Access An Cable Modem Through A Router
I have a stand-alone router for my home network. It's plugged into a cable modem set to "Bridge Mode" so they don't fight with each other.
I can access the router's control panel at:
I can also hit the cable modem's control panel at:
Those specific addresses will vary depending on which brand of hardware you have, but it should be possible to get to the cable modem through the router in most cases.
The IP address for the modem doesn't show up in my router's control panel anywhere I can find. So, it may take a little googling to find the right one if you're is different