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To halt unauthorized IPv6 traffic in your network, you also need to halt unauthorized IPv6 tunnels hiding in IPv4 traffic. There are many forms of tunnels you might want to control including Teredo, ISATAP, 6to4, 6in4, 6over4. Even GRE 6in4 tunnels might be a concern. In fact, every IPv4 network should also control IPv4 traffic tunneling in ...Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. If you have questions about your services, we're here to answer them. We can help with technical issues, …Wan set to DHCPv6. DHCPv6 client configuration. mode basic. Request only an IPv6 prefix checked. Prefix delegation size 64. Send IPv6 prefix hint checked. Use IPv4 connectivity checked. On the Windows servers I used the prefix provided and set static IPv6 Addresses using the prefix with ::2 and ::3 for each.In a somewhat controversial move, Comcast is giving each of its home networking users what’s called a /64 block of IPv6 addresses, which represents more than 18 quintillion IPv6 addresses or ...To set up an IPv6 Internet connection on your NETGEAR router: Launch a web browser from a device that is connected to your router's network. Enter www.routerlogin.net. A login window displays. Enter your user name and password. The default user name is admin. Comcast's IPv6 actually works really well, a lot of providers do not implement it as nicely as they do. A few IPv6 tips though as a first-timer: Make sure you have proper firewall rules in place on your router, because with IPv6 each computer\device on your network will have a globally routable IP address (which they currently don't). On further inspection, I am actually losing IPv6 connectivity every hour (not every two hours). Rebooting the modem restores IPv6 connectivity for an hour and then the modem stops routing traffic again. So my theory about the problem being related to 2 hour WAN DHCP leases may be incorrect. (Renewing a lease should not break connectivity but ...XfinityJorge. +18 more. Official Employee. •. 1.2K Messages. 1 year ago. Hello there @Matthewfarnham0 thanks for contacting our Forums team and we are happy to help. You came to the right place for help, are you using your own equipment or ours?I figured I will share a trick that made my Comcast Busines IPv6 connection a bit more useful. I do have a Comcast Business connection and pay for a static /29 for IPv4. Note that Comcast does advertise, but not actually support static IPv6 addresses. So this is provided "as is" and "works for me". The IPv6 address assigned to the modem has ...On an almost daily basis I am getting IPv6 INPUT drop, IPv6 FORWARD drop, and WANATTACK drop in my router's firewall log and losing my network connection. Likely happening when using Microsoft Teams and Zoom for meetings using computer video and audio. Seen this same problem all over these forums and have yet to see a resolution.Overview of Xfinity Gateways. Xfinity Gateways and xFi Gateways are all-in-one devices that deliver internet and voice connectivity, whole-home WiFi coverage, network security, control and speed for the ultimate connected experience. General features of our latest devices, the xFi Advanced Gateways, include: Secure wireless home network with ...NOW WiFi Pass. Access to millions of hotspots. No commitments. Special offer — only $10 for each 30-day pass. Save on Xfinity Digital Cable TV, High Speed Internet and Home Phone Services. Enjoy entertainment your way with great deals on Xfinity by Comcast.You can effectively disable DHCP over IPv4 by making the lease pool only one IP wide, and make that a reservation for your your PiHole server. But you can't disable IPv6 or set an internal IPv6 DNS server, so devices will still use Comcast even if you use another device for IPv4 DHCP. Best way I was able to work around it was change the DNS ...Change Router priority to High. Save and Apply Settings. At this point, you should see IPv6 address show up for each interface configured on the Status > Dashboard. You may need to reboot the router and/or modem as well. Additionally, connected devices should receive IPv6 addresses. Comcast, IPv6, pfSense. ← desktop audio → random snippets.Test your connection fast with Xfinity's internet speed test tool and get tips on how to improve your internet performance.Whether you’re a new customer or an old one, you know that Xfinity internet is a capable service that makes streaming, gaming, and other online activities faster and more enjoyable...Sep 13, 2020 ... It has options to enable DHCP for IPv6 or provide static info. DHCP for IPv6 is enabled and the router has an address, delegated prefix and ...@user_c5b358 If you are using Xfinity equipment, you won't be able to disable IPv6. You can on some 3rd party routers/mesh networks -- look for the WAN connection on the router admin setup page, and it's easy on a firewall. Just don't configure IPv6 on the external interface. Depends on what you have to work with.Sep 18, 2022 ... ... 5:04. Go to channel · Comcast IPv4 Fix---How to Fix IPv4/IPv6 'No Internet Access' Error. SupremeLeader•39K views · 8:22. Go to channel&n...Jul 8, 2013 · If you are a Comcast customer, you simply need to go to www.comcast6.net where you will see at the top of the page the current status in your region. Here is a screen shot from one of our team members who is a Comcast customer: As shown in Comcast’s blog post, if both your regional “ CMTS ” and your cable modem support IPv6 you will see ... Yes. If the settings are present and configurable, use DHCPv6 with PD (Prefix Delegation) and RA (Router Advertisement. You may need to also allow ICMPv6. Good luck ! I am not a Comcast Employee. I am a Customer Expert volunteering my time to help other customers here in the Forums.

IPv6 is the latest version of the Internet Protocol, which identifies devices across the internet so they can be located. ... Comcast and AT&T have their networks at 70% and 73%, respectively ...Wan set to DHCPv6. DHCPv6 client configuration. mode basic. Request only an IPv6 prefix checked. Prefix delegation size 64. Send IPv6 prefix hint checked. Use IPv4 connectivity checked. On the Windows servers I used the prefix provided and set static IPv6 Addresses using the prefix with ::2 and ::3 for each.Comcast performed well in an Internet speed study released Wednesday, but the federal report could still be a blow to the cable giant’s plan to buy Time Warner Cable. Comcast perfo...Dec 14, 2023 · If you have to setup a dhcpv6 server inside, use a /64 prefix. Set an arbitrary range -- something like ::1000 to ::2000. I use ravd to provide DNS servers I specify, but depending on how yours works, you make have to enter some IPV6 DNS servers to pass out someplace else. Hope that's a start. ( edited) 0.

Yes and no. The static IPv6 is a prefix delegation and if you have an IPv6 compliant router it can accept that prefix delegation and subsequently assign or allow you to assign static IPv6 address it devices attached to your network. The caveat here is that your router is at the mercy of your cable modem in terms of which subnet (s) are assigned ...Many people are familiar with Comcast, one of the leading providers of cable and internet services in the United States. What some may not know is that Comcast also owns Xfinity, a...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. The Comcast equipment is a Cisco type-BWG . Possible cause: To halt unauthorized IPv6 traffic in your network, you also need to halt .