Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh routing ip nat delete portmapping ?
Usage: delete portmapping [name=][proto=]tcp|udp [publicip=]|0.0.0.0
[publicport=]integer
Parameters:
Tag Value
name - The name of the interface from which you want to delete
a NAT port mapping.
proto - One of the following values:
tcp: Sets protocol type to TCP.
udp: Sets protocol type to UDP.
publicip - Either a specified external IP address on the public
network or 0.0.0.0 to indicate any IP address not
specified within the private network address range.
publicport - A number from 0 to 9999 for the public protocol port.
Remarks: Deletes a protocol port mapping from the specified NAT interface.
Examples:
delete portmapping local tcp 0.0.0.0 80
