OpenDNS is now part of Cisco Learn More


Looking for IPv6 information for Cisco Umbrella? Visit:

Get Your Network Ready for IPv6

The last block of IPv4 addresses have been allocated, and it’s time to get your network ready. OpenDNS now supports IPv6 addresses — meaning that, by using the OpenDNS Sandbox, you’ll be able to resolve your DNS using IPv6 DNS servers.

Why IPv6?

IPv6 supports a far larger number of addresses than IPv4, which is why the change is taking place now — since IPv4 was implemented in 1981, the Internet has grown dramatically, and there are no more available IPv4 addresses.

How to use IPv6

1) Verify you have IPv6 Enabled

You can visit Kame to verify you have a working IPv6 IP address. If you see a swimming turtle, you are ready to continue configuring. If you don’t, perhaps you need an IPv6 Tunnel setup, like the free one you can get at

2) Enter the OpenDNS IPv6 IPs:



3) Test your settings:

4) You’re ready for IPv6. Share your success!

Note: IPv6 support in OpenDNS is limited to standard recursive DNS.