This policy setting allows you to select the UDP port the Teredo client will use to send packets. If you leave the default of 0 the operating system will select a port (recommended). If you select a UDP port that is already in use by a system the Teredo client will fail to initialize.If you enable this policy setting you can customize a UDP port for the Teredo client.If you disable or do not configure this policy setting the local host setting is used.
Policy path:
Network\TCPIP Settings\IPv6 Transition Technologies
Scope:
Machine
Supported on:
At least Windows Server 2008 R2 or Windows 7
Registry settings:
HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition!Teredo_ClientPort
Filename:
tcpip.admx