Milan Babuskov wrote:

>Alexandre Benson Smith wrote:
>
>
>>Ok, but Jim are talking about derivating a CPUId (wich will be a "small"
>>number of bits) from the MAC (also called MAC-48 because use 48bits) or
>>IP address (32 bits or 64 bits for IPv6).
>>
>>
>
>IPv6 has 48 bits, not 64.
>
>I can't see how IP address could be considered relevant. One computer can have
>many IP addresses. Many computers can also have same IP address and
>communicate with each other via two NAT routers for example.
>
>
>

The IP address can be used as input to a table lookup to determine
system id. If two or more machines in a cluster have the same IP
address this wouldn't work. Happily, they can't. In the final
analysis, whatever application specific method is used to compute the
system id is an operational issue of no consequence.

--

Jim Starkey
Netfrastructure, Inc.
978 526-1376