:y;type filter hook prerouting priority -150 *ip6;x;y tproxy;fail tproxy to [2001:db8::1];fail tproxy to [2001:db8::1]:50080;fail tproxy to :50080;fail meta l4proto 6 tproxy to [2001:db8::1];ok meta l4proto 17 tproxy to [2001:db8::1]:50080;ok meta l4proto 6 tproxy to :50080;ok meta l4proto 6 tproxy ip6 to [2001:db8::1];ok;meta l4proto 6 tproxy to [2001:db8::1] meta l4proto 17 tproxy ip6 to [2001:db8::1]:50080;ok;meta l4proto 17 tproxy to [2001:db8::1]:50080 meta l4proto 6 tproxy ip6 to :50080;ok;meta l4proto 6 tproxy to :50080