In this section there is the ability to give hosts and networks convenient naming schemes. This will make firewall rule creation easier on us humans as these names can be used in place of entering IP and network addresses for sources and destinations. In our example scenario we have several entities that would be advantageous to name here. There are the two networks (internal and external), the two firewall interfaces (internal and external), a mail server, a DNS server and an external host where remote administration can be performed from.
Two networks (internal and external)
Two firewall interfaces (internal and external)
Administrator's remote host