ip_conntrack ditches packets for masquerading etc if their ip checksum is wrong. Is it possible to disable this behaviour on kernel 2.6.18 (I know, it's old)? I have something that like producing tcp packets with invalid checksums. -- Alex Bligh -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html