Persistent DUID (DHCP Unique Identifier) for Server

[sthaug at nethelp.no]

> >>Thus effectively making it unusable?
> 
> >No, it serves to identify the client to the DHCP server.   That's 
> >very useful.   When you say "makes it unusable," you must mean 
> >unusable for something other than that.
> 
> I think what was meant is that hardly any devices these days truly 
> fit the description of having an immutable interface hardware 
> address. If applied to the letter, the restriction would preclude the 
> use of DUID-LL for virtually all devices - thus "effectively making 
> it unusable".

Precisely. Most Ethernet devices I know of read the MAC address from
some form of readonly hardware (e.g. ROM) and then loads the address
into a register which can be programmatically modified.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no