Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh routing ip relay add interface ?
Usage: add interface [name=]
Parameters:
Tag Value
name - The name of the interface where DHCP Relay Agent is
to be enabled.
Remarks: Enables DHCP Relay Agent on the specified interface.
Examples:
add interface "Local Area Connection"