This chapter is from the book
Single-Gateway Product
A single-gateway product (also referred to as a firewall Internet gateway) is a node-limited firewall module bundled with a management console. This management console is only capable of managing a single-firewall module, and the firewall module must be installed on the same host as the management console. Because a single-gateway product includes a node-limited firewall license, it has the same restrictions as those stated in the previous section.