Static IPv6 address for Windows XP

Windows XP has a half brewn IPv6 support.

It's network configuration GUI lacks the possibility to add static IPv6 addresses.

It can be done on command line though, as described at

The core steps are:

# show IPv6 config
ipv6 if
# search interface with dynamic global addresses, typically 4 or 5
# add address permamently
ipv6 -p adu 4/2001:15c0:65ff:8504::119:107