Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh routing ip nat add ?
The following commands are available:
Commands in this context:add addressmapping - Adds an IP address mapping to the NAT interface address pool.
add addressrange - Adds an address range to the NAT interface address pool.
add ftp - Enables the FTP proxy.
add h323 - Enables the H323 proxy.
add interface - Configures NAT on the specified interface.
add portmapping - Adds a protocol port mapping on the NAT interface.