Follow these instructions to configure DHCP relay:
First, you must configure each LAN computer to receive IP information assigned by a DHCP server:
1)Open the Windows Control Panel and display the computer's Networking properties. Configure the TCP/IP properties to "Obtain an IP address automatically" (the actual text may vary depending on your operating system).
Next, you specify the IP address of the DHCP server and select the interfaces on your network that will be using the relay service.
2)If the DHCP Configuration page is not already displaying, click the LAN tab, and then click DHCP Relay in the task bar.
3)In the DHCP Server Address fields, type the IP address of your ISP's DHCP server.
If you do not have this address, it is not essential to enter it here. Requests for IP information from your LAN will be passed to the default gateway, which should route the request appropriately.
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