Comcast cable to cisco router

[lauraseymore]

           Hi there,

We are thinking to upgrate our speed with the comcast 50Mb connection and I wonder if there is a way to connect comcast cable directly into the cisco router 2921 avoiding comcast modem. As far as I know comcast modems are not very reliable. Is there is a way of doing this and what kind of int card do I need? I'm having a hard time finding info on this subject.

Thank you,

Laura

[Joseph W. Doherty]

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

Liability Disclaimer

In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

There might not be a card for your 2921.

If yours was a 2821, the hwiw-cable-d-2 might be used, but don't believe it't supported on the 2900 series.  Also, this card was docsis-2 and for 50 Mbps, you would want docsis-3.