[v6ops] Review: draft-ietf-v6ops-unique-ipv6-prefix-per-host

Edwin Cordeiro <edwinsc@gmail.com> Mon, 23 May 2016 15:25 UTC

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From: Edwin Cordeiro <edwinsc@gmail.com>
Date: Mon, 23 May 2016 12:24:52 -0300
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Subject: [v6ops] Review: draft-ietf-v6ops-unique-ipv6-prefix-per-host
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Hello all,

Below is the first review from the Internet Draft Review Team that I'm
mentoring.

Document: draft-ietf-v6ops-unique-ipv6-prefix-per-host-00

Reviewers: Ricardo Pelaez-Negro, Edwin Cordeiro

Review Date: May 23th 2016

Summary: It is a good suggestion for a BCP, but it needs to add DHCP-PD to
it

Comments: The draft proposes the use of an unique /64 for each user
equipment connected to a WLAN gateway. The proposal highlights the benefit
of such approach but fails to analyse possible consequences. I would
support this draft to move forward if these issues are addressed.

Major Issues:
- The DHCPv6-PD is mentioned for the first time only in section 4.3.1 and
later at the "Future Work" session. From my understanding DHCPv6-PD is
capable of implementing the network as desired in this BCP. Considering the
intended status is BCP, I think that DCHPv6-PD should be added as valid
implementation alternative.
- The draft doesn't mention possible issues of giving one /64 for each UE,
for example, a public WIFI with support for 512 users will need a /55
instead of a single /64.

Minor Issues and Nits:
The document has some Nits problems as detailed in:
https://tools.ietf.org/idnits?url=https://tools.ietf.org/id/draft-jjmb-v6ops-unique-ipv6-prefix-per-host-00.txt

Questions:
- Should this document address the best way to logging the prefix assign to
the UE/subscriber?
- Assigning the same unique prefix if the UE/subscriber reconnect to the
same AP, is something that should be considered or avoided?

Best regards,

Edwin Cordeiro