In the Getting Started Wizard, click Configure network settings.

On the Network Template Selection page of the Network Setup wizard, select the option that most closely matches your Forefront TMG network topology. For details, see Planning Forefront TMG network topology.

On the Local Area Network (LAN) Settings page of the wizard, in Network adapter connected to the LAN, click the adapter connected to the main corporate network, and enter an IP address.

If you selected to apply the single network adapter template, you have the additional option of using a dynamic IP address allocated by DHCP.

If you selected a setting other than the single network adapter template, only a static IP address is supported for this adapter. In Specify additional array topology routes, click the Add button to add static routes for the array topology route.

On the Internet Settings page of the wizard, click the adapter connected to the Internet. You should set a default gateway on only one of the Forefront TMG network adapters. This is usually the network adapter associated with the Internet. Configure only a single default gateway on a network adapter.

If your Internet service provider (ISP) allocates a dynamic IP address, click the Obtain an IP address automatically button.

If your ISP allocates a static IP address, click the Use the following IP address button.

If you have a third network adapter, on the Perimeter Network Settings page of the wizard, click the network adapter connected to the perimeter network.

If you want to apply network address translation (NAT) to traffic between the perimeter network and the LAN, hiding internal IP addresses, in What type of IP addresses do servers in the perimeter networks use, click the Public button. Traffic between the perimeter network and the Internet is routed.

If you want to apply NAT to traffic between the perimeter network and the Internet, hiding internal IP addresses, in What type of IP addresses do servers in the perimeter networks use, click the Private button. Traffic between the perimeter network and the LAN is routed, exposing internal addresses.