What I would like to know is how to change the configuation file in a
Toshiba PCX1100U cable modem. I would like the ability to change this
from my side (end user) WHat are the exact step by step ways to do
this.

http://192.168.100.1/

use that url in your browser..

to update or flash the rom it gets more dificult for the end user to
change the software version.

Thanks
Steve

That IP did not work.. I do need to get into the ROM as well. I need
access to the Speed settings ect..

The speeds are set at the head end.  You'll need to find a way to
break into your cable company DOCCIS servers to change your speed
settings.

More or less illegal in all states, far as I know.

Unless you are authorized to do so, and by that I mean a technician in
charge of the speeds of your modem, it is illegal to change the speeds
on your modem. Although some old cable modems do have the speed
settings at your end, the majority these days are controlled at the
head end where you have no control over it at all.

On my cable system i was told by a tech that I would be able to edit
the DOCSIS on the modem if i wanted to. The only catch for me is the
price of my service goes up as my speed does. However he did not tell
me how to do this.