Assign IPv6 address in Windows XP from command line

Command:

netsh interface ipv6 add address interface=<> address=<> type=<> validlifetime=<> preferredlifetime=<> store=<>

interface: Interface name or index

address: IPv6 address to add

type: unicast or anycast

validlifetime: lifetime over which the address is valid (integer | infinite), Default is infinite

preferredlifetime: lifetime over which the address is preferred (integer | infinite), Default is infinite

store: (active: change only lasts until next boot | persistent: change is persistent(Default))

Example:
netsh interface ipv6 add address "LAN" 2001::4 type=unicast

here "LAN" is the name of interface, 2001::4 is the IPv6 address

Note:

- to get information about windows commands, try: command ?