IPV6_FW_IP6OPT_FRAG
if (chain->fw_ip6opt & IPV6_FW_IP6OPT_FRAG) PRINTOPT("frag");
if (chain->fw_ip6nopt & IPV6_FW_IP6OPT_FRAG) PRINTOPT("!frag");
if (!strncmp(p,"frag",strlen(p))) *d |= IPV6_FW_IP6OPT_FRAG;
opts &= ~IPV6_FW_IP6OPT_FRAG;
nopts &= ~IPV6_FW_IP6OPT_FRAG;