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Re: [dhcwg] Martin Duke's Discuss on draft-ietf-dhc-v6only-05: (with DISCUSS and COMMENT)

Lorenzo Colitti <lorenzo@google.com> Thu, 30 July 2020 10:41 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 30 Jul 2020 19:41:38 +0900
Message-ID: <CAKD1Yr0o8vVFYJnGjXMFNifO7f45pnR=z2Jzq4KX504CKizasQ@mail.gmail.com>
To: Jen Linkova <furry13@gmail.com>
Cc: Martin Duke <martin.h.duke@gmail.com>, The IESG <iesg@ietf.org>, draft-ietf-dhc-v6only@ietf.org, "Bernie Volz (volz)" <volz@cisco.com>, dhcwg@ietf.org, dhc-chairs@ietf.org
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Subject: Re: [dhcwg] Martin Duke's Discuss on draft-ietf-dhc-v6only-05: (with DISCUSS and COMMENT)
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Jen,

suggested text LGTM, suggestions inline.

On Thu, Jul 30, 2020 at 10:31 AM Jen Linkova <furry13@gmail.com> wrote:

> However it should be noted that if the network does
> not provide protection from a rogue DHCPv4 server the similar attack
> vector can be executed by setting the Lease Time option value field to
> 0xffffffff.


Suggest "... can be executed by offering an invalid address and setting the
Lease Time option value field to 0xffffffff."


> The latter attack would also affect hosts without
> IPv6-only Preferred option support.


Suggest "...would affect all hosts, not just hosts that support the
IPv6-only Preferred option."

Cheers,
Lorenzo

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