How to block a port

[atish]

Still learning and new

I did a grc shields up scan and two ports which are not stealth, 135 and 445.

I tried to create a rule in firewall to block the port on the WAN, however the port option is greyed out and will not let me enter the port.

What am i doing incorrectly.

Please guide.
thanks

[gdur]

The setting for "Protocol" defaults to ANY. If you select TCP/UDP here you can input the port number.

[fabian]

And on WAN it should be blocked anyway if you do not allow it explicitly (as in any other network)

[annoniempjuh]

by default every port is not allowed to get in, unless you did create a rule for...
maybe your ISP is blocking those ports?