View source for 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)?