CheckIPAddressType returns the type of the IP address.

NetToRange converts a *net.IPNet to an IPRange.

InvalidIPStr -- Error message for invalid IP.

IPv4Str -- String denoting IPV4, used like an enum.

IPv6Str -- string denoting IPv6, used like an enum.

IPRange is a range of IPs, from Start to End inclusive.

PortRange is a range of ports, from Start to End inclusive.

IPSpecifierString is a string in the form of an IP range, CIDR address, or regular IP.

Port alias uint16 for readability.

PortSpecifierString is a string in the form of a port range, or a single port.