IPv6 /64 links (was Re: ipv6 book recommendations?)

Masataka Ohta mohta at necom830.hpcl.titech.ac.jp
Wed Jun 6 16:15:53 CDT 2012

Owen DeLong wrote:

> It is because of IEEE EUI-64 standard.

Right, so far.

> It was believed at the time of IPv6 development that EUI-48 would run out of
> numbers and IEEE had proposed going to EUI-64. While IEEE still hasn't
> quite made that change (though Firewire does appear to use EUI-64 already),
> it will likely occur prior to the EOL for IPv6.

Wrong. It is because I pointed out that IEEE1394 already use EUI-64.

> Since bits are free when designing a new protocol,
> there really was no reason to impose such limitations.

Bits are not free.

Remembering a 64 bit value human, a 128 bit value divine, which
makes IPv6 network operation hard.

						Masataka Ohta

More information about the NANOG mailing list