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, …With the lack of information on the Netgear CD300DCR trial for IPv6, all I can do is surmize: It gets a /56 from the CMTS or Comcast BCI DHCP servers and presents that on the LAN; my router (Ubuntu) pulls a /64 which it allocates to my "WAN" interface; using wide-dhcp and a prefix of ::/64 I can get it to allocate an IA_PD for my …We knew it was coming, but on Tuesday, FCC Chairman Ajit Pai announced his plan to gut net neutrality and hand over control of the internet to service providers like Comcast, AT&T...You will need to take your cable mode out of bridge/passthrough mode, and your "router" behind the modem has to do DHCPv6-PD and send a "hint". If your "router" doesn't support dhcpv6-pd functionality, you'll need to connect devices directly to the cable modem to have functional ipv6. If it does have dhcpv6-pd functionality and you have an ipv6 ...Support Internet. Configure Windows 10 Network Settings for Xfinity Internet. This article lists the steps to configure Windows 10 network settings for Xfinity Internet on your …IPV6 - Prefix Delegation Size. Hello, I'm setting up IPV6 for my home network and by default, Comcast is assigning a 64-bit prefix delegation size, which allows only 1 subnet. I have multiple subnets at home and I want to add support for IPV6. According to the last post to this thread, it stated that Comcast no longer accepts hint for /60 prefixes.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, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more.After digging in the router settings and doing some troubleshooting, it appears that I am not getting an IPv6 prefix delegated. This was working before the neighborhood network changes. Now, when I tell the router to use a "Prefix from DHCP-PD", it comes up with an address of fec0:1::0/64. I very much doubt that Comcast is handing me this, as ...Feb 5, 2014 · Comcast’s Speedtest Now Breaks Out IPv6 Speed Vs IPv4 Speed. UPDATE: 18 March 2021 – Back in 2014 when I wrote this post, it outlined an excellent new tool Comcast had released to compare the speed of your connection over IPv4 versus over IPv6. At the time they were rolling out IPv6 into their networks and were also active with a range of ... I am afraid that I must disagree. I set this up - had it working and getting a 10/10 from the COMCAST IPv6 test page and 19/20 from here: IPv6 test - IPv6/4 connectivity and speed test (ipv6-test.com) I would test it every day for more than a week. Then one day I ran the tests again. I got 4/10 from COMCAST page and 13/20 from the other.Somehow, the 2001:558:feed::1 IPv6 DNS server is trying to redirect my website to some other IP. This behavior seems EXTREMELY fishy to me. Domain name is registered through GoDaddy, and the DNS is handled by GoDaddy's DNS servers, which points to my IP address where the site is hosted. The site is actually hosted on a …The Comcast IPv6 DNS servers will be prepended regardless of any other setting, static or dynamic. Additionally, all IPv6 DNS lookups are "intercepted" by Comcast and redirected to their IPv6 DNS servers. IPv6 cannot be disabled overall - even if devices have their IPv6 "turned off", the router will forward v4 to v6 and insert itself in the mix.RV340 and Comcast Xfinity IPv6 Config. 01-03-2021 12:03 PM. I am using Comcast's residential service with an RV340 and a NETGEAR Nighthawk Cable Modem with Voice CM1150V. I have configured IPv6 to be enabled. I seem to be able to get a DHCP IPv6 address at the router (WAN port 1 reports an IPv6 address up in WAN1 config).So, you MUST TURN OFF ALL DHCP SERVERS ON THE COMCAST ROUTER both the IPv4 and IPv6 DHCP Stateful server. if the Comcast router is IP addresss 10.0.10.1 then the Essentials server should be 10.0.10.2. When the Essentials server aks if it's the primary DNS server say YES. When it asks if it's the DHCP server … Getting IPv6 working with Comcast/Xfinity. I had this working but then IPv6 lost connectivity through my clients. So far my setup is a follows: System -> Advanced -> Networking -> Allow IPv6. WAN Interface. IPv6 Configuration Type - DHCP6. Use IPv4 connectivity as parent interface - ticked. DHCPv6 prefix delegation size - 64. 6rd. comcast. home. ipv6. router. This is an example configuration for connecting to the Comcast 6RD trial tunnels from a typical residential NAT/DHCP home router. NOTE: Comcast has listed an end date of 6/30/2011 for their 6RD trial. The 6RD gateway may not be accessible after that.IPv6 Prefix comcast-prefix, acquired via DHCP PD 2603:3004:273:F960::/59 Valid lifetime 265472, preferred lifetime 265472 # 5) Now find out the IPv6 address of your Cisco 2800 with the command. #sh ipv6 interface fastethernet0/0. FastEthernet0/0 is up, line protocol is up IPv6 is enabled, link-local address is FE80::21B:CFF:FE3C:3FA0The quickest and easiest way to get help from Xfinity is to use the website’s Xfinity Assistant feature. To do so, log on to your Xfinity account and navigate to the Xfinity Assist...Normally you just get both IPv4 and IPv6 addresses. It's possible to run an IPv4 only setup, but you'll need a router that supports disabling IPv6. I'm pretty sure that means buying your own equipment. Disable IPv6 is a common option on routers but I'm betting you can't do it on an XB8. 