Microsoft Windows [Version 6.0.6001] (C) Copyright 2006 Microsoft Corp. c:\windows>netsh interface ipv6 delete neighbors ?
Usage: delete neighbors [[interface=][[address=]]]][[subinterface=]
Parameters:
Tag Value
interface - Interface name or index.
address - Address of neighbor.
subinterface - Subinterface LUID.
Remarks: Flushes the neighbor cache. If an interface is specified,
flushes the cache only on that interface. If an address is
also specified, deletes only that neighbor cache entry.
Example:
delete neighbors "Private"