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javaserial-porttelnet

How to create a telnet connection through Serial port?

I am trying to establish a telnet connection through a serial port in java. I am able to write to the port and confirmed that the data is written to the port using Serial port monitoring tool.

But I don't receive any response in turn.

I am using Java Simple Serial Connection Library/Jar (JSSC.jar)

Can anyone shed some light on this.

Solution

  • I used Java Simple Serial Connection Jar and established a telnet session by the following steps:

    1. Connect to Cisco router
    2. fired the telnet command ciscorouter>telnet xxx.xxx.xxx.xxx xxxx /source-interface ethernetX
    3. Once telnet opened just fired my request query and recieved the response.

    Note: For writing, I use:

        serialPort.writeString("command\r");`

    and:

        byte buffer[] = null;
    String  s = new String(buffer);

    Did not implement listeners as it caused lot of confusion.