0.Click "Sign In" if necessary. • Click the "Peer to peer chat" icon. • Click the "New message" (pencil and paper) icon. • Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line. • Type your message in the text area near the bottom ...May 12, 2022 · No longer getting IPv6 address after Xfinity work in my neighborhood. I had a well working setup with IPv4 and IPv6. But there was some big work in my neighborhood today (got email about service interruption and saw several crews working on the street), and now that the work is completed, I now longer get an IPv6 address assigned. Double-check the firewall settings in the modem. At least for my modem, the IPv6 firewall was set to "Typical" by default, which blocks inbound connections. Select "Custom" and disable the firewall (your modem may be different) 0. 0. Cancel. In the office we get the IPv6 address by dhcpv6From this address, we have Internet connectivity, but ...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 …With a /64 PD from Comcast Xfinity, everything worked automatically when I had no VLANs. Once I introduced VLANs, I could not get IPv6 working automatically. My understanding is that each subnet likes to be /64 size for auto configuration, and if your ISP only gives you a PD of /64 that leaves you with just 1 /64 subnet to work with.The Comcast equipment is a Cisco type-BWG model-DPC3939B Business IP Gateway. It's readouts show the IPv4 and IPv6 static delegations. I'm using VyOS as the routing software on my router/firewall (which is plugged in to one of the LAN ports on the BIP Gateway). It's an OSS fork of Vyatta, parallel to Brocade or Ubiquiti.Please advise how to disable IPv6. I’m using the XB6-T modem. When it comes to customer service, Comcast is one of the most reliable providers in the industry. With their 24/7 customer assistance, you can get help with any issue you may have ...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.The network portion uses the higher order bits of the address while the host uses the lower order bits. The division point is called the netmask in IPv4 and the prefix in IPv6. For IPv6: When the NIC is started and IPv6 is enabled w/ SLAAC support, the NIC generates a unique 64 bit address to be used as the host portion of the IPv6 address.Download speed. This number is a measure of how quickly your device gets data from the Internet. It’s expressed in megabits per second — Mbps. Test your Internet upload and download speeds to see how Comcast Business Internet compares to the competition. Get a free quote today for speeds up to 1 Gig.I cannot find the settings on the router using the local web interface, using the Xfinity app, or the Xfinity website. I dont have time to explain why I need to do this as this is not a debate on why I should use IPv6 or how to get around the many issues I have because of it, I just simply would like to know how to disable IPv6 as a Xfi customer.Follow these steps to configure Windows 10 network settings on your computer. Right-click on Start. Select the Network Connections option. Double-click on the network connection you are using. Click Properties (you must be logged in as Administrator, or you will be prompted to log in). Click the Networking tab.For IPv6, no custom configuration is required on the Business IP Gateway since the provisioning of the IPv6 prefix is managed by Comcast. You would need to subscribe to a block of IPV4 static IP addresses to get the IPV6 static IP's. PTR records can be requested by calling into our care teams through 1-800-391-3000, or you can always …It seems fairly common sense, but cable internet providers such as Comcast and Charter do not openly advertise that you can use most any compatible DOCSIS 3.0 gateway and avoid pay...Xfinity Comcast offers a wide range of services, from cable TV and internet to home phone and home security. With so many options, it can be difficult to know where to start when l...Specifically, when Comcast's router sends an ICMPv6 message of type Router Advertisement, in that message it sets the MTU option to 9192. This is wrong because the IPv6 standard requires that value to be supported by segments. Since I'm connected to Comcast via a cable modem therefore it simply cannot handle this value.IPv6 is certainly supported on Comcast/Xfinity on the UDM. I have a score of 19/20 on IPv6 test. Configure as below and then reboot the UDM. You should have a 128/ under 2001: and your LAN should have a /64 under 2601:.Technical Details for Our IPv6 Deployment. We have now started our pilot