Message Routing

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

The company uses DHCP relay agents to relay DHCP messages between subnets and sites. To support and use DHCP across multiple subnets, routers connecting each subnet should comply with DHCP/BOOTP relay agent capabilities described in RFC 1542. To cut the cost of expensive network hardware such as routers, the company uses the Windows Server 2003 Routing and Remote Access service including, DHCP relay agents, to forward DHCP/BOOTP messages between subnets. Because the VPN servers act as routers for network traffic, the DHCP relay agents are configured on the VPN servers.

For more information about installing and configuring DHCP relay agents, see "Configure the DHCP Relay Agent" in Help and Support Center for Windows Server 2003.