NewPort returns a Port if the argument has a valid TCP/UDP port number (no limitation of port type or type range), error otherwise.

NewPortForType returns a Port if the argument has a valid TCP/UDP port number for the requested port type, error otherwise.

NewPortForTypeRange returns a Port if the argument has a valid TCP/UDP port number for the requested port type range, error otherwise.

ParseAddress parses the input string to validate the following: 1.

ParseAddressForPortType behaves like ParseAddress, only that the port validation (#2) is limited to the specified port type.

ParseAddressForPortTypeRange behaves like ParseAddress, only that the port validation (#2) is limited to the specified port type range.

dynamic, private or ephemeral ports.

registered ports.

system or well-known ports.

Port is an interface to ensure consistency - use NewPort(), NewPortForType() or NewPortForTypeRange() functions to obtain a valid Port.