptables -t nat -A POSTROUTING -o eth0 > > everything runs ok but lan has still no access to the internet as > expected. > > What's happening, any ideas? > > > > Best regards, > > > > Paulo > > > > > > > > > > > > > > > > > >
