1:PREROUTING 2*mangle 3-j DNPT --src-pfx dead::/64 --dst-pfx 1c3::/64;=;OK 4-j DNPT --src-pfx dead::beef --dst-pfx 1c3::/64;;FAIL 5-j DNPT --src-pfx dead::/64;;FAIL 6-j DNPT --dst-pfx dead::/64;;FAIL 7-j DNPT;;FAIL 8