RFC 1060                    Assigned Numbers                  March 1990


                                TELNET OPTIONS

The Telnet Protocol has a number of options that may be negotiated.
These options are listed here.  "Official Internet Protocols" [118]
provides more detailed information.

   Options  Name                                              References
   -------  -----------------------                           ----------
      0     Binary Transmission                                [110,JBP]
      1     Echo                                               [111,JBP]
      2     Reconnection                                        [42,JBP]
      3     Suppress Go Ahead                                  [114,JBP]
      4     Approx Message Size Negotiation                    [133,JBP]
      5     Status                                             [113,JBP]
      6     Timing Mark                                        [115,JBP]
      7     Remote Controlled Trans and Echo                   [107,JBP]
      8     Output Line Width                                   [40,JBP]
      9     Output Page Size                                    [41,JBP]
     10     Output Carriage-Return Disposition                  [28,JBP]
     11     Output Horizontal Tab Stops                         [32,JBP]
     12     Output Horizontal Tab Disposition                   [31,JBP]
     13     Output Formfeed Disposition                         [29,JBP]
     14     Output Vertical Tabstops                            [34,JBP]
     15     Output Vertical Tab Disposition                     [33,JBP]
     16     Output Linefeed Disposition                         [30,JBP]
     17     Extended ASCII                                     [136,JBP]
     18     Logout                                              [25,MRC]
     19     Byte Macro                                          [35,JBP]
     20     Data Entry Terminal                             [145,38,JBP]
     22     SUPDUP                                           [26,27,MRC]
     22     SUPDUP Output                                       [51,MRC]
     23     Send Location                                      [68,EAK1]
     24     Terminal Type                                     [128,MS56]
     25     End of Record                                      [103,JBP]
     26     TACACS User Identification                           [1,BA4]
     27     Output Marking                                     [125,SXS]
     28     Terminal Location Number                            [84,RN6]
     29     Telnet 3270 Regime                                 [116,JXR]
     30     X.3 PAD                                            [70,SL70]
     31     Negotiate About Window Size                      [139,DW183]
     32     Terminal Speed                                     [57,CLH3]
     33     Remote Flow Control                                [58,CLH3]
     34     Linemode                                            [9,DB14]
     35     X Display Location                                 [75,GM23]
    255     Extended-Options-List                              [109,JBP]






Reynolds & Postel                                              [Page 51]

RFC 1060                    Assigned Numbers                  March 1990


                                 DOCUMENTS


   [1]    Anderson, B., "TACACS User Identification Telnet Option",
          RFC-927, BBN, December 1984.

   [9]    Borman, D., Editor, "Telnet Linemode Option",
          RFC 1116, Cray Research, Inc., August 1989.

   [25]   Crispin, M., "Telnet Logout Option", Stanford University-AI,
          RFC-727, April 1977.

   [26]   Crispin, M., "Telnet SUPDUP Option", Stanford University-AI,
          RFC-736, October 1977.

   [27]   Crispin, M., "SUPDUP Protocol", RFC-734, NIC 41953,
          October 1977.

   [28]   Crocker, D., "Telnet Output Carriage-Return Disposition
          Option", RFC-652, October 1974.

   [29]   Crocker, D., "Telnet Output Formfeed Disposition Option",
          RFC-655, October 1974.

   [30]   Crocker, D., "Telnet Output Linefeed Disposition", RFC-658,
          October 1974.

   [31]   Crocker, D., "Telnet Output Horizontal Tab Disposition
          Option", RFC-654, October 1974.

   [32]   Crocker, D., "Telnet Output Horizontal Tabstops Option",
          RFC-653, October 1974.

   [33]   Crocker, D., "Telnet Output Vertical Tab Disposition Option",
          RFC-657, October 1974.

   [34]   Crocker, D., "Telnet Output Vertical Tabstops Option",
          RFC-656, October 1974.

   [35]   Crocker, D. and R. Gumpertz, "Revised Telnet Byte Marco
          Option", RFC-735, November 1977.

   [38]   Day, J., "Telnet Data Entry Terminal Option", RFC-732,
          September 1977.

   [40]   DDN Protocol Handbook, "Telnet Output Line Width Option",
          NIC 50005, December 1985.

   [41]   DDN Protocol Handbook, "Telnet Output Page Size Option",
          NIC 50005, December 1985.

   [42]   DDN Protocol Handbook, "Telnet Reconnection Option",
          NIC 50005, December 1985.

   [51]   Greenberg, B., "Telnet SUPDUP-OUTPUT Option", RFC-749,
          MIT-Multics, September 1978.

   [57]   Hedrick, C., "Telnet Terminal Speed Option", RFC-1079,
          Rutgers University, December 1988.

   [58]   Hedrick, C., "Telnet Remote Flow Control Option",
          RFC-1080, Rutgers University, December 1988.

   [68]   Killian, E., "Telnet Send-Location Option", RFC-779,
          April 1981.

   [70]   Levy, S., and T. Jacobson, "Telnet X.3 PAD Option", RFC-1053,
          Minnesota Supercomputer Center, April 1988.

   [75]   Marcy, G., "Telnet X Display Location Option", RFC-1096,
          Carnegie Mellon University, March 1989.

   [84]   Nedved, R., "Telnet Terminal Location Number Option", RFC-946,
          Carnegie-Mellon University, May 1985.

   [103]  Postel, J., "Telnet End of Record Option", RFC-885,
          Information Sciences Institute, December 1983.

   [107]  Postel, J. and D. Crocker, "Remote Controlled Transmission and
          Echoing Telnet Option", RFC-726, March 1977.

   [109]  Postel, J. and J. Reynolds, "Telnet Extended Options - List
          Option", RFC-861, Information Sciences Institute, May 1983.

   [110]  Postel, J. and J. Reynolds, "Telnet Binary Transmission",
          RFC-856, Information Sciences Institute, May 1983.

   [111]  Postel, J. and J. Reynolds, "Telnet Echo Option", RFC-857,
          Information Sciences Institute, May 1983.

   [112]  Postel, J., and J. Reynolds, "Telnet Protocol Specification",
          RFC-854, Information Sciences Institute, May 1983.

   [113]  Postel, J. and J. Reynolds, "Telnet Status Option", RFC-859,
          Information Sciences Institute, May 1983.

   [114]  Postel, J. and J. Reynolds, "Telnet Suppress Go Ahead Option",
          RFC-858, Information Sciences Institute, May 1983.

   [115]  Postel, J. and J. Reynolds, "Telnet Timing Mark Option",
          RFC-860, Information Sciences Institute, May 1983.

   [116]  Rekhter, J., "Telnet 3270 Regime Option", RFC-1041,
          IBM, January 1988.

   [125]  Silverman, S., "Output Marking Telnet Option", RFC-933, MITRE,
          January 1985.

   [128]  Solomon, M., and E. Wimmers, "Telnet Terminal Type Option",
          RFC-930, Supercedes RFC-884, University of Wisconsin, Madison,
          January 1985.

   [136]  Tovar, "Telnet Extended ASCII Option", RFC-698, Stanford
          University-AI, July 1975.

   [139]  Waitzman, D., "Telnet Window Size Option", RFC-1073,
          BBN STC, October, 1988.

   [145]  Yasuda, A., and T. Thompson, "TELNET Data Entry Terminal
          Option DODIIS Implementation", RFC-1043, DIA, February 1988.
