Configure DHCP WPAD Support
The DHCP scope option number 252 can be used to automatically configure Web Proxy and Firewall clients. The Web Proxy or Firewall client must be configured as a DHCP client, and the logged on user must be a member of the local administrators group or Power users group (for Windows 2000). On Windows XP systems, the Network Configuration Operators group also has permission to issue DHCP queries (DHCPINFORM messages).
•Note:
For more information about the limitations of using DHCP for autodiscovery with Internet Explorer 6.0, please see KB article Automatic Proxy Discovery in Internet Explorer with DHCP Requires Specific Permissions at
Perform the following steps at the DHCP server to create the custom DHCP option:
1.Open the DHCP console from the Administrative Tools menu and right click your server name in the left pane of the console. Click the Set Predefined Options command.
2.In the Predefined Options and Values dialog box, click Add.
3.In the Option Type dialog box, enter the following information:
Name: wpad
Data type: String
Code: 252
Description: wpad entry Click OK.
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