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8 comments

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    rotblitz

    This is not explained in your manual: http://www.cisco.com/web/consumer/pdf/OL-29163-01.pdf

    Login to your device at http://10.0.0.1/ and check under "Connection > XFINITY Network" or "Connection > Local IP Network" if there are fields labeled with "DNS" where you can enter the OpenDNS resolver addresses.

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    tnordeng

    no option for specifying dns servers.  you can on every other router under the sun and on dsl modems but comcast would like for you to use the dns servers they tell you to use by not bothering your pretty little head with dns options.

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    sksrentz

    I am trying to do the same thing on my Xfinity Comcast wireless gateway.  There are fields to reset something called DHCPv6 Beginning and Ending Addresses, but I do not see anywhere to enter the OpenDNS DNS server numbers.

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    mattwilson9090

    Although OpenDNS has IPv6 recursive DNS servers available, they do not provide any of their filtering or other services via IPv6. It is all done via IPv4 so there is no need to look at anything IPv6 (which includes DHCPv6) when configuring OpenDNS. What you need to be looking for are places where you can define the DNS servers. There might or might not be specific instructions for your model of gateway here in the forums, otherwise you will have to just look at everything setting until you find them.

    It's also possible since this device was provided by your ISP that you might not be able to configure what you need on the router for OpenDNS. Then you'd have to configure it on the individual devices on your network, or on a router of your own that belongs to you. Personally, I always advise people to use the device provided by their ISP *only* for the internet connection, and to do all router functions, including Wi-Fi on their own router that they control.

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    icurpnt2
    Cisco Wireless Gateway DPC3939 as of June 2015 has IPV6 DNS application abilities. I don't know if the older versions lacked changing the DNS, but my wireless router accepts both IPV4 and IPV6.
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    rotblitz

    But IPv6 is out of scope here.  You can't use IPv6 anyway if using content filtering, logs and stats features of OpenDNS.

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    rjshurie

    Not answered as I have done this: "Connection > Local IP Network" if there are fields labeled with "DNS" where you can enter the OpenDNS resolver addresses.

    Yet test here https://store.opendns.com/settings/ fails.

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    rotblitz

    Post screen shots of the device pages where you configured the OpenDNS resolver addresses.

    Post also the complete plain text output of the following diagnostic commands:

       nslookup -type=txt debug.opendns.com.

       nslookup -type=txt which.opendns.com. 208.67.220.220

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