The “Requested IP address” option is missing in the DHCP Discover package that is sent by a client computer that is running Windows Vista or Windows Server 2008
Consider the following scenario in a network environment:
- You use a Dynamic Host Configuration Protocol (DHCP) server to assign IP addresses to client computers.
- You log on to a client computer that is running Windows Vista or Windows Server 2008. This client computer is assigned an IP address successfully from the DHCP server.
- You shut down the client computer or unplug the network cable from the client computer.
- After the IP address lease time expires, you restart the client computer or you plug the network cable to the client computer.
In this scenario, you notice that the previously assigned IP address information is lost on the client computer. Therefore, applications that depend on the IP address may not work correctly.
Note: You can use a network monitor tool on the client computer to capture the network traffic. You will notice that the Requested IP address option is missing in the DHCP Discover (DHCPDISCOVER) package that is sent by the client computer.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB981849.