Hi, I am using Slackware 10.2 and updated kernel to 2.6.19.2, because I need suport to pptp NAT. Kernel configured and compiled OK. Almost all NETFILTER built-in. Iptables 1.3.7 compiled OK. All my rules, including other matchs (state) than multiport worked fine, but, lines using multiport returned FATAL: no ip_tables module. There is no ip_tables because it is compiled in, I thought. Only way to solve: mark everything ( didn't test one by one ) about netfilter as Module and recompiled the kernel. This way, iptables 1.3.7 working with my rules. Please, did I miss something? Really thank you for your attention. Regards, Freitas (Poor english)