RFC 2009 (rfc2009) - Page 2 of 27

GPS-Based Addressing and Routing

RFC 2009            GPS-Based Addressing and Routing       November 1996


   3c-iv.                  Hierarchical Router Structure and
                           Multicast Groups..................   18
   3c-v.                   Routing Optimizations.............   19
   3c-vi.                  Router-Failure Recovery Scheme....   19
   3c-vii.                 Domain Name Service Issues........   20
   4.      Router Daemon and Host Library....................   21
   4a.             GPS Address Library - SendToGPS().........   21
   4b.             Establishing A Default GPS Router.........   22
   4c.             GPSRouteD.................................   22
   4c-i.                  Configuration......................   23
   4d.             Multicast Address Resolution Protocol (MARP) 23
   4e.             Internet GPS Management Protocol (IGPSMP).   24
   5.      Working Without GPS Information...................   25
   5a.             Users Without GPS Modules.................   25
   5b.             Buildings block GPS radio frequencies
                   What then?................................   25
   6.      Application Layer Solution........................   25
   7.      Reliability.......................................   26
   8.      Security Considerations...........................   27
   9.      References........................................   27
   10.     Authors' Addresses................................   27

1.      Introduction

   In the near future GPS will be widely used allowing a broad variety
   of location dependent services such as direction giving, navigation,
   etc. In this document we propose a family of protocols and addressing
   methods to integrate GPS into the Internet Protocol to enable the
   creation of location dependent services such as:

     o     Multicasting selectively only to specific geographical
           regions defined by latitude and longitude. For example,
           sending an emergency message to everyone who is currently
           in a specific area, such as a building or train station.

     o     Providing a given service only to clients who are within a
           certain geographic range from the server (which may be mobile
           itself), say within 2 miles.

     o     Advertising a given service in a range restricted way, say,
           within 2 miles from the server,










Imielinski & Navas            Experimental