Re: DHCP options for civil locations

Hi Henning,

This is a fairly US centric. For example, it woud be very difficult to
represent a Japanese address using this system. I'd suggest adding ISO
top level location (country), and changing state to "second-level
location" (state, province, region, but well-defined worldwide). you
could also remove county and district and add third/fourth/fifth level
administrative regions (county, township, and probably district in the
US). Likewise, you may want to add a hierarchy of community name.

For example: Japan has an address hierarchy. I have probably butchered
it, but this should get the point across

to/fu or ken/do metropolis or prefecture (these are ISO level 2
regions)
shi or gun city or rural area
ku ward (only within a "to" or "shi")
chou or mura town or village
chome district
ban block

I originally researched this from a set of books that I no longer have,
but I found a short description at:
http://www.csse.monash.edu.au/~jwb/afaq/addresses.html

---------

i once proposed a hierarchical format for civil names name incorporated
this general idea.

administrative regions
a1 = top level (country)
a2 = second level (state, province, region)
a3 = county, shi, gun
a4 = township, chou?, mura?
a5 = smaller administrative division
...

habitated area
h1 = metropolitan area
h2 = city or town
h3 = ward, major town division, ku
h4 = district, chome
h5 = subdistrict, block, ban

road or way (by way of example)
r1 = primary, major road, multiple lanes, sealed
r2 = secondary major road
r3 = business thoroughfare
r4 = residential artery
r5 = residential feeder
r6 = other residential road or track
r6 = private or minor road or track
r7 = etc..

my house would be:
<a1>us</a1>
<a2>ca</a2>
<a3>santa cruz county</a3>
<h1>greater santa cruz</h1>
<h2>city of santa cruz</h2>
<h3>westside</h3>
<h4>linda vista district</h4>
<r6>ladera drive</r6>

You can represent a Japanese address, and even an address like this one
(yes this is their real postal address sans postal code):

The Gibsons
Barmby on the Marsh
Near Goole
North Humberside
UK

hope this helps.
thanks,
-rohan

On Thursday, December 5, 2002, at 10:32 AM, Henning Schulzrinne wrote:

> Inspired by the Polk/Linsner/Schnizlein draft on using DHCP for
> conveying geospatial location information to client, I wrote up a
> complementary draft on civil locations:
>
> draft-schulzrinne-geopriv-dhcp-civil-00
>
> Until it appears in the archives, you can find it at
> http://www.cs.columbia.edu/~hgs/sip/drafts/draft-schulzrinne-geopriv-
> dhcp-civil-00.txt
>
> Usage would be similar and complementary to the DHCP-geo draft, i.e.,
> it would allow clients to determine their current (approximate)
> location at boot or network join time.
>
> This is still very immature work; I would appreciate feedback.
>
> Henning
>
Received on Fri Dec 6 17:12:56 2002