How to configure ISA Server 2004 or Microsoft Forefront Threat Management Gateway, Medium Business Edition after you add a new network adapter or you replace a network adapter

This step-by-step article discusses how to configure Microsoft Internet Security and Authentication (ISA) Server 2004 or Microsoft Forefront Threat Management Gateway, Medium Business Edition after you add a new network adapter or you replace a network adapter.

Replace a network adapter

To replace a network adapter on a computer that is running ISA Server 2004 or Microsoft Forefront Threat Management Gateway, Medium Business Edition, follow these steps.

Note We recommend that you disconnect the computer from the Internet when you replace any network adapters that are part of the internal network because the firewall is stopped and the computer may be vulnerable to attack during this time.

1. Stop and disable the ISA Server services or Microsoft Forefront Threat Management Gateway, Medium Business Edition services. To do this, follow these steps:
   1. Click Start, point to Programs, point to Administrative Tools, and then click Services.
   2. In the list of services in the right pane, double-click Microsoft Firewall.
   3. In the Startup type box, click Disabled.
   4. In the Service type area, click Stop.
   5. Click OK.
   6. Repeat steps b through e for the following services:
      • Microsoft ISA Server Control or Microsoft Forefront TMG Control for Forefront Threat Management Gateway
      • Microsoft ISA Server Job Scheduler or Microsoft Forefront TMG Job Scheduler for Forefront Threat Management Gateway
      • Microsoft ISA Server Microsoft Forefront TMG Storage for Forefront Threat Management Gateway
2. Remove the network adapter you are replacing. To do this, follow these steps:
   1. Click Start, point to Programs, point to Administrative Tools, and then click Computer Management.
   2. Click Device Manager.
   3. In the right pane, expand Network adapters, right-click the network adapter that you are replacing, and then click Uninstall.
   4. Click OK.
3. Shut down the computer.
4. Replace the network adapter.
5. Restart the computer.
6. Log on to the computer and install the new network adapter.
   
   Note The Microsoft Windows Plug and Play hardware-detection operation and ISA Server 2004 or Microsoft Forefront Threat Management Gateway, Medium Business Edition detect and replace most network adapters automatically, but this depends on the drivers that are associated with the network adapter.
7. Configure the TCP/IP configuration.
   
   Note If you replace a network adapter and assign it an IP address in a range that is already included in a network object defined in ISA Server or Microsoft Forefront Threat Management Gateway, Medium Business Edition, ISA Server or Microsoft Forefront Threat Management Gateway, Medium Business Edition sees the new network adapter as part of that network.
8. Start the ISA Server or Microsoft Forefront Threat Management Gateway, Medium Business Edition services. To do this, follow these steps:
   1. Click Start, point to Programs, point to Administrative Tools, and then click Services.
   2. In the list of services in the right pane, double-click Microsoft Firewall.
   3. In the Startup type box, click Automatic.
   4. In the Service type area, click Start.
   5. Click OK.
   6. Repeat steps b through e for the following services:
      • Microsoft ISA Server Control or Microsoft Forefront TMG Control for Forefront Threat Management Gateway
      • Microsoft ISA Server Job Scheduler or Microsoft Forefront TMG Job Scheduler for Forefront Threat Management Gateway
      • Microsoft ISA Server Storage or Microsoft Forefront TMG Storage for Forefront Threat Management Gateway
9. Open the ISA Server or Microsoft Forefront Threat Management Gateway, Medium Business Edition console, and configure the new network adapter. To do this, follow these steps:
   1. Click Start, point to Programs, point to Microsoft ISA Server or Microsoft Forefront TMG, and then click ISA Server Management or Forefront TMG Management.
   2. In the right pane, expand Configuration, and then click Networks.
   3. Manually configure the network and add any rules, or select a network template from the right pane to specify your new configuration.
   4. After you configure the network, you can configure firewall policy rules. For more information about configuring firewall policy rules, see the Configure Firewall Policy Rules topic in the ISA Server 2004 or Microsoft Forefront Threat Management Gateway, Medium Business Edition help documentation.

Add a new network adapter

To add a new network adapter, follow these steps:

1. Shut down the computer.
2. Insert the new network adapter into the computer.
3. Restart the computer.
4. Log on to the computer, and then install the new network adapter.
5. Configure the TCP/IP settings.