Hi: I have only one network adapter in my Server, but i need to have 2 different networks, 192.168.1.0 to the MAC addresses i know and 192.168.0.0 to the MAC addresses i dont't know, i have managed this by makin mi eth0 to 192.168.1.1 and an alias eth0:0 to 192.168.0.1, everythings ok, but i'm also sharing internet, but when i start the rule to the eth0:0 it sends me an error. Is there a way to use IP Aliasing with iptables? if not, is there a way to create an eth0 and eth1 witn the same adapter? Thanks Rodrigo