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IP Version 6
Last Updated: Tue, 15 Mar 2016 > Related Articles
IP version 6 (IPv6) is the newest version of the Internet Protocol that allows for continued Internet growth over the existing IP version 4. View general information about this newest Internet Protocol.
Cox is working diligently to ensure all networks, systems, and products are fully IPv6-enabled in preparation for IPv4 address exhaustion and a gradual adoption of IPv6 by the Internet at large. To manage this migration, Cox has established an IPv6 Migration Program so that when the IPv4 addresses are exhausted, we will continue our business operations without interruption.
IPv4 vs. IPv6
IPv4 and IPv6 addresses are not compatible. A computer configured with an IPv4 address is unable to communicate with a computer or website that is configured with an IPv6 address.
Cox Plans for IPv6
There are many IPv4 and IPv6 "transition" technologies that enable IPv4 and IPv6 host to communicate with each other. Cox has chosen "dual stack" as our transition method.
- In "dual stack", every networking device, computer, server, switch, router and firewall in the Cox network will be configured with an IPv4 and an IPv6 address, meaning "dual stacked."
- This enables Cox to process either IPv4 or IPv6 traffic at the same time.
We have created a short video to explain the IPv6 transition. Click the button below to view it.
IPv4 and IPv6 Differences
View the following questions and answers about differences between IPv4 and IPv6. If you have additional questions, you can contact us.
IPv6 addresses are 128 bit where IPv4 addresses are 32 bit.
- IPv6 address: 2001:0578:0123:4567:89AB:CDEF:0123:4567
- IPv4 address: 192.168.1.2
View the following questions and answers about the exhaustion of IPv4 addresses. If you have additional questions, you can contact us.
View the following questions and answers about Cox's plans for support of IPv6. If you have additional questions, you can contact us.
IPv6 is not supported on all customer equipment, so in order to receive IPv6 addressing and communicate with other IPv6 devices on the Internet, the following are needed:
- A DOCSIS 3.0 cable modem, WiFi Modem, or WiFi Internet & Telephone modem. See Cox Approved Cable Modems for a list of all Cox network approved modems.
Note: If using a standalone router, it must be IPv6 capable. Contact the manufacturer to ensure compatibility. Also, ensure that the router is upgraded to the most current firmware release, as vendors often put IPv6 fixes into their updates.
- An operating system that is capable of IPv6. See minimum operating systems versions below.
- Windows Vista or higher
Note: Windows 8 is preferred.
- Mac OS 10.6 or higher
- Android OS 4.2 or higher
- Apple iOS 4.1 or higher
- Windows Vista or higher
Important: Cox recommends that the latest updates or patches to your operating system are installed for the best experience.
All residential Cox customers in all markets now have access to IPv6, with the exception of the following.
- Only Cable Modems and Voice modems are currently enabled to pass IPv6 traffic.
- WiFi Modems will be enabled for IPv6 during second quarter of 2016.
- G1GABLAST and Cox Business customers will have IPv6 enabled at a later date with a target of 2016.
The majority of retail home routers, especially those produced within the last few years, are fully IPv6-compatible. Cox has determined that Apple AirPort Extreme routers, including Time Capsule models, can experience Internet connectivity problems when running IPv6 on firmware versions 7.7.3 and earlier. Customers can resolve the issue by disabling IPv6 from the AirPort Utility on the iOS or OS X device. For more information and steps to resolve, contact Apple Support.