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Network Working Group                                         E. KillianRequest for Comments: 779                                            LLL                                                              April 1981TELNET SEND-LOCATION Option1.  Command name and code.   SEND-LOCATION   232.  Command meanings.   IAC WILL SEND-LOCATION      The sender REQUESTS or AGREES to use the SEND-LOCATION option to      send the user's location.   IAC WON'T SEND-LOCATION      The sender REFUSES to use the SEND-LOCATION option.   IAC DO SEND-LOCATION      The sender REQUESTS that, or AGREES to have, the other side use      SEND-LOCATION commands send the user's location.   IAC DON'T SEND-LOCATION      The sender DEMANDS the other side not use the SEND-LOCATION      option.   IAC SB SEND-LOCATION <location> IAC SE      The sender specifies the user's location to the other side via a      SEND-LOCATION subnegotiation.  <location> is a sequence of ASCII      printable characters; it is terminated by the IAC SE.3.  Default.   WON'T SEND-LOCATION   DON'T SEND-LOCATIONKillian                                                         [page 1]

RFC 779                                                       April 1981TELNET SEND-LOCATION Option4.  Motivation for the option.   Many network sites now provide a listing of the users currently   logged in giving their names and locations (see the NAME/FINGER   protocol,RFC 742).  The location is useful for physically locating   the user if he or she is nearby, or for calling them (a nearby phone   number is often included). However, for users logged in via the   network, the location printed is often no more than the originating   site name. This TELNET option allows the user's TELNET program to   send the user's location to the server TELNET so that it can be   displayed in addition to the site name.  This functionality is   already present in the SUPDUP protocol (RFC 734).5.  Description of the option.   When the user TELNET program knows the user's location, it should   offer to transmit this information to the server TELNET by sending   IAC WILL SEND-LOCATION.  If the server's system is able to make use   of this information (as can the ITS sites), then the server will   reply with IAC DO SEND-LOCATION.  The user TELNET is then free to   send the location in a subnegotiation at any time.Killian                                                         [page 2]