Console into a Cisco Router via screen command is not working. Can anyone help?

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Level 1

8 points

Console into a Cisco Router via screen command is not working. Can anyone help?

Hello Everyone,

I'm trying to console into a Cisco router to configure it from my Macbook pro. I'm going from USB to Serial via a Prolific 2303, and plugging directly into a Cisco router.

I issue the command ls -l /dev/tty.* and I see tty.usbserial so then I issue the command screen /dev/tty.usbserial and it seems to connect to the router; however the cursor just moves all around the screen, but no text is displayed. This is a known good adapter as it works fine on my Ubuntu laptop. I badly need this to work on my Mac.

Kind regards,

Jonathan

MacBook Pro, Mac OS X (10.7.5)

Posted on Apr 22, 2013 2:56 PM

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Answer 1

Linc Davis

Level 10

209,739 points

Apr 22, 2013 4:53 PM in response to JNFlyer54

PL-2303H / 2303HX / 2303HXD Drivers | Prolific USA

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Answer 2

Apr 22, 2013 5:06 PM in response to JNFlyer54

I use the apple script I wrote to set up a terminal session using screen. You need to be sure the baud rate is the same as the cisco console:

set baudList to {1200, 2400, 4800, 4800, 9600, 19200, 38400, 57600, 115200, 230400}

set baudRate to (choose from listbaudListdefault items {38400})

tell application "Terminal"

set serialDevices to (do shell script "ls /dev/***")

set theDeviceList to (paragraphs of serialDevices) as list

set theDevice to (choose from listtheDeviceList)

do script "screen " & theDevice & " " & baudRate

display dialog "To quit you terminal session type <ctrl-a> then <ctrl-\\>"

end tell

the complete command is spomething like:

screen /dev/tty.usbserial 9600

change the device to match yours and the baud to match as well

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