Try add iptables -I POSTROUTING -t nat -o eth1 -j MASQUERADE And make sure that second machine has first machine (IP) as gateway. Att, On 9/27/05, Alaios <alaios@xxxxxxxxx> wrote: > > Hi plz take a look at the following example > > The laptop has 2 ethernet interfaces > To eth1 comes traffic from src 143.233.222.253 <http://143.233.222.253> > The eth0 has ip address 10.2.4.2 <http://10.2.4.2> and it is connected > back to back with eth1 of other pc with ip address > 10.2.4.1 <http://10.2.4.1> > I want to forward the traffic with src 143.233.222.253<http://143.233.222.253> > to the 10.2.4.1 <http://10.2.4.1> pc and if it works i will redo this > for a second pc so as to l send the traffic to a third > on. > Can u help me plz? > > I have tried this one > iptables -t nat -A PREROUTING -i eth1 -s > 143.233.222.253 <http://143.233.222.253> -j DNAT --to-destination 10.2.4.1<http://10.2.4.1> > i have also set the > /proc/sys/net/ipv4/ip_forward to 1 > but still i cant see any trafiic to eth0 interface (ip > 10.2.4.2 <http://10.2.4.2>) > > > I have also tested this one > iptables -t nat -A PREROUTING -p tcp -d 143.233.222.77<http://143.233.222.77> > (laptop eth1 card) --dport 22453 (i have cheched dst > port with tcpdump) 00 -j DNAT --to-destination > 10.2.4.1 <http://10.2.4.1> > this still doesnt work > Every time i try to apply a new rule i use first > the iptables -F > iptables -t nat -F command > > > > > > > __________________________________ > Yahoo! Mail - PC Magazine Editors' Choice 2005 > http://mail.yahoo.com > > -- ===================== Rodrigo Ribeiro Montoro Desenvolvedor BRMAlinux spooker@xxxxxxxxxx RHCE/LPIC-I =====================
