Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Delegation
Michael Richardson <mcr+ietf@sandelman.ca> Tue, 12 November 2013 18:31 UTC
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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Ted Lemon <mellon@fugue.com>
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Date: Tue, 12 Nov 2013 13:31:11 -0500
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Cc: "dhcwg@ietf.org WG" <dhcwg@ietf.org>, "homenet@ietf.org Group" <homenet@ietf.org>, "<radext@ietf.org>" <radext@ietf.org>
Subject: Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Delegation
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Ted Lemon <mellon@fugue.com> wrote: Ted> Historically this has been proposed to be done with a stateful BRAS Ted> that retains authentication information from the PPP client/RADIUS Ted> server authentication process, and provides that to the DHCP server Ted> using a relay option. The DHCP server can then go to the RADIUS Ted> server to get prefix information if appropriate (although I would Ted> argue that this is unnecessary and probably harmful, since it Ted> requires static provisioning for all customers). Some radius servers have the ability to allocate from a pool and the keep that lease for a period of time. Ted> Have you looked at RFC 4014 and RFC 7037? Thank you for the reference, which I missed in scanning relevant WG documents. Reading. Ted> really be a problem. If the RADIUS server were doing dynamic Ted> allocation, it would potentially be a problem since resources that Ted> are committed during the solicit/advertise phase ought to be freed Ted> if no request/reply phase follows. I don't know enough about Ted> RADIUS to know if this ever happens, but it's my understanding that Ted> it does not. It can occur. Ted> Of course, the larger question here is, why the heck would you want Ted> to use PPPoE with all the MTU woes it brings into the picture? I Ted> know the answers that are usually given, but I think this is Ted> something that ought to be treated as a less-preferred approach to Ted> delivering IPv6 service. This is not a greenfield deployment. The existing service(s) is IPv4 PPPoE. To be clear: this is an existing product being updated to support IPv6 because the customers asked for it. (Truly!) PPPoE is also significantly easier for third party operators to work with in many jurisdictions. -- Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
- [dhcwg] PPP, DHCPv6 and Prefix Delegation Michael Richardson
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Ted Lemon
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Michael Richardson
- Re: [dhcwg] PPP, DHCPv6 and Prefix Delegation Roberta Maglione
- Re: [dhcwg] PPP, DHCPv6 and Prefix Delegation Roberta Maglione
- Re: [dhcwg] PPP, DHCPv6 and Prefix Delegation Michael Richardson
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Wuyts Carl
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Roberta Maglione
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Michael Richardson
- Re: [dhcwg] PPP, DHCPv6 and Prefix Delegation Michael Richardson
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] PPP, DHCPv6 and Prefix Delegation Simon Hobson
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Bernie Volz (volz)
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Jouni Korhonen
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Wuyts Carl
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Bernie Volz (volz)
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Roberta Maglione (robmgl)
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Roberta Maglione (robmgl)
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Wuyts Carl
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Jouni Korhonen
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Bernie Volz (volz)
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Roberta Maglione (robmgl)
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Jouni Korhonen
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Jouni Korhonen
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Roberta Maglione (robmgl)
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Athanasios Douitsis
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Jouni Korhonen
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Athanasios Douitsis
- Re: [dhcwg] [homenet] PPP, DHCPv6 and Prefix Dele… Michael Richardson
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Michael Richardson
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Athanasios Douitsis
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Michael Richardson
- Re: [dhcwg] [radext] [homenet] PPP, DHCPv6 and Pr… Athanasios Douitsis