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Network Working Group E. Killian Request for Comments: 779 LLL

                                                            April 1981

                    TELNET SEND-LOCATION Option

1. Command name and code.

 SEND-LOCATION   23

2. 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-LOCATION

Killian [page 1]

RFC 779 April 1981 TELNET SEND-LOCATION Option

4. 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]