Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 option

Ted Lemon <mellon@fugue.com> Tue, 10 December 2019 00:51 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Mon, 09 Dec 2019 16:51:00 -0800
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Cc: "Bernie Volz (volz)" <volz@cisco.com>, Jen Linkova <furry13@gmail.com>, "dhcwg@ietf.org" <dhcwg@ietf.org>, V6 Ops List <v6ops@ietf.org>, "draft-link-dhc-v6only@ietf.org" <draft-link-dhc-v6only@ietf.org>
To: Tomek Mrugalski <tomasz.mrugalski@gmail.com>
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Subject: Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 option
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On Dec 9, 2019, at 4:35 PM, Tomek Mrugalski <tomasz.mrugalski@gmail.com> wrote:
> With that in mind, I tried to find the lowest option code that's
> available. I was not able to find any specific information about prior
> use of codes 102-107, except RFC3679 saying they were returned (and thus
> previously used by someone). Code 108 seems safer than other codes - it
> is below 128, RFC3679 explicitly says that there was an idea to use it
> for swap path, but that must have died quickly if no I-D was ever
> published about it. So it seems like a safe bet.

I tend to agree.