User guide

Selecting a Firewall Configuration Mode
User Guide 25
In the example, the secondary network represents the local LAN. Because
the Trusted Interface is being configured with the public IP address, a
secondary network is added with an unassigned private IP address from
the local LAN: 192.168.10.1/24. This IP address then becomes the default
gateway for devices on the local LAN.
Selecting a Firewall Configuration Mode
Before installing the WatchGuard Firebox System, you must decide how
to incorporate the Firebox into your network. This decision determines
how you will set up the three Firebox interfaces–External, Trusted, and
Optional.