Internet Help

Security

How can I improve my resilience to denial-of-service attacks?
We strongly recommend all Cisco® 675/678 users upgrade to Cisco Broadband Operating System (CBOS) version 2.4.6 to avoid the vulnerabilities associated with older CBOS versions. Use our firmware update downloads and instructions to update your modem.

On May 23, 2002 Cisco Systems® published an advisory informing all Cisco 600 series users of a new firmware vulnerability. The Cisco Systems advisory outlines specific, identified vulnerabilities in CBOS security of older versions.

Networking

What are static IP addresses and how can I get them?
A static IP address is a unique numeric address that identifies your computer on the Internet. Qwest, as your Internet Service Provider (ISP), can assign a static IP address to be a permanent address for your computer. Learn more.

How can I share my high-speed Internet connection on a Local Area Network (LAN) using my Cisco® 675/678?
If you have a LAN and you want to share your high-speed Internet connection among the computers on the LAN using your Cisco 675/678 modem, see our Networking page for resources that may help you.

Setup and Configuration

• How do I configure the modem using PPP with a Dynamic IP or a Single Static IP?
  1. If you’re configuring the modem using Telnet, first set the EXEC password so you can connect to the modem once configuration is complete.
  2. Then, use these instructions (PDF) to configure the modem.

• How do I configure the modem using PPP with multiple static IPs?
  1. If you're configuring the modem using Telnet, first set the EXEC password so you can connect to the modem once configuration is complete.
  2. Then, use these instructions (PDF) to configure the modem.
  3. Now you’ll need to manually add the static IPs to the computer’s TCP/IP. Choose your operating system from the list below to view instructions.
     • Windows® XP - Add Static IP (PDF)
     • Windows ME - Add Static IP (PDF)
     • Windows 2000 - Add Static IP (PDF)
     • Windows 98 - Add Static IP (PDF
     • Windows 95 - Add Static IP (PDF)
     • Mac OS® X (10.3) - Add Static IP (PDF)
     • Mac OS X (10) - Add Static IP (PDF)
     • Mac OS 8/9 - Add Static IP (PDF)

• How do I configure the modem using PPP with multiple static IPs and dynamic IPs?
  
  1. If you're configuring the modem using Telnet, first set the EXEC password so you can connect to the modem once configuration is complete.
  2. Then, use these instructions (PDF) to configure the modem.
  3. Now you’ll need to manually add the static IPs to the computer’s TCP/IP. Choose your operating system from the list below to view instructions.
     • Windows® XP - Add Static IP (PDF)
     • Windows ME - Add Static IP (PDF)
     • Windows 2000 - Add Static IP (PDF)
     • Windows 98 - Add Static IP (PDF
     • Windows 95 - Add Static IP (PDF)
     • Mac OS® X (10.3) - Add Static IP (PDF)
     • Mac OS X (10) - Add Static IP (PDF)
     • Mac OS 8/9 - Add Static IP (PDF)

• How do I configure the modem using RFC 1483 (Bridge)? (PDF)
• How do I set the EXEC Password? (PDF)
• How do Windows® users set the EXEC Password in Commander? (PDF)
• How do Macintosh® users set the EXEC Password in Commander? (PDF)
• How do I set up port forwarding? * (PDF)
  *This function is not supported by Qwest® Broadband Technical Support and should only be used by advanced network administrators.