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Re: [dhcwg] I-D Action: draft-ietf-dhc-rfc3315bis-09.txt - questions about Solicit Prefix Delegation - src LL vs GUA

Ted Lemon <mellon@fugue.com> Wed, 15 November 2017 09:09 UTC

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From: Ted Lemon <mellon@fugue.com>
Date: Wed, 15 Nov 2017 17:09:25 +0800
Message-ID: <CAPt1N1nh0rfi+zhc+emu4V1sZk+hgDpJGKBW_uVNdxp-GuJYMw@mail.gmail.com>
To: Roy Marples <roy@marples.name>
Cc: "Templin, Fred L" <Fred.L.Templin@boeing.com>, dhcwg <dhcwg@ietf.org>, Alexandre Petrescu <alexandre.petrescu@gmail.com>, "Bernie Volz (volz)" <volz@cisco.com>
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Subject: Re: [dhcwg] I-D Action: draft-ietf-dhc-rfc3315bis-09.txt - questions about Solicit Prefix Delegation - src LL vs GUA
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I would have to review, but isn't unicast support optional?

On Nov 15, 2017 16:50, "Roy Marples" <roy@marples.name> wrote:

> On 20/10/17 20:52, Ted Lemon wrote:
>
>> On Oct 20, 2017, at 4:46 PM, Templin, Fred L <Fred.L.Templin@boeing.com
>> <mailto:Fred.L.Templin@boeing.com>> wrote:
>>
>>> Sorry I am late to this discussion, but AERO uses link-local source
>>> address for
>>> all DHCPv6 PD messaging. It works in the public domain implementations I
>>> have been working with.
>>>
>>
>> It's actually nonsensical to use some other address.   One of the
>> purposes of DHCP is to get addresses, so if the server assumes you already
>> have one, how's that going to work?
>>
>
> That's not true.
> Often you need to use a non link-local source address when the server
> sends OPTION_UNICAST with a non link-local address and you want to renew
> the lease.
>
> Roy
>

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