A port number is a 16-bit unsigned integer, thus ranging from 0 to 65535.
For TCP, port number 0 is reserved and cannot be used, while for UDP, the source port is optional and a value of zero means no port
https_portinteger
A port number is a 16-bit unsigned integer, thus ranging from 0 to 65535.
For TCP, port number 0 is reserved and cannot be used, while for UDP, the source port is optional and a value of zero means no port