Re: All-DHCP-Relays: use ?

Hi Geert,
yes, you're right. But then is it up to the client to choose ?
What bothers me is that I've been unable to find any documentation on
its intended use.

Thanks!
-Carlos

Geert Nijs @ 04/06/2012 08:14 -0300 dixit:
> The scope of this multicast is not link-local, but AS scope.
> I guess this MC address is used to contact the DHCP server(s) directly across subnet boundaries, without relays.
>
> Geert
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Carlos G Mendioroz
> Sent: maandag 4 juni 2012 11:53
> To: Mukom Akong T.
> Cc: Cisco certification
> Subject: Re: All-DHCP-Relays: use ?
>
> There are 3 addresses and 3 functions in DHCPv6:
>
> Clients, that send to FF02::1:2 (all agents, link local).
> Agents can be either servers (which deal with the request) or relays, which relay the request to FF05::1:3 (all servers, site local).
>
> But there is a FF05::1:4 address, which is cited as all-relays in some places and all-agents in others. It is not described in RFC3315 and I have not seen any place where its use is described.
>
> All this addresses are mcast.
> -Carlos
>
> Mukom Akong T. @ 04/06/2012 00:49 -0300 dixit:
>> On Jun 2, 2012, at 10:37 PM, Carlos G Mendioroz<tron_at_huapi.ba.ar> wrote:
>>
>>> Hi there,
>>> I'm trying to find out what is ALL-DHCP-Relays (IPv6 anycast WKA FF05::1:4) used for, but so far, no luck.
>>>
>>> Any hints ?
>>
>> I am yet to lab this up to verify. If u make a a router a dhcpv6
>> relay, it should start listening to that group address. Dhcp clients
>> will send the messages to that address as well as there are no
>> broadcasts in v6.
>>
>>
>>
>>> --
>>> Carlos G Mendioroz<tron_at_huapi.ba.ar> LW7 EQI Argentina
>>>
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> --
> Carlos G Mendioroz<tron_at_huapi.ba.ar> LW7 EQI Argentina
>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net