New Alert! On May 23, 2002 a new advisory was published by Cisco Systems informing all Cisco 600 series router users of a new Cisco Broadband Operating System (CBOS) firmware vulnerability. Qwest DSL subscribers with Cisco 675 and Cisco 678 routers will be affected by the new advisory along with all service providers using the Cisco 600 series class of routers. The new Cisco Systems advisory outlines specific, identified vulnerabilities in the security of CBOS version prior to and including CBOS 2.4.4. Current known vulnerabilities are addressed and fixed in CBOS version 2.4.6. Qwest strongly recommends all Cisco 675 and Cisco 678 users upgrade to CBOS 2.4.6 to avoid the vulnerabilities associated with older CBOS version. Upgrading to CBOS 2.4.6 can help you avoid unexpected problems that can harm the integrity of your system. If you have a router (identified with the word "Cisco" on the top), you can obtain the upgrade free of charge with step-by-step instructions below. Installation assistance is also available by calling our technical support team at 1-800-247-7285. The new CBOS version 2.4.6 also helps protect against the "Code Red" virus.

For those customers with the Cisco 675/678, a long-term solution is now available. This software solution will help protect your modem from the identified vulnerabilities. You should install this software if you have a Cisco 675 or 678 modem.

LAN Users READ the Following!!
If you have your Cisco modem in use with a LAN, please follow the guidelines below to ensure a successful upgrade.

• You must unplug all devices between the modem and the PC used to upgrade the modem on the ENET port. A direct connection from the modem to the PC is required on the ENET port.
• You must perform a release and renew of your IP address on your PC. Please follow the instructions in the troubleshooting section at the end of the set of instructions for PC Version or Mac Version. Follow troubleshooting procedure 2.

Getting Started

For the correct set of instructions, select your operating system below. To complete the upgrade process, two files must be downloaded. The two files are as follows:

1. The upgrade instruction set, and
2. The upgrade software including CBOS 2.4.6 and Cisco Commander 1.4.2.

We recommend you print the first file that is the upgrade instruction set, after you download the file to your computer.

PC Version for Cisco 675 and 678

For use with Windows® 95, Windows 98, Windows NT, Windows 2000, Windows ME, or Windows XP.

Click here for the steps in Adobe PDF format to open the upgrade instruction set. Then, print the PDF file by clicking File, then Print, on the toolbar.

Click here to download the software file needed to upgrade your modem. Please save this file in the c:/temp directory. Download times could be 5 to 10 minutes.

MAC Version for Cisco 675 and 678

For use with Macintosh® 8.0.1 or higher.

Click here for the steps in Adobe PDF format to open the upgrade instruction set. Then, print the PDF file by clicking File, then Print, on the toolbar.

Click here to download the software file needed to upgrade your modem. Please save this file on your desktop. Download times could be 5 to 10 minutes.

Qwest DSL^TM users having Static IP addresses with a Multiple Subnet Network and NAT enabled behind a Cisco 675/678 router, please perform the following. If you do not have a network configuration as described, please skip this section and continue with the instructions for downloading modem software.

Click here if you have purchased private IP addresses from your ISP and also have a multiple subnet network and NAT enabled behind a Cisco 675/678 router. Additional configurations are required for CBOS 2.4.6 to function properly with your network setup.

Get the free Adobe Acrobat Reader®.