DHCPv6 accounting

[Tim Chown]

On 21 May 2013, at 14:32, Marco Sommani <marcosommani at gmail.com> wrote:

> On 21/mag/2013, at 15:25, Tim Chown <tjc at ecs.soton.ac.uk> wrote:
> 
>> On 21 May 2013, at 13:26, Nick Hilliard <nick at foobar.org> wrote:
>> 
>>> On 21/05/2013 13:00, Liviu Pislaru wrote:
>>>> With DHCPv6 i didn't find a way to do that (identify what IPv6 is allocated
>>>> to which customer) without asking any additional information from the
>>>> customer (like DUID).
>>> 
>>> apparently this is a feature, not a bug.
>> 
>> There is this, which allows a relay to insert the client hardware address:
>> http://tools.ietf.org/html/draft-halwasia-dhc-dhcpv6-hardware-addr-opt-01
>> 
>> Seems to have expired though :/
>> 
>> Tim
> 
> This one is still valid, though:
> http://datatracker.ietf.org/doc/draft-ietf-dhc-dhcpv6-client-link-layer-addr-opt/
> 
> The difference is that in the new draft the link-layer address is not an option for clients, but just for relays. The idea is that servers located on the same link as the client may find the link-layer address in the L2 header.

Ah, right, sorry, that version slipped my mind :)

I would suspect in a largeish enterprise that that approach would be appropriate, as it's likely that all DHCPv6 traffic would be forwarded by a relay.

Tim

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