     udp  --  *      *       0.0.0.0/0            0.0.0.0/0            udp spt:00 dpt:00 0        0     0 DROP       all  --  *      *       0.0.0.0/0            0.0.0.0/0            state INVALID 0     0000  000K RETURN     all  --  *      *       0.0.0.0/0            0.0.0.0/0            state RELATED,ESTABLISHED 0       