A network service alias is a set of configurations that consist of protocol and port mappings. Both source and destination ports are configurable. For each protocol, up to two source port ranges and up to two destination port ranges can be configured. A maximum of four protocol entries can be configured per network service alias.
Use a service alias to associate more than one IP address to a network interface, providing multiple connections to a network from a single IP node.
A network service alias can be used to substitute protocols and ports in IP firewall rules.