How to set a policy that deny traffic of udp on 1000A

How to set a policy that deny traffic of udp on 1000A

My device firmware version is V3.00,build0483,070703

Operation Mode is NAT

Port1 is connected Intranet, and Port3 is connected Internet.

when I create a policy that deny traffice of udp @ Port3 or Port1 on cli,  the destination / source of interface must be assigned.  it doest not input any. only select port 1 to port 10.