How to unsupress local echo

telnet echo
Robert picture Robert · Jul 8, 2009 · Viewed 42.1k times · Source

I am trying to suppress the local echo of a password in a telnet session by sending 0xFF 0xFD 0x2D (IAC DO SUPPRESS_LOCAL_ECHO). This works fine.

My trouble is enabling the local echo after the password. I am sending 0xFF 0xFE 0x2D (IAC DONT SUPPRESS_LOCAL_ECHO). But I don't see any of my commands that I type afterwards.

I am using the MS Telnet program to connect.

The IAC is describe here.

The Suppress Local Echo is defined here

Answer

Wouter van Nifterick picture Wouter van Nifterick · Jul 12, 2009

During your telnet sessions in telnet.exe you can pop up the telnet prompt by pressing Ctrl + ]

After that, type "set localecho" or "unset localecho" to switch localecho on or off.

Press Enter to return to your telnet session.

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