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VLAN Attributes Used in Network Policy

Applies To: Windows Server 2008

VLAN attributes used in network policy

When you use network hardware, such as routers, switches, and access controllers that support virtual local area networks (VLANs), you can configure Network Policy Server (NPS) network policy to instruct the access servers to place members of Active Directory® groups on VLANs.

Before configuring network policy in NPS for VLANs, create groups of users in Active Directory Domain Services (AD DS) that you want to assign to specific VLANs. Then when you run the New Network Policy wizard, add the Active Directory group as a condition of the network policy.

You can create a separate network policy for each group that you want to assign to a VLAN. For more information, see Create a Group for a Network Policy.

When you configure network policy for use with VLANs, you must configure the RADIUS standard attributes Tunnel-Medium-Type, Tunnel-Pvt-Group-ID, and Tunnel-Type. Some hardware vendors also require the use of the RADIUS standard attribute Tunnel-Tag.

To configure these attributes in a network policy, use the New Network Policy wizard to create a network policy. You can add the attributes to the network policy settings while running the wizard or after you have successfully created a policy with the wizard.

noteNote
To add the attributes after you have created the network policy with the wizard, locate the policy in the NPS console and double-click the policy to open it. Click the Settings tab in the policy properties, ensure that RADIUS Attributes - Standard is selected, and then click Add. In the Add Attribute dialog box, add the following attributes.

  • Tunnel-Medium-Type. Select a value appropriate to the previous selections you made while running the New Network Policy wizard. For example, if the network policy you are configuring is a wireless policy, in Attribute Value, select 802 (Includes all 802 media plus Ethernet canonical format).

  • Tunnel-Pvt-Group-ID. Enter the integer that represents the VLAN number to which group members will be assigned. For example, if you want to create a Sales VLAN for your sales team by assigning team members to VLAN 4, type the number 4.

  • Tunnel-Type. Select the value Virtual LANs (VLAN).

  • Tunnel-Tag. Some hardware devices do not require this attribute. If your hardware device requires this attribute, obtain this value from your hardware documentation.

For more information, see Add a Network Policy.

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