Persistent DUID (DHCP Unique Identifier) for Server

[Simon Hobson]

Bjørn Mork wrote:

>  > 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".
>
>Well, there are devices with ethernet and without user writable flash,
>either because they are entirely ROM based or because programming them
>requires using a special interface (JTAG or whatever).

To the letter of the spec, that still doesn't fit 
the "cannot be changed" requirement. Most devices 
have some flash, if only to hold the MAC address, 
and whilst nominally static, such flash can 
usually be changed.

But yes, that is exactly the sort of device DUID-LL is aimed at.

-- 
Simon Hobson

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