KB 113

Is the Cisco 678 configured the same as the 675 for QWest DSL?

Article:113
Created:2001-12-08 14:50:41
Categories:
  DSL

Question or Symptom

I've changed speed/moved/made some minor configuration and Qwest is now saying I need a new router. What's up? Can I configure it the same way?

Resolution

In April, 2001 Qwest changed the DSL protocol that is uses from CAP to DMT. Qwest will support existing users on CAP for at least a couple of years. All new users after April 2001 will use DMT. Also, if you are a CAP user and make a change to your circuit (like moving or changing the speed), Qwest will force you to switch to DMT, which means you may need a new router.

The Cisco 675 only supports CAP. The Cisco 678 can support either CAP or DMT (although it requres a firmware change to support DMT).

The setup on a DMT circuit is the same as for CAP circuits with one exception. You also need to enter these commands:

       set interface wan0-0 disable
       set interface wan0-0 vpi 0
       set interface wan0-0 vci 32
       set interface wan0-0 enable
       write
       reboot 
 

Related URLS

 http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/c600s/c678/index.htm
 http://www.users.qwest.net/~rlutton/ADSL/

Related KB articles

KB 81 How do I configure my Cisco 675 or 678 for Megabit service?

KB 94 How does one set up port forwarding on the Cisco 675 router?

KB 104 How do I set up a Cisco 675 or 678 router to use a routed subnet (instead of NAT)?