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RE: graceful renumbering of CPE networks

"Bernie Volz (volz)" <volz@cisco.com> Tue, 26 February 2019 15:24 UTC

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From: "Bernie Volz (volz)" <volz@cisco.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
CC: Ole Troan <otroan@employees.org>, Michael Richardson <mcr+ietf@sandelman.ca>, 6man WG <ipv6@ietf.org>
Subject: RE: graceful renumbering of CPE networks
Thread-Topic: graceful renumbering of CPE networks
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Date: Tue, 26 Feb 2019 15:24:42 +0000
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How does a Reconfigure play into the ISP-router recovering its state?

Reconfigure is between the client HGW and the DHCP server. The DHCP server can issue a Reconfigure to the HGW (obviously communication needs to be restored at the ISP-router - hence the bulk leasequery).

Note also that there are two ways for the DHCP server to deliver the Reconfigure to the client - one is to unicast to the client directly, the other is to relay it (this requires the server to retain the Relay-Reply (or Relay-Forw)). Our server supports both methods - the operator can specify when they initiate the Reconfigure.

- Bernie

-----Original Message-----
From: Mikael Abrahamsson <swmike@swm.pp.se> 
Sent: Tuesday, February 26, 2019 9:14 AM
To: Bernie Volz (volz) <volz@cisco.com>
Cc: Ole Troan <otroan@employees.org>; Michael Richardson <mcr+ietf@sandelman.ca>; 6man WG <ipv6@ietf.org>
Subject: Re: graceful renumbering of CPE networks

On Tue, 26 Feb 2019, Bernie Volz (volz) wrote:

> Bulk lease query can be used by ISP-Router.

Yes, and then what? How is DHCP reconfigure initiated towards the HGW?

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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