Acronis Access Advanced - Administrator's Guide - Manual (Page 99)

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5.4.2.1 Understanding Forefront Threat Management Gateway (TMG)
Network Topology
Forefront TMG includes four different network templates, that can fit in your existing network
topology. It is important to choose the most appropriate for your organization option. After installing
TMG, the Getting Started Wizard will appear, where you need to make initial configuration to your
TMG. The first menu of the Getting Started Wizard is Configure Network Setting, where you need to
make your choice about what network template to use. See bellow the available options.

Edge Firewall - In this topology, Forefront TMG is located at the network edge, where it serves as
the organization’s edge firewall, and is connected to two networks: the internal network and the
external network (usually the Internet).

3-Leg Perimeter - This topology implements a perimeter (DMZ) network. Forefront TMG is
connected to at least three physical networks: the internal network, one or more perimeter
networks and the external network.

Back/Front Firewall - In this topology, Forefront TMG is located at the network’s back-end. Use
this topology when another network element, such as a perimeter network or an edge security
device, is located between Forefront TMG and the external network. Forefront TMG is connected
to the internal network and to the network element in front of it.