on Mon, Feb 18, 2002 at 04:54:25PM +0100, Wojciech Puchar wrote:
> and does it mean i MUST have last 64 bits of address equal to function of
> ethernet MAC address.

No. Stateless address autoconfiguration is just easier and less error
prone.
See http://www.netbsd.org/Documentation/network/ipv6/#setup_manual

You might also want to read:

    http://www.ietf.org/rfc/rfc2373.txt
    http://www.ietf.org/rfc/rfc2772.txt