Re: FW: I-D Action:draft-ietf-geopriv-dhcp-lbyr-uri-option-03.txt

Ralph

Thanks for the review.

I'll work on a response over the weekend and reply-all, for others 
awareness and comments.

Happy Holidays!

James

At 06:11 AM 12/24/2008, Ralph Droms wrote:
>Here's my review of this draft.  Additional reviews welcome...
>
>Is there a reason not to define a DHCPv6 version of this option in the
>same document?  Seems to me the syntax and semantics would be
>identical for IPv4 and IPv6; all that would be needed would be another
>section defining the DHCPv6 option syntax.
>
> From section 2.1:
>
>    The <Valid-For> field indicates how long, in seconds, the client is
>    to consider this Location-URI valid before performing a refresh of
>    this Option, with a refreshed <Valid-For> value.  A refresh MAY be
>    done merely at the normal DHCP refresh rate, or necessitated by this
>    timer, perhaps with the client just requesting this Option be
>    refreshed.
>
>What is a "refresh of this option"?  I thought the idea is to hand out
>a permanent URI through which other devices can determine the location
>of the DHCP client host.  Under what circumstances would the URI
>change, esp. without the DHCP lease requiring a renewal?  It might be
>clearer to explain that "the client just requesting this Option be
>refreshed" would likely be implemented through a DHCPINFORM/DHCPACK
>message exchange.
>
>Following paragraph:
>
>    It is RECOMMENDED when the counter associated with this <valid-for>
>    value has passed, the client perform a refresh of this Option.  For
>    example, if 600 was the initial value of the <valid-for> field, when
>    300 seconds have passed, the Option SHOULD be refreshed.
>
>I think there might be some text missing in this paragraph referring
>to 1/2 of the <valid-for> value?
>
>First paragraph of section 3:
>
>    The [RFC3046] RAIO MUST be utilized to provide the appropriate
>    indication to the DHCP Server where this DISCOVER or REQUEST message
>    came from, in order to supply the correct response.  That said, this
>    Option SHOULD NOT be in a DISCOVER message, because there is zero
>    knowledge by the client of which Server will answer.
>
>I infer that any one of the RAIO sub-options that can be used to
>determine a client's location would be appropriate here?  Is an RAIO
>the only way in which the DHCP server can determine the client's
>location?  I don't understand the last sentence and the importance of
>"zero knowledge by the client of which Server will answer."
>
>Later in section 3:
>
>    In the case of residential gateways being DHCP servers, they usually
>    perform as DHCP clients in a hierarchical fashion up into a service
>    provider's network DHCP server(s), or learn what information to
>    provide via DHCP to residential clients through a protocol such as
>    PPP.  In these cases, the Location-URI would likely indicate the
>    residence's civic address to all wired or wireless clients within
>    that residence.  This is not inconsistent with what's stated above.
>
>I think the implication here is that the residential gateway will pass
>this option to any devices in the residential network.  If I have that
>right, it might improve clarity to state that expectation explicitly.
>
>- Ralph
>
>On Dec 9, 2008, at 6:20 AM, Ralph Droms wrote:
>
>>Here's another draft the WG should review.  I need to find a least
>>one volunteer to read the DHCP-related portions of this draft and
>>publish comments.
>>
>>- Ralph
>>
>>
>>>>>------ Forwarded Message
>>>>>From: <[email protected]>
>>>>>Reply-To: <[email protected]>
>>>>>Date: Mon,  3 Nov 2008 17:00:01 -0800 (PST)
>>>>>To: <[email protected]>
>>>>>Cc: <[email protected]>
>>>>>Subject: I-D Action:draft-ietf-geopriv-dhcp-lbyr-uri-option-03.txt
>>>>>
>>>>>A New Internet-Draft is available from the on-line Internet-Drafts
>>>>>directories.
>>>>>This draft is a work item of the Geographic Location/Privacy
>>>>>Working
>>>>>Group
>>>>>of the IETF.
>>>>>
>>>>>
>>>>>Title           : Dynamic Host Configuration Protocol (DHCP) Option
>>>>>for a
>>>>>Location Uniform Resource Identifier (URI)
>>>>>Author(s)       : J. Polk
>>>>>Filename        : draft-ietf-geopriv-dhcp-lbyr-uri-option-03.txt
>>>>>Pages           : 11
>>>>>Date            : 2008-11-03
>>>>>
>>>>>This document creates a Dynamic Host Configuration Protocol (DHCP)
