Xfinity Router --> External HD --> Wifi?

[paymonGT]

Hey guys,
I have the Xfinity cable modem/router (SMCD3GNV), and I just realized there is a USB port on it. I just connected my external HD to this USB port which powers it up. Does anyone have any clue as to how I could access the hard drive's contents over my WiFi? Not finding much out via the Googles..

I have a NetGear WNDR3300 router connected to the modem which has 4 LAN inputs, no USB.

Thanks

 

[BrianBaughn]

My guess is that the firmware on the device doesn't support the USB port. A good indication would be if there's any mention of the port in the router setup web pages.