hello list-users, i want clean up my pre- and postrouting chains with rules like this: iptables -t nat -A PREROUTING -i eth0 -j first_group iptables -t nat -A PREROUTING -i eth1 -j second_group iptables -t nat first_group -s a.b.c.d -d x/y -p tcp --sport 1024:65535 --dport 10001 -j DNAT --to-destination 1.2.3.4:25 iptables -t nat second_group -s a.b.c.d -d x/y -p tcp --sport 1024:65535 --dport 10002 -j DNAT --to-destination 4.5.6.7:25 is there any modul which makes this possible? best regards Jan