Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Delegation

Jouni Korhonen <jouni.nospam@gmail.com> Tue, 19 November 2013 17:36 UTC

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From: Jouni Korhonen <jouni.nospam@gmail.com>
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Date: Tue, 19 Nov 2013 19:36:46 +0200
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To: "Bernie Volz (volz)" <volz@cisco.com>
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Cc: "radext@ietf.org" <radext@ietf.org>, Michael Richardson <mcr+ietf@sandelman.ca>, "dhcwg@ietf.org WG" <dhcwg@ietf.org>, "homenet@ietf.org" <homenet@ietf.org>
Subject: Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Delegation
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In 3GPP system in this particular setup the first hop router (for the device/cpe) is also the delegating router and the RADIUS client. 

- Jouni


On Nov 19, 2013, at 6:42 PM, "Bernie Volz (volz)" <volz@cisco.com> wrote:

> This must be done by the delegation router (if you are talking about the DHCPv6 packet itself) – as it is the one that constructs the Advertise and Reply messages to the client.
>  
> -          Bernie
>  
> From: Athanasios Douitsis [mailto:aduitsis@gmail.com] 
> Sent: Tuesday, November 19, 2013 11:38 AM
> To: Jouni Korhonen
> Cc: Bernie Volz (volz); radext@ietf.org; homenet@ietf.org; Roberta Maglione (robmgl); dhcwg@ietf.org WG; Michael Richardson
> Subject: Re: [homenet] [dhcwg] PPP, DHCPv6 and Prefix Delegation
>  
>  
> On Tue, Nov 19, 2013 at 6:22 PM, Jouni Korhonen <jouni.nospam@gmail.com> wrote:
> 3GPP system uses these in the above manner i.e. Framed-IPv6-Prefix -> what you put into RA, Delegated-IPv6-Prefix -> what you delegate via DHCPv6. And in this case what was in Framed-IPv6-Prefix goes into OPTION_PD_EXCLUDE.
>  
> Hello,
> 
> In your opinion, should the copying Framed-IPv6-Prefix -> OPTION_PD_EXCLUDE be rather be done (1) by the RADIUS server (assuming that a new separate hypothetical RADIUS attribute exists) or (2) by the delegating router?
> 
> In other words, do you see any benefits in (1)?
> 
> -- 
> Athanasios Douitsis
> 
>