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Join Date: Aug 2009
Console access to routers using USB to Serial Connectors - 09-10-2009, 11:40 PM
On Windows platform I use SecureCRT - to access routers/switches through serial console -
I discovered recently that it is equally easy to do the same from macosx -
You can get any Prolific PL 2303 Chip based USB to Serial connector -
Then - use this driver with support for sending "Break Keys"
PL2303 USB to Serial Driver for Mac OS X | Get PL2303 USB to Serial Driver for Mac OS X at SourceForge.net. -
(Solaris Notes OS X: Send break via serial/usb converter - Source for the link above )
Install Driver -
With USB to Serial connector hooked up -
Open Terminal -
type ls -l /dev/tty.*
among others - you should see an entry like /dev/tty.usbserial or /dev/tty.PL2303-0000203D -
Now to access your router connect console cable to the USB serial connector
and in Terminal type -
screen /dev/tty.PL2303-0000203D 9600 (connect using baud rate 9600)
^c (Control c - to get connected to the serial console ) -
^c-a ^\ to disconnect the session cleanly - (Control-a Control-\)
y to the prompt to quit and kill all windows -
I have verified this with Cisco Routers and Pix firewalls -
I was also able to send break signal to interrupt boot sequence - ( ^-a ^b) -
Hope you guys find this useful.
Join Date: Mar 2009
Location: United States
09-10-2009, 11:44 PM
thanks for the info!
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