IPv6 DNS configuration

As an IT professional, I’ve long been aware of the impending IPv4 exhaustion. To the layperson, this can easily be compared to phone numbers… there are now so many devices connected to the Internet that the size of the number used to identify and reach each of them uniquely is impossible.

IPv6 is a newer addressing system that supports a drastically increased number of addresses/numbers for use. Unfortunately, like Digital TV (in the US), adoption and migration of users and websites is slow.

To do your part as a user, you can change the settings in your gateway/router/modem to allow for IPv6 DNS lookups as most providers already support IPv6 traffic.

You can test your connection here:
http://www.test-ipv6.com/

Here are a few common values, I’ve also provided the Comcast/Xfinity values for reference:

OpenDNS IPv4:

  • 208.67.222.222 (resolver1.opendns.com)
  • 208.67.220.220 (resolver2.opendns.com)
  • 208.67.222.220 (resolver3.opendns.com)
  • 208.67.220.222 (resolver4.opendns.com)

OpenDNS IPv6:

  • 2620:0:ccc::2
  • 2620:0:ccd::2

Google IPv4:

  • 8.8.8.8
  • 8.8.4.4

Google IPv6:

  • 2001:4860:4860::8888
  • 2001:4860:4860::8844

Comcast IPv4:

  • 75.75.75.75
  • 76.76.76.76

Comcast IPv6:

  • 2001:558:feed::1
  • 2001:558:feed::2

REFERENCES:

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