NHF_INET6
ipst->ips_ip6_observe_pr = net_protocol_lookup(id, NHF_INET6);
NHF_INET6,
ins->ipdn_v6hdl = net_protocol_lookup(ins->ipdn_netid, NHF_INET6);
ifs->ifs_ipf_ipv6 = net_protocol_lookup(id, NHF_INET6);
if ((ips->ips_ndv6 = net_protocol_lookup(netid, NHF_INET6)) != NULL) {