configuration for the cisco model dpc3825 for the X-Box one
Good morning straightcreepin,
For the best access to Xbox Live you are going to want to Login to your Router and forward the applicable ports. A good walkthrough for his can be found here: Port Forwarding the Cisco DPC3825 Router for Xbox Live 360
It shouldn't need configuration, the DPC3825 has UPnP on by default, and can not be turned off.
This should open the ports as needed (your Xbox uses UPnP for the appropriate ports to be forwarded when it turns on).
It should just work
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