How to configure a PPPoE connection in ISA Server 2006 or in ISA Server 2004

[LEFT][CODE]http://support.microsoft.com/?scid=kb%3Ben-us%3B837830&x=12&y=14[/CODE] Certain broadband asynchronous digital subscriber line (ADSL) or digital subscriber line (DSL) Internet service providers (ISPs) require a special dial-up connection that uses Point-to-Point Protocol over Ethernet (PPPoE).

This article describes how to configure Microsoft Internet Security and Acceleration (ISA) Server 2006, ISA Server 2004 or Forefront Threat Management Gateway, Medium Business Edition to use this type of connection as the primary route to the Internet.

[B]Note[/B] See the documentation from your ISP for the installation and configuration of any third-party PPPoE connection that you may require.

In this type of configuration, the ISA Server computer is configured with more than one network adapter and with a dial-up PPPoE network connection. One network adapter is connected to the internal network, and one network adapter is connected to the broadband modem.

To configure ISA Server, add the PPPoE dial-up entry, configure the internal network, and then configure any routes to use the dial-up entry.



[B]Configure a dial-up entry on the ISA Server computer[/B]

Certain PPPoE programs, such as WinPoET, are represented by a dial-up entry. To configure ISA Server to use a dial-up entry for Internet access, follow these steps:
[LIST=1][*]Start the ISA Server Management tool.[*]Expand [B]ServerName[/B], where ServerName is the name of your ISA Server computer.[*]Expand [B]Configuration[/B], and then click [B]Networks[/B].[*]In the center pane, click the [B]Networks[/B] tab, click the [B]Tasks[/B] tab in the right pane, and then click [B]Specify Dial-up Preferences[/B].[*]Click [B]Allow automatic dialing to this network[/B], click [B]External[/B] in the list of networks, click to select the [B]Configure this dial-up connection as the default gateway[/B] check box if you want to use this connection as your default route to the Internet, and then click [B]Select[/B].[*]In the [B]Network Dial-up Connection[/B] list, click the PPPoE connection that you want ISA Server to connect to, and then click [B]OK[/B].[*]Click [B]Set Account[/B], type the account credentials for the PPPoE connection, and then click [B]OK[/B].

[B]Note[/B] These are the credentials that are provided by your ISP.[*]Click [B]Apply[/B] to save your changes and to update the firewall policy, and then click [B]OK[/B].[*]Verify that a default gateway is not configured on any one of the internal network adapters on the ISA Server computer.[/LIST]



[B]Configure a dial-up entry on the Forefront Threat Management Gateway, Medium Business Edition[/B]


[LIST=1][*]Start the Forefront Threat Management Gateway, Medium Business Edition Management tool.[*]Expand [B]ServerName[/B], where ServerName is the name of your Forefront Threat Management Gateway, Medium Business Edition Server computer.[*]Click [B]Networking[/B].[*] Click the [B]Tasks[/B] tab in the right pane, and then click[B]Specify Dial-up Preferences[/B].[*]Click [B]Allow automatic dialing to this network[/B], click [B]External[/B] in the list of networks, click to select the [B]Configure this dial-up connection as the default gateway[/B] check box if you want to use this connection as your default route to the Internet, and then click [B]Select[/B].[*]In the [B]Network Dial-up Connection[/B] list, click the PPPoE connection that you want ISA Server to connect to, and then click [B]OK[/B].[*]Click [B]Set Account[/B], type the account credentials for the PPPoE connection, and then click [B]OK[/B].

[B]Note[/B] These are the credentials that are provided by your ISP.[*]Click [B]Apply[/B] to save your changes and to update the firewall policy, and then click [B]OK[/B].[*]Verify that a default gateway is not configured on any one of the internal network adapters on the ISA Server computer.[/LIST]


[B]Configure the internal network[/B]

When you configure the internal network, include only the network adapter that represents the internal local area network (LAN). The inclusion of the network adapter that is connected to the DSL modem does not prevent internal users from accessing the Internet, but it may open your internal network to access from the external network.


For additional information about how to configure a dial-up connection in ISA Server, search on "dial-up" in ISA Server Help.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.


[B]APPLIES TO[/B]


[LIST][*]Microsoft Internet Security and Acceleration Server 2004 Standard Edition[*]Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition[*]Microsoft Internet Security and Acceleration Server 2006 Standard Edition[*]Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition[*]Windows Essential Business Server 2008 Standard[*]Microsoft Forefront Threat Management Gateway, Medium Business Edition[/LIST]


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