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Microsoft DHCP and Windows Deployment Services on separate servers with the clients on a different subnet from the Windows Deployment Services server The recommended approach in this scenario is to use IP Helper tables on the router or switch to forward PXE requests to the Windows Deployment Services server (as well as the DHCP server). An alternative approach is to configure DHCP options 66 and 67 on all scopes to specify the Windows Deployment Services server and the path to the boot program.
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Third-party DHCP and Windows Deployment Services on separate servers No additional action should be required for Windows Deployment Services to coexist with third-party DHCP servers. The Windows Deployment Services PXE server will respond with boot file location information only, allowing DHCP to service the IP address request.
Figure 10-5 Configuring DHCP options in Windows Deployment Services
Note RIS requires the RIS server to be authorized as a DHCP server in AD DS. This is not
required to operate Windows Deployment Services.
Routing Requirements When DHCP and Windows Deployment Services are located on different subnets or if clients are located on a different subnet than the Windows Deployment Services server, IP Helpers must be configured on network routers to enable forwarding of DHCP and PXE boot requests to the appropriate servers. (See Figure 10-6.) Planning for Windows Deployment Services Chapter 10
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