Enter the port number. When setting the source port you can select From any port
if you previously entered Any IP Address
for the source address, because you do not know the port used by the client (it is selected at random). If you open all ports for the destination port, your filter is no longer set up specifically for one service, but applies to all services and would make all IPSec filters useless. Click Next
To set which service corresponds to your filter, you will need the required port number(s). If you don't know them, refer to the included documentation or ask the manufacturer. Lists of common ports can also be found on the Internet by searching for port list.
Set IP protocol port