Forefront Threat Management Gateway Easy Configuration

Microsoft Forefront Threat Management Gateway (TMG) is the successor of Microsoft Internet Security and Acceleration (ISA) Server. Windows Server 2008 or Windows Server 2003 can be utilized in order to setup a secure internet for your network.

The easy configuration scenario:

  • Forefront TMG installed computer needs to have two network adapters.
  • One of them for local network (adapter #1) which demands internet access and the other one (adapter #2) is internet access input.

Example:

Adapter #1 IP: 10.10.1.1
Adapter #1 Mask: 255.255.255.0
Adapter #1 Gateway: –
Adapter #1 DNS: 10.10.1.2

Adapter #2 IP: 10.20.1.20
Adapter #2 Mask: 255.255.255.0
Adapter #2 Gateway: 10.20.1.1
Adapter #2 DNS: 10.20.1.2

Client Adapter IP: 10.10.1.51
Client Adapter Mask: 255.255.255.0
Client Adapter Gateway: 10.10.1.1
Client Adapter DNS: 10.10.1.2

If you don’t wish to operate DNS servers in your network, you should allow DNS protocol to external and use 8.8.8.8 or any other famous DNS servers.

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