Re: [dhcwg] WGLC for draft-ietf-dhc-dhcpv4-over-dhcpv6-03 - Respond by Dec 9, 2013

Ted Lemon <ted.lemon@nominum.com> Thu, 12 December 2013 04:20 UTC

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From: Ted Lemon <ted.lemon@nominum.com>
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Date: Wed, 11 Dec 2013 23:20:11 -0500
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References: <489D13FBFA9B3E41812EA89F188F018E1ADA99A8@xmb-rcd-x04.cisco.com> <489D13FBFA9B3E41812EA89F188F018E1ADD590C@xmb-rcd-x04.cisco.com> <CAFGoqUMbbH3h2ouf+9JphYoM2wTGK0tiRSSscPMuPB4Xq51XGg@mail.gmail.com>
To: Marcin Siodelski <msiodelski@gmail.com>
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Cc: "dhcwg@ietf.org" <dhcwg@ietf.org>, Bernie Volz <volz@cisco.com>, "draft-ietf-dhc-dhcpv4-over-dhcpv6@tools.ietf.org" <draft-ietf-dhc-dhcpv4-over-dhcpv6@tools.ietf.org>
Subject: Re: [dhcwg] WGLC for draft-ietf-dhc-dhcpv4-over-dhcpv6-03 - Respond by Dec 9, 2013
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On Dec 11, 2013, at 2:39 PM, Marcin Siodelski <msiodelski@gmail.com> wrote:
> Before the client gets the tunnel configuration the tunnel interface
> doesn't exist. The 4o6 client just generates the client identifier
> (unique by IAID) for the tunnel to be established. Once the v4
> configuration is complete, the tunnel is created and the client
> associates the client identifier with this tunnel/interface.

I think it's important to be aware that this function is for "getting an IPv4 configuration," not "configuring an interface."   The document should certainly say as much as it can about what to do with the configuration, but we're really documenting a mechanism here for getting a configuration from a DHCP server, not documenting specific use cases for that mechanism.   So e.g. the expectation is that if lw4over6 uses this mechanism, it will say what to do with the information gathered as a result.   If some future spec needs this mechanism, it will say something that might be quite different. It is un-possible that this mechanism might be used without some other spec referring to it.