>>>>>Option for the downloading of a Uniform Resource Identifier (URI)
>>>>>pointing to the geolocation record of an endpoint.  This URI,
>>>>>called
>>>>>a Location-by-Reference (LbyR), points to a record on a location
>>>>>server which tracks the geolocation of the endpoint.  Once
>>>>>downloaded by an endpoint, this LbyR can be forwarded to another
>>>>>entity, to be dereferenced if this entity wants to learn the
>>>>>geolocation of the sender endpoint.
>>>>>
>>>>>A URL for this Internet-Draft is:
>>>>>http://www.ietf.org/internet-drafts/draft-ietf-geopriv-dhcp-lbyr-uri-option-
>>>>>03.txt
>>>>>
>>>>>Internet-Drafts are also available by anonymous FTP at:
>>>>>ftp://ftp.ietf.org/internet-drafts/
>>>>>
>>>>>Below is the data which will enable a MIME compliant mail reader
>>>>>implementation to automatically retrieve the ASCII version of the
>>>>>Internet-Draft.
>>>>>_______________________________________________
>>>>>I-D-Announce mailing list
>>>>>[email protected]
>>>>>https://www.ietf.org/mailman/listinfo/i-d-announce
>>>>>Internet-Draft directories: http://www.ietf.org/shadow.html
>>>>>or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>>>>>
>>>>>------ End of Forwarded Message
>>>>
>>>>
>>>>
>>>>James - I can't recall if your draft has been discussed in the dhc
>>>>WG; I don't think it has.  Depending on its current state, it
>>>>would be a good idea to get a quick review now, as the WG will
>>>>likely be asked to review it during any last calls.
>>>>
>>>>- Ralph
>>>>
>>>>Begin forwarded message:
>>>>
>>>>>From: "Ralph Droms (rdroms)" <<mailto:[email protected]>[email protected] >
>>>>>Date: November 3, 2008 8:16:49 PM EST
>>>>>To: "DHC WG" <<mailto:[email protected]>[email protected]>
>>>>>Subject: [dhcwg] FW: I-DAction:draft-ietf-geopriv-dhcp-lbyr-uri- 
>>>>>option-03.txt
>>>>>
>>>>>Here's another draft the WG should review.
>>>>>
>>>>>- Ralph
>>>>>------ Forwarded Message
>>>>>From: <<mailto:[email protected]>[email protected]>
>>>>>Reply-To: <<mailto:[email protected]>[email protected] >
>>>>>Date: Mon,  3 Nov 2008 17:00:01 -0800 (PST)
>>>>>To: <<mailto:[email protected]>[email protected]>
>>>>>Cc: <<mailto:[email protected]>[email protected]>
>>>>>Subject: I-D Action:draft-ietf-geopriv-dhcp-lbyr-uri-option-03.txt
>>>>>
>>>>>A New Internet-Draft is available from the on-line Internet-Drafts
>>>>>directories.
>>>>>This draft is a work item of the Geographic Location/Privacy
>>>>>Working Group
>>>>>of the IETF.
>>>>>
>>>>>
>>>>>Title           : Dynamic Host Configuration Protocol (DHCP)
>>>>>Option for a
>>>>>Location Uniform Resource Identifier (URI)
>>>>>Author(s)       : J. Polk
>>>>>Filename        : draft-ietf-geopriv-dhcp-lbyr-uri-option-03.txt
>>>>>Pages           : 11
>>>>>Date            : 2008-11-03
>>>>>
>>>>>This document creates a Dynamic Host Configuration Protocol (DHCP)
>>>>>Option for the downloading of a Uniform Resource Identifier (URI)
>>>>>pointing to the geolocation record of an endpoint.  This URI,
>>>>>called
>>>>>a Location-by-Reference (LbyR), points to a record on a location
>>>>>server which tracks the geolocation of the endpoint.  Once
>>>>>downloaded by an endpoint, this LbyR can be forwarded to another
>>>>>entity, to be dereferenced if this entity wants to learn the
>>>>>geolocation of the sender endpoint.
>>>>>
>>>>>A URL for this Internet-Draft is:
>>>>><http://www.ietf.org/internet-drafts/draft-ietf-geopriv-dhcp-lbyr-uri-option-  
>>>>> >http://www.ietf.org/internet-drafts/draft-ietf-geopriv-dhcp-lbyr-uri-option-
>>>>>03.txt
>>>>>
>>>>>Internet-Drafts are also available by anonymous FTP at:
>>>>><ftp://ftp.ietf.org/internet-drafts/>ftp://ftp.ietf.org/internet-drafts/
>>>>>
>>>>>Below is the data which will enable a MIME compliant mail reader
>>>>>implementation to automatically retrieve the ASCII version of the
>>>>>Internet-Draft.
>>>>>_______________________________________________
>>>>>I-D-Announce mailing list
>>>>><mailto:[email protected]>[email protected]
>>>>>https://www.ietf.org/mailman/listinfo/i-d-announce
>>>>>Internet-Draft directories: 
>>>>><http://www.ietf.org/shadow.html>http://www.ietf.org/shadow.html
>>>>>or 
>>>>><ftp://ftp.ietf.org/ietf/1shadow-sites.txt>ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>>>>>
>>>>>------ End of Forwarded Message
>>>>
>>
>>_______________________________________________
>>dhcwg mailing list
>>[email protected]
>>https://www.ietf.org/mailman/listinfo/dhcwg