macbook:user$ cd /dev
macbook:user$ ls -ltr /dev/*usb*
crw-rw-rw- 1 root wheel 9, 66 Apr 1 16:46 tty.usbmodem1a21 DT-macbook:dev user$
Step 4 Connect to the USB port with the following command followed by the router USB port speed:
Example:
macbook:user$ screen /dev/tty.usbmodem1a21 9600
To disconnect the OS X USB console from the terminal window, enter Ctrl-a followed by Ctrl-\
Connecting to the Console Port Using Linux
This procedure shows how to connect a Linux system USB port to the console using the built-in Linux terminal
utility.
Procedure
Step 1 Open the Linux terminal window.
Step 2 Connect the Linux USB port to the router.
Step 3 Enter the following commands to find the Linux USB port number:
Example:
root@usb-suse# cd /dev
root@usb-suse /dev# ls -ltr *ACM*
crw-r--r-- 1 root root 188, 0 Jan 14 18:02 ttyACM0
root@usb-suse /dev#
Step 4 Connect to the USB port with the following command, followed by the router USB port speed:
Example:
root@usb-suse /dev# screen /dev/ttyACM0 9600
To disconnect the Linux USB console from the terminal window, enter Ctrl-a followed by : then quit
Installing the Cisco USB Device Driver
A USB device driver must be installed the first time a Microsoft Windows-based PC is connected to the USB
serial port on the router.
This procedure describes how to install the Microsoft Windows USB device driver in Microsoft Windows
XP, Windows Vista, Windows 2000, Windows 7, and Windows 8. Download the driver for your router model
from the Tools and Resources Download Software site, USB Console Software category.
Installing the Cisco ASR 920 Series Router
66
Installing the Cisco ASR 920 Series Router
Connecting to the Console Port Using Linux
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