On Tue, 27 Aug 2002 14:43:38 -0400 Peter John Hill <[EMAIL PROTECTED]> wrote: > > > On Tuesday, August 27, 2002, at 10:41 AM, Joe Baptista wrote: > > > Ipv6 uses 128 bits to provide addressing, routing and identification > > information on a computer. The 128-bits are divided into the left-64 > > and > > the right-64. Ipv6 uses the right 64 bits to store an IEEE defined > > global > > identifier (EUI64). This identifier is composed of company id value > > assigned to a manufacturer by the IEEE Registration Authority. The > > 64-bit > > identifier is a concatenation of the 24-bit company_id value and a > > 40-bit > > extension identifier assigned by the organization with that company_id > > assignment. The 48-bit MAC address of your network interface card is > > also > > used to make up the EUI64. > > Since it so easy for a host (relative to ipv4) to have multiple ip > addresses, I like what Microsoft has done. If told by a router, a Win > XP box will assign itself a global unicast address using EUI-64. It > will also create a global unicast anonymous address. This will not be > tied to the hardware, and the OS will also limit how long it uses that
Wasn't this described in an Internet draft ? Do you know what the status is - I cannot seem to find it. Marshall > address before deprecating that address and creating a new preferred > anonymous address. I can see servers using the EUI-64 address, while > clients use the anonymous address. It will allow servers to narrow down > who is accessing their servers to a 64 bit subnet. That will be good > enough for most statistics, but will make it more difficult to do the > scarier tracking of users. > > I have noticed that the Linux and Mac OS X ipv6 implementations so not > create the private addresses automatically. > Peter Hill > Network Engineer > Carnegie Mellon University >