We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message

How Do I Know If My Router Is IPv6 Compatible?

A41202813 asked the Answer Line forum if his router is ready for the new world of IPv6 Internet addressing

A41202813 asked the Answer Line forum if his router is ready for the new world of IPv6 Internet addressing.

The Internet has been tracking devices with 32-bit IPv4 numbers for a very long time. But with less than 4.3 billion possible 32-bit numbers, we're running out of them quick.

The solution is a transition to 128-bit IPv6 numbers. We won't need to worry about running out of these until we have a galactic civilization.

But are you ready for the change? You can easily find out by visiting testmyipv6.com. Once there, click the IPv6-only Test link. You'll know soon enough if your router and everything else is ready for the big transition.

Unfortunately, should your PC fail the test, you'll have no way of knowing if the router is to blame. It's quite likely that your ISP isn't yet ready for IPv6. Last I checked (four days ago as I write this), my own ISP, AT&T, was still an IPv4-only shop.

So if testing won't tell you whether your modem is ready, what will? The published specifications. Check them out on the manufacturer's web site. If you can't find the term IPv6 in the specs, assume that you'll have to replace that router eventually. But there's no need to rush. You've probably got a couple of years yet.

On the other hand, if I was in the market for a new router, I'd make sure to get an IPv6-ready one.

For more on the subject, see When We Run Out of IP Addresses. You might also want to read the original forum discussion.

Contributing Editor Lincoln Spector writes about technology and cinema. Email your tech questions to him at [email protected], or post them to a community of helpful folks on the PCW Answer Line forum.

IDG UK Sites

Windows 10 for phones UK release date, price and new features: When will my phone get Windows 10?

IDG UK Sites

It's World Backup Day 2015! Don't wait another minute: back up now

IDG UK Sites

Get the free Adobe Comp CC iPad app for rapid layout design

IDG UK Sites

New 13-inch Retina MacBook Pro (early 2015, 2.7GHz) review: Just about the greatest upgrade any...