> Thanks a lot the error message is gone now, > after I changed the line to: > iptables -t nat -A PREROUTING -p tcp --destination-port 25 -i eth0 -j DNAT --to-destination 192.168.22.6:25 > But when I do iptables --list > I dont see any entrys in the chain for PREROUTING You must specify that you want to list the content of the nat table.... iptables -t nat --list
