1  ENABLE
 

2  AUTOFLUSH
   Enables the automatic flushing of output when you send the
   interrupt character.

   o  Enabled - The data in the data buffer remains visible until
      the buffer is empty.

   o  Disabled - The data buffer is emptied and the display is
      terminated. This provides fast system response to the
      interrupt character.

   Default: ENABLE AUTOFLUSH

   DCL Format

     ENABLE AUTOFLUSH

   UNIX Format

     toggle autoflush
 

2  AUTOSYNCH
   Enables the sending of the synchronization and interrupt
   characters in urgent mode.

   o  Enabled - The local host sends an interrupt character in
      urgent mode, and the remote host immediately processes it.

   o  Disabled - TELNET sends the interrupt character in sequence
      with the other characters in the stream, and the remote host
      processes this character in the sequence received.

   Default: DISABLE AUTOSYNCH.

   DCL Format

     ENABLE AUTOSYNCH

   UNIX Format

     toggle autosynch
 

2  BINARY
   Enables the transmission of data in binary mode.

   o  Enabled - The EOL (end-of-line) character is not mapped to
      Return LF (the carriage return/line feed combination).

      Use ENABLE BINARY when the remote host expects each line to
      end with a carriage return/line feed combination.

      Binary mode provides interaction when the remote host:

      -  Expects special characters.

      -  Does not support automatic negotiation of the TELNET binary
         option.

   o  Disabled - EOL is sent as Return LF (the carriage return/line
      feed combination).

   Default: DISABLE BINARY

   DCL Format

     ENABLE BINARY

   UNIX Format

     toggle binary
 

2  CRLF
   Enables the sending of carriage returns as Return LF (the
   carriage return/line feed combination) at the end of each line.

   o  Use ENABLE CRLF if the remote host expects Return LF at the
      end of each line.

   o  Use DISABLE CRLF if the remote host interprets Return as
      Return LF, which is CR mode.

   Default: ENABLE CRLF

   DCL Format

     ENABLE CRLF

   UNIX Format

     toggle crlf
 

2  CRMOD
   Enables the mapping of received carriage returns. With this
   mapping, the remote host sends each line with Return LF (the
   carriage return/line feed combination) at the end of each line.

   o  Use ENABLE CRMOD if your terminal expects each line to end
      with Return LF.

   o  Use DISABLE CRMOD if your terminal expects Return null at the
      end of each line.

   Default: DISABLE CRMOD

   DCL Format

     ENABLE CRMOD

   UNIX Format

     toggle crmod
 

2  DEBUG
   Enables the display of data in hexadecimal.

   o  Enabled - Data is displayed in both hexadecimal and readable
      text.

   o  Disabled - Data is displayed in readable text.

   Default: DISABLE DEBUG

   DCL Format

     ENABLE DEBUG

   UNIX Format

     toggle netdata
 

3  Example

 % <Ctrl/Z>  (characters not echoed)
 TELNET> enable debug <Return>
 TELNET> display <Return>
    .
    .
    .
 Will print network data flow in hexadecimal
 .
 .
 .
 TELNET>)resume <Return>
 SEND [   0] D A
 RCVD [   0] D A
 RCVD [   0] 746E7069782E6C6B672E6465632E636F6D3E20
 % ls <Return>
 SEND [   0] 6C
 RCVD [   0] 6C l
 SEND [   0] 73
 RCVD [   0] 73 s
 SEND [   0] D A
 RCVD [   0] D A
 RCVD [   0] 62696E20202020202020...
 RCVD [  32] 7074 D A
 french.estud.oiseau     russian.estud.ptitsa     fences
 typescript     verio
 %

     Escapes from a session with a UNIX host, enables debug mode,
     resumes the session, and asks for a list of files in the
     working directory. Both hexadecimal data and readable data
     are displayed.
 

2  LOCAL_CHARS
   Enables the translation of the following terminal control
   characters in to TELNET protocol sequences:

   o  Interrupt

   o  Flush Output

   o  Are You There

   o  Kill

   o  Erase

   o  Quit

   With local characters:

   o  Enabled - The local host sends the control characters (in the
      preceding text) translated into TELNET sequences. For example,
      Ctrl/T becomes IAC AYT.

      Enabled mode is appropriate when the remote and local hosts
      implement different control characters. The remote host does
      not recognize certain control characters. Therefore, the local
      host interprets these control characters before sending them
      to the remote host.

   o  Disabled - The local host sends these control characters
      uninterpreted. They are interpreted by the remote host.

      Before you communicate in disabled mode, ensure that the
      remote and local hosts use the same control characters.

   Default: DISABLE LOCAL_CHARS

   DCL Format

     ENABLE LOCAL_CHARS

   UNIX Format

     toggle localchars
 

2  OPTIONS_VIEW
   Enables the display of option negotiations between the local
   system and the remote host during the session.

   o  Enabled - TELNET displays the option negotiations between your
      local system and the remote host.

   o  Disabled - TELNET does not display the option negotiations.
      This mode is suitable for most communications.

   Default: DISABLE OPTIONS_VIEW

   DCL Format

     ENABLE OPTIONS_VIEW

   UNIX Format

     toggle options