IPV6_FW_TCPF_RST
if (chain->fw_tcpf & IPV6_FW_TCPF_RST) PRINTFLG("rst");
if (chain->fw_tcpnf & IPV6_FW_TCPF_RST) PRINTFLG("!rst");
{ "rst", IPV6_FW_TCPF_RST },
((tcp6->th_flags & (IPV6_FW_TCPF_RST | IPV6_FW_TCPF_ACK |