< draft-ietf-geopriv-dhcp-civil-08.txt   draft-ietf-geopriv-dhcp-civil-09.txt >
GEOPRIV H. Schulzrinne GEOPRIV H. Schulzrinne
Internet-Draft Columbia U. Internet-Draft Columbia U.
Expires: June 23, 2006 December 20, 2005 Expires: July 20, 2006 January 16, 2006
Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic
Addresses Configuration Information Addresses Configuration Information
draft-ietf-geopriv-dhcp-civil-08 draft-ietf-geopriv-dhcp-civil-09
Status of this Memo Status of this Memo
By submitting this Internet-Draft, each author represents that any By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes have been or will be disclosed, and any of which he or she becomes
aware will be disclosed, in accordance with Section 6 of BCP 79. aware will be disclosed, in accordance with Section 6 of BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
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This Internet-Draft will expire on June 23, 2006. This Internet-Draft will expire on July 20, 2006.
Copyright Notice Copyright Notice
Copyright (C) The Internet Society (2005). Copyright (C) The Internet Society (2006).
Abstract Abstract
This document specifies a Dynamic Host Configuration Protocol (DHCPv4 This document specifies a Dynamic Host Configuration Protocol (DHCPv4
and DHCPv6) option containing the civic location of the client or the and DHCPv6) option containing the civic location of the client or the
DHCP server. The Location Configuration Information (LCI) includes DHCP server. The Location Configuration Information (LCI) includes
information about the country, administrative units such as states, information about the country, administrative units such as states,
provinces and cities, as well as street addresses, postal community provinces and cities, as well as street addresses, postal community
names and building information. The option allows multiple names and building information. The option allows multiple
renditions of the same address in different scripts and languages. renditions of the same address in different scripts and languages.
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the DHCP server to the client, due to security concerns related to the DHCP server to the client, due to security concerns related to
using DHCP to update the database. Within the GEOPRIV architecture using DHCP to update the database. Within the GEOPRIV architecture
as defined by RFC 3693 [11], the defined mechanism in this document as defined by RFC 3693 [11], the defined mechanism in this document
for conveying initial location information is known as a "sighting" for conveying initial location information is known as a "sighting"
function. Sighting functions are not required to have security function. Sighting functions are not required to have security
capabilities and are only intended to be configured in trusted and capabilities and are only intended to be configured in trusted and
controlled environments. (A classic example of the sighting function controlled environments. (A classic example of the sighting function
is a Global Positioning System wired directly to a network node.) is a Global Positioning System wired directly to a network node.)
After initial location information has been introduced, it MUST be After initial location information has been introduced, it MUST be
afforded the protections defined in RFC 3694 [12]. Therefore, afforded the protections defined in RFC 3694 [12]. Therefore,
location information MUST NOT be sent from a DHCP client to a DHCP location information SHOULD NOT be sent from a DHCP client to a DHCP
server as is normally allowed by DHCP. server. If a client decides to send location information to the
server, it is implicitly granting that server unlimited retention and
distribution permissions.
End systems that obtain location information via the mechanism End systems that obtain location information via the mechanism
described here then use other protocol mechanisms to communicate this described here then use other protocol mechanisms to communicate this
information to an emergency call center or to convey it as part of information to an emergency call center or to convey it as part of
presence information. presence information.
Civic information is useful since it often provides additional, Civic information is useful since it often provides additional,
human-usable information particularly within buildings. Also, human-usable information particularly within buildings. Also,
compared to geospatial information, it is readily obtained for most compared to geospatial information, it is readily obtained for most
occupied structures and can often be interpreted even if incomplete. occupied structures and can often be interpreted even if incomplete.
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This document and the information contained herein are provided on an This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Copyright Statement Copyright Statement
Copyright (C) The Internet Society (2005). This document is subject Copyright (C) The Internet Society (2006). This document is subject
to the rights, licenses and restrictions contained in BCP 78, and to the rights, licenses and restrictions contained in BCP 78, and
except as set forth therein, the authors retain all their rights. except as set forth therein, the authors retain all their rights.
Acknowledgment Acknowledgment
Funding for the RFC Editor function is currently provided by the Funding for the RFC Editor function is currently provided by the
Internet Society. Internet Society.
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