IPv6 dual-stack devices on Home Internet connections

Question

Greetings,A colleague at a Canadian University writes a blog about his systems administration work, and has often posted stories about IPv6 implementation on their network.In particular, he and I are both cynical about transitions from IPv4-only to IPv4+IPv6 dual-stack networks.Now as it stands, all of my devices at home were manufactured after 2020 and all have native IPv6 capability and in fact, IPv6 is enabled alongside IPv4 by default, with no particular option to disable it, unless a Developer's Option is unearthed.Now I recently surrendered to my own incompetence and returned my rented Panoramic WiFi modem, because I couldn't achieve a reliable connection after I factory-reset several devices.If there is no malware in the router/computers, and if this user did not make a configuration error, then a third hypothesis is that IPv6 is creating strange anomalies in connectivity, and my devices are being confused by the presence of both stacks, and connectivity may be adversely affected by such things as: individual third-party websites and services which don't support IPv6, temporary protocol outages on the network, problems with address assignment and routing, NAT-related issues in home router, protocol tunnelling or whatever Cox Communications implementation of IP routing beyond the leaf nodes.So what's a workaround? There is no solution, if Chris Siebenmann's assessment is accurate. A workaround could be Cox Communications disables IPv6 for a customer, and their servers stop issuing SLAAC/DHCP6 prefix assignments, and customer equipment goes back to IPv4-only. Or, customer router may have capability to disable and block IPv6 from entry/egress on customer network.And customer hopes that IPv4-only is a reliable solution in 2025.

darkatt · Answer

First of all, ALL internet devices are configurable and you can disable IPv4 and;/or IPv6. Whether it's windows/mac/android, etc etc.

If you have a router, it can be configured on the router to provide, or NOT to provide IPv4 or IPv6.

What router are you using, and I can provide information on how to disable Ipv6 if that's what you are interested in.

anesti33 · Answer

Sure bro,My devices are Android 11, Android 15, and ChromeOS Stable.&nbsp;I'm not interested in a verbal description of steps, but vendor documentation would be great. I had a CGM4141 panoramic router, and it surprised me that it even had LAN-accessible management. The mobile app from Cox panoramic Wi-Fi was interfering with it, causing my own denial of services, in unpredictable ways.&nbsp; I was also surprised that it came with default well-known credentials to manage it and these were not reset by the factory reset, so it was confusing how much of the router that Cox is managing themselves. I wanted less work to do when I rented that modem. Less security risk. I was deluded.What I'm going to do is subscribe to Cox Complete Care. Perhaps they support their mobile apps? I've already emailed the Cox at home help email address for support and this forum post is simply thinking out loud. Thank you&nbsp;&nbsp;

darkatt · Answer

The 4141 is a MUCH older device, Upgrade to the newer device then use the Cox Complete Care and have them walk you through what you are trying to do. The 4141 is old and slow.

You have a PW3 or 4, cannot remember, the latest is a PW8 - Technicolor CGM4981

anesti33 · Answer

No, perhaps you didn't understand: Cox issues the device for us to use. You tell Cox to upgrade me, but I'm not sure why: this thread is about disabling IPv6; why would a newer device be better? Why is "faster" better? It's a legacy DOCSIS network. We're simply waiting for FIOS to go through by next year and then I can cut over to a 5G hotspot or something instead. I need maximum 20-40.Mbps upstream, and 150 Gbibytes/mo.&nbsp;The router or modem is a chokepoint, and I could limp by in Transparent Bridging instead, but all 3 devices are zealously seeking IPv6 connectivity, and there's no turning back.&nbsp;I've disabled Private DNS because that's another can of Morris Worms

darkatt · Answer

Perhaps YOU didn't understand.&nbsp;If the modem or router is a chokepoint, then UPGRADEING to a newer/faster device helps remove that chokepoint.With the exception of the ChromeOS, the OTHER 2 devices CAN have IPv6 turned off, I provided instructions on how to accomplish this.&nbsp;Cox isn't going to simply upgrade your equipment whenever they have newer equipment. If YOURS is working ok, then the status quo prevails. It appears YOURS doesn't meet your requirements on several levels, taking it to the Cox Solution store and exchanging for a newer piece of equipment will help alleviate a couple of those levels.&nbsp;Lastly, the fact that the devices are "zealously" seeking IPv6 connectivity isn't a COX issue. Though the denial of IPv6 can be accomplished on the router, the fact that at least one of your devices CANNOT turn off IPv6 is a ChromeOS thing, not a COX thing. The other 2 devices can have it turned off.&nbsp;I am using a Netgear CM2000 capable of MUCH faster speed than I am signed up for, and it runs flawlessly. My RAXE300 Netgear router is also flawless and I can turn off/on IPv6 at will as well as control many other functions. My Internet is 500 down/50 up and unlimited data. I can go up to 2gb download with my equipment. &nbsp;If I have an issue I take the proper steps to resolve. IF the Cox equipment isn't meeting your needs, do what I did.&nbsp;

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