DSL Configuration Page

Configuring a DSL Modem need not be a difficult task and in fact once it is set you shouldn't have to worry about it again. Isn't that the idea of an always On connection?

The VPI & VCI numbers can be described as the phone number needed for your DSL Modem to connect to the DSL Provider you will be using. Then you simply put in your Username and password and the DSL Modem will connect and stay connected.

VPI & VCI Configuration Page

Click on the above Page which has a list of the VPI & VCI numbers for the Various DSL Providers

Check back here as we continue to expand this list

U.S. Telco DSL ISP Providers

SBC Midwest - Ameritech
SBC - Pacbell and Nevada Bell
SBC - Southwestern Bell
SBC Northeast - SNET
US West/Qwest
Sprint FastConnect



Don't use the CD that comes with the SBC Install Kit, the CD installs all kinds of useless programming

on your Computer that can slow your machine down and gives access to your information away that you

may not want given away.

Here is a link to a site that details how to avoind using the SBC install CD


Attention Qwest Users & Linux Users not using Windows PC or a MAC

You can get up and running with a different Modem other than what Qwest wants you to rent for $5 per month!

UPDATE February 2004 - Qwest has exited the Modem Business!!!

That's right all DSL Users now have a choice of what Modem they want to use and at REAL Market prices.

Also the Qwest Network is changing over to DMT with PPPoA VC-Mux Encapsulation Mode


Qwest Success story February 2004

Success!!! The important bits:

Zoom DSL with Qwest in New Mexico:

Start with defaults

VPI/VCI: 00/32 [Basic Setup]

Bit Swapping: Disabled [Advanced Setup - ADSL Configuration]

PPPoA LLC gave me "PPP1 PPPoA Connected" message but never authenticated. I got back to it & tried PPPoA VC-MUX & couldn't
believe my eyes when I saw IP & DNS ips showing up in the Zoom's system log. Yea!

According to the manual bit swapping should be disabled by default; however, after "Reset to Default" & hard reset it actually comes back

Bit swapping was disabled on the Cisco, so I disabled it on the Zoom. The Zoom's ping times are significantly shorter than with the Cisco
678 - little less than half. I'm getting low 50ms from my desktop to Qwest to thuntek.net & low 90ms from desktop to Qwest to thuntek to
alter.net in Denver to Xmission in Salt Lake City.


October 2003 Qwest success story

You are welcome to add my story to your website. Here's a nutshell of what
it took to get it to work in roughly the order I would do it now.

BTW, I did this with a PowerPC based PC (not a Mac) running Debian Linux.
No x86 and NO WINDOWS. It can be done! This is how adamant I am about choice!

1. Get this info from ISP: vpi/vci

Mode (1483 Bridged IP LLC, in my case) QWEST
DHCP Server name (necessary because my ISP uses dynamic IP assignment)

DNS server IP addresses.

2. Set up Zoom X4 using Advanced Settings. Basic Setup didn't work because I
needed to set DHCP Client Enable and add my ISP's DHCP Host Name.
WAN Settings
Permanent VC Settings: Enabled, vpi/vci from ISP, Static IP and Mask = defaults.
ATM: Service Category=UBR; Bandwidth=0
Encapsulation: 1483 Bridged IP LLC
Bridge: Enabled
Default Gateway:
IGMP: Disabled
PPP: defaults, did not use.
DHCP Client Enabled: checked, Host Name= DHCP server name from ISP (e.g., dhcp.your-isp.net)
Virtual Circuit: 0 Note: The Permanent VC Settings MUST be enabled or it won't work.

I also changed the X4 DNS Configuration to Auto Discovery + User Configured and added my ISP's DNS server IP addresses. All other Advanced Settings were left at factory default.

3. Configure Linux network settings according to X4 User's Manual (page 51).
In my case it was to set my computer to use DHCP to get its IP address.
Reboot computer.

4. After getting everything to work I added a Win98 computer to the X4 USB port. I simply installed the USB drivers from the CD per directions and left the X4 settings alone. Worked first try.

I now have: ISP <--> X4 <--> D-Link 604 DSL/Cable Router <--> LAN. Since the 604 also has a DHCP server and firewall I can set up a true DMZ between the X4 and the 604 in the future if I so desire. I also have a Win2K laptop from work that plugged into the D-Link and also worked first try (it is also configured for DHCP which the 604 provides).


Beware of the following deceptive business practice in place by many of the DSL Providers out there now. Sure looks like they will do anything to get you to get a new DSL Modem from the Manufacturer that they are partners with.

This is what you all too commonly see on their Websites:

Can I use a modem of my choosing for DSL service?

Can I use a modem I already have from another DSL service?

You may use a modem of your choosing or from a previous DSL service, providing it is on our list of supported modem types. To find out if you can use your modem, please contact our sales department at 1.800...

Can you imagine if you had to do that with a Telephone or a Dial Up Modem? It is no different for a DSL Modem.

Update - February 2004: The U.S. DSL Market is starting to open up. Major Phone Companies such as Qwest have stopped the above business practice, they have exited the DSL Modem business and left the Market open to competition.We applaud them for taking this great step for the U.S. Consumers.

We have been getting E-mails about people ordering a DSL Modem to be the new primary Modem and their old Modem to be a back up for troubleshooting. This is a great idea as many times if the DSL service goes down and you have to call Tech support people are told to re-format their hard drives and then told the DSL Modem is bad, then they get a new Modem it still doesn't get a sync light and only then they determine there is a problem with the line bringing DSL to the home. Having a second DSL Modem on hand helps prevent this Nightmare scenario that happens all to often.

The No Wire "Home Run"

Here we will post info about what the DSL signal is and how to have the DSL in your home without having to run wires or have Filters all over your home.

Zoom DSL Modems DSLAM Compatability list page

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Last Updated 01/16/2005