These are my notes for setting up the Cisco 675 for Qwest.net in PPP mode with a Dynamic IP.
I've compiled this info from various sources on the web, the qwest.dsl and comp.dcom.xdsl newsgroups as well as from from my own experiences. I hope you find these pages useful.
My thanks to all of you out there who share your knowledge and experience with the rest of us.
I've tested most of this info on my Win98 and Linux systems with Qwest.net ADSL in PPP mode and a dynamic IP. I am by no means an expert at this. If you find errors or have more to share, please let me know.
08/28/05 - Updated Configuration Backup notes. Thanks James, for the solution.
12/16/01 - Updated Netmeeting notes on Specific NAT settings page .
08/07/01 - Code Red worm info.

Note: Qwest has released an installation wizard that will install CBOS 2.4.3 on either a 675 or a 678. CBOS 2.4.3 is not affected by the worm.

Another thing to do is to use filters to block internet access to the router's interfaces.

CBOS 2.3 and above:

set fi 18 on allow incoming all 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0
set fi 19 on allow outgoing all 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0
set fi 0 on deny incoming wan0-0 0.0.0.0 0.0.0.0 10.0.0.1 255.255.255.255
write

CBOS 2.2 and below:

set filter 0 on deny wan0-0 0.0.0.0 0.0.0.0 10.0.0.1 255.255.255.255
write

03/24/01 - Added notes about the CBOS 2.4.1 password bug.
03/10/01 - Added info on using TFTP to backup/restore your settings. See the Configuration Backup page.
03/04/01 - Added 2.4.1 NAT port range info the NAT Routing page and 2.4.1 filter syntax to the Security page.
03/03/01 - CBOS 2.4.1 has been released! See the CBOS Upgrade page for a link.
11/22/00 - Added VPN info to the Specific NAT settings page.
11/20/00 - Added download speed test file linkages courtesy of Scott Z.
11/20/00 - Added procedure to recover rather than reset lost passwords to the Misc Notes page.
11/12/00 - Added notes about using the NAT wildcard on multiple PCs to the NAT Routing page.
10/07/00 - Updated the Linux config page and added a glossary. Thanks to Art Wagner for both.
05/20/00 - Added links to CBOS 2.3.0 info.
05/16/00 - Added a few more items to the NAT settings page.
01/23/00 - Added a Quick Start page.
01/22/00 - Added some info on the use of filters to the Security page.
01/15/00 - Added info on how to block sensitive ports and still use the NAT wildcard with CBOS 2.2. See the Security page.
01/15/00 - Added info on NAT table order vs the wildcard with CBOS 2.2. to the NAT Routing page.
01/08/00 - Additional udp/icmp timeout info for CBOS 2.2 with wildcards and online gaming to NAT Routing and NAT settings pages.
01/08/00 - Additional info related to ICQ and CBOS 2.2 wildcard usage on NAT settings page.
11/20/99 - Added ICQ udp timeout fix to NAT settings page.
11/20/99 - Minor changes to NAT Routing page.
11/16/99 - Updates to Linux DHCP page.
11/15/99 - Pulled JavaScript from site until I can make it work better on a wider variety of browsers.
11/13/99 - Added Appleshare to the " Specific NAT settings" page.
11/09/99 - Changes to Line Quality Tweaks on Misc page.
11/03/99 - Added ability to view without JavaScript enabled.
11/03/99 - Changes to CBOS Upgrade notes.
11/03/99 - Added this updates list.
10/30/99 - Added/rearranged links.