The asr9xxusbconsoledriverszip file is an archived package containing the official Cisco USB Console Software. Installing this software creates a virtual serial port on your computer, allowing terminal emulation programs like PuTTY, Tera Term, or SecureCRT to establish a command-line interface (CLI) session. Supported Router Models
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Follow the onscreen prompts and allow the system extension in if prompted. Connecting to the ASR 900 CLI
Download the asr9xxusbconsoledriverszip archive to your local hard drive.
On Linux, the device may appear as /dev/ttyUSB0 but be inaccessible to non-root users. sudo chmod 666 /dev/ttyUSB0 (temporary) or add your user to the dialout group: sudo usermod -a -G dialout $USER . asr9xxusbconsoledriverszip
: Many ASR models feature both an RJ-45 auxiliary/console port and a USB console port. Only one interface can be active at a time, with the USB connection overriding the RJ-45 connection by default.
The definitive file package needed to establish a direct serial connection between a modern computer and Cisco Aggregation Services Routers via a USB interface is .
He dove into his "Emergency" folder on his desktop, a digital graveyard of legacy firmware and outdated manuals. There, tucked between a config file from 2018 and a blurry PDF, was the grail: asr9xxusbconsoledrivers.zip
Click and restart your computer to initialize the virtual COM port subsystem. Verifying the Installation This link or copies made by others cannot be deleted
While the installation process is straightforward, a detailed understanding of the driver's structure, a valid Cisco service contract, and a systematic troubleshooting approach are key to a successful setup. By following this guide, you can establish a reliable USB console connection, giving you the command-line access you need to manage your Cisco ASR 9000 series routers effectively.
When extracted, the ZIP archive usually contains drivers for the following operating systems:
: The zip file typically contains installers for various Windows versions (XP, Vista, 7, 8, 10), notably the xrusbser_ver2100_installer.exe Hardware Compatibility : Primarily used for ASR 900 series routers (
ASR 9xx routers often feature both an RJ45 console port and a USB console port. The USB port typically takes precedence. If a cable is plugged into the RJ45 port simultaneously, it may deactivate the USB port interface. Unplug the RJ45 cable to allow the USB interface to initiate. Try again later
His old serial cable—the one with the chipped plastic housing he’d used for a decade—had finally snapped. In a panic, he grabbed a standard Mini-USB cable, the kind used for old digital cameras, and plugged it into the router’s console port.
asr-9xx_usbconsole_drivers.zip is the official driver package from Cisco that enables Microsoft Windows‑based computers to communicate with the USB console port on ASR 900‑series routers. The file contains the necessary USB‑to‑UART drivers that convert the router’s USB console interface into a virtual COM port recognized by Windows.
Those generic drivers almost always work and are more up‑to‑date.
Once the driver is active, connect your PC to the ASR router's USB console port. In your Device Manager, look under Ports (COM & LPT) to identify the assigned COM port number. To successfully open a terminal session, you must configure your client with the following settings: Baud Rate: 9600 Data Bits: 8 Parity: None Stop Bits: 1 Flow Control: None