Ok just to clarify some things with the ubr924. When you take this out of the box, it is already configured as a bridge. All you really need to do is plug the cable modem interface into your wall using a straight through cat 5 cable, then connect your Ethernet adapter interface on your PC to any one of the ports on the hub using a straight through cat 5 cable. In this scenario, the router is bridging layer 3 traffic, so all the layer 3 information (ip address, dns, etc..) will be provided by the CMTS.

If you are looking at using the ubr924 as a router instead of a bridge, then all you need to do is turn bridging off and turn IP routing on. Here are the commands you would type:

configure terminal
interface e0
no bridge-group 59
no bridge-group 59 spanning-disabled
ip add 192.168.0.1 255.255.255.0
ip nat inside
interface cable 0
ip nat outside
no bridge-group 59 spanning-disabled
no bridge-group 59
no cable-modem compliant bridge
exit
ip routing
ip nat inside source list 1 interface cable-modem0 overload
access-list 1 permit 192.168.0.0 0.0.0.255
ip route 0.0.0.0 0.0.0.0 cable-modem0


Now depending on how you want to setup your LAN you can either configure DHCP on the router to assign ip addresses to your pc's, or setup static ip addresses. if you want DHCP to run on the router just add

configure terminal
ip dhcp pool 1
network 192.168.0.0 255.255.255.0
default-router 192.168.0.1
dns-server A B
domain-name C
lease 10

change "A" and "B" with the appropriate dns server information from your ISP. change "C" to fit your company domain.

now last to add authentication to your router. add these commands


configure terminal
enable secret YOUR_PASSWORD
line vty 0 4
password ANOTHER_PASSWORD

the enable command will restrict people that has direct connection to the router to connect into it. when you log into the router, and you type enable you will have to put that password. The line vty 0 4 is if you want to telnet to it this will be the password you put into it.

that should just about cover it...ive never worked with a ubr router before, but they use IOS commands just like just about any other cisco router, the only difference is it has that cable modem card. it would be like buying a cisco 2600 and adding a cablemodem card into it.