IPV6_HLIMDEC
if (ip6->ip6_hlim <= IPV6_HLIMDEC) {
ip6->ip6_hlim -= IPV6_HLIMDEC;
ip6->ip6_hlim <= IPV6_HLIMDEC) {
ip6->ip6_hlim -= IPV6_HLIMDEC;
ip6i->ip6_hlim += IPV6_HLIMDEC;
if (*V_nat64ip6stealth == 0 && ip6->ip6_hlim <= IPV6_HLIMDEC) {
ip->ip_ttl -= IPV6_HLIMDEC;
if (ip6->ip6_hlim <= IPV6_HLIMDEC) {
ip6->ip6_hlim -= IPV6_HLIMDEC;