Hi Net! The SOCK_RAW,IPPROTO_xxx with IP_HDRINCL not supported anymore at INET6 sockets. As replacement the SOCK_RAW,IPPROTO_RAW recomended but in this case the receiver does not pass packetes to upper level (filter out all proto). The RFC tell to emulate IP_HDRINCL at INET6 use protocol 0 but unfortunately this is not implemented by linux kernel (socket error 93). The platform is 2.6.22 64bit kernel socket. Thank you in advance! kzsolt -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html