Hi, > Isn't SCTP just a sub-protocol of TCP/IP? Well, i do not know about SCTP, but if the SCTP protocol stores IP/port information inside the packet (like eg. FTP PORT), then this information has to be rewritten by a clever conntrack module. I have to read on SCTP, i do not even know what is it for :-D Regards, Maciej Soltysiak