the rad+slaacd scheme is described everywhere, but if Windows is used
instead of slaacd then when you change the prefix, Windows gets the
address from the new prefix, but does not remove the old one. as a
result ipv6 routing does not work. so i want to make a stateful
configuration in which(i hope) Windows will take new address and
remove old addresses. but i can not find the dhcp server in the config
where i can set a prefix as a "variable".
maybe there are other ways that are not obvious for me?