Figure 6.9 shows the Configure subnets screen that appears when the administrative user selects the Subnets option from the Wizard menu.
Before configuring and assigning private subnets, the site’s administrators must plan an addressing scheme that reflects the needs of the organization. Configuring private subnets is only part of the preparatory work that must be done. On this screen, the administrative user can also configure a virtual network based on Destination Network Address Translation (DNAT).