In Transparent IP mode, how is the IP address for the interface assigned?

In Transparent IP mode, the IP address for the interface is assigned using an Address Object within the WAN primary IP subnet. This mode is designed to allow the SonicWall appliance to pass packets transparently without altering the original IP addresses of the traffic. By using an Address Object, the SonicWall can efficiently manage and identify the traffic that is flowing through it while still being capable of filtering and managing that traffic based on the original source and destination IP addresses.

In this mode, the appliance does not operate on a routed interface but instead sits in-line with network traffic. The Address Object used for the interface helps ensure that the firewall can recognize and work with the existing IP addressing scheme, while also allowing it to maintain a connection to the existing WAN subnet for management and rule enforcement purposes. This method preserves the integrity of the original traffic while enabling robust network security capabilities.