market deployment of IPv6, which is the first of several phases for our IPv6 deployment. This first phase will support certain types of directly connected CPE, where a computer is connected directly to a cable modem.Forget the 6in4 tunnel. Comcast Xfinity blocks the ability to setup a 6in4 tunnel through a tunnel broker service. Since you are using your own modem, reboot your DD-WRT router after setting up Prefix Delegation to see if it pulls an IPv6 address on the WAN port from Xfinity. You might have to also reboot or power cycle your cable modem.If you’re a Comcast email user and suddenly find yourself unable to access your account or experience any other issues, you’re not alone. Comcast email issues can be frustrating, b...I have replaced my Router/Modem combo with the new XB7, have had techs out to the house, reinstalled windows, replaced all my cabling, replaced my network card, replaced just about everything but my ISP and I am just now seeing all the CONSTANT IPv6 input drops, Forward Drops, FW.WANATTACK drops by the THOUSANDS right at the …@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. Note: If you have an XB7 Wireless Gateway, you’ll only see options for Typical Security and Customer Security after selecting IPv6. Select the firewall setting you want. Click Save Settings. Note: A firewall can be set up on both your computer and your Xfinity Gateway, but more than one firewall can cause interference. Additional information Nov 9, 2011 · Technical Details for Our IPv6 Deployment. We have now started our pilot market deployment of IPv6, which is the first of several phases for our IPv6 deployment. This first phase will support certain types of directly connected CPE, where a computer is connected directly to a cable modem. Note: If you have an XB7 Wireless Gateway, you’ll only see options for Typical Security and Customer Security after selecting IPv6. Select the firewall setting you want. Click Save Settings. Note: A firewall can be set up on both your computer and your Xfinity Gateway, but more than one firewall can cause interference. Additional informationIPv6. Primary DNS: 2001:558:feed::1. Secondary DNS: 2001:558:feed::2. Xfinity is the trade name of Comcast Cable Communications, LLC, a subsidiary of Comcast Corporation, used to market consumer cable television, internet, telephone, and wireless services provided by the company. Xfinity brand was first introduced in 2010; prior to that, all ...Failing to get or losing IPv6 address. I have been using IPv6 on Comcast for several years with only occasional problems, usually following some disruption of cable service that requires reboots of modem and router. Recently, and coincident with some apparent changes in Comcast servers, I am sometimes, not always, able to get an IPv6 …Mar 16, 2024 · Xfinity allows us to do that on-demand using DHCPv6 from the gateway router via a process called prefix delegation. 2. If the interface toward the cable modem is ether1, we can say: /ipv6 dhcp-client. add interface=ether1 request=prefix \. pool-name=ipv6 use-peer-dns=no. The pool name is up to you. Apr 24, 2021 · 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. Nov 6, 2019 · You can find the gateway, static, and CIDR block using these instructions: View your Static IP information online . If you have any further questions or concerns please reach out through private message with your first and last name, business service address and account number or phone number and we would be more than happy to assist. 0. 0 ... Click "Sign In" if necessary. • Click the "Peer to peer chat" icon. • Click the "New message" (pencil and paper) icon. • Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line. • Type your message in the text area near the bottom ...Jan 27, 2020 · The network portion uses the higher order bits of the address while the host uses the lower order bits. The division point is called the netmask in IPv4 and the prefix in IPv6. For IPv6: When the NIC is started and IPv6 is enabled w/ SLAAC support, the NIC generates a unique 64 bit address to be used as the host portion of the IPv6 address. Configure Settings. Follow these steps to configure Windows 10 network settings on your computer. Right-click on Start. Select the Network Connections option. Double-click on the network connection you are using. Click Properties (you must be logged in as Administrator, or you will be prompted to log in). Click the Networking tab. Comcast's support of IPv6. A key aspect of Comcast’s IPv6 program is to make the company’s content available over IPv6, as well as to enable IPv6 connectivity across …Cable companies aren’t terribly popular with their customers, and the size of their monthly bills goes a long way toward explaining why. Cable companies aren’t terribly popular wit...... IPv6 configuration. If I go to Internet > IPv6 Setup, it's getting a proper address/prefix from my provider (XFINITY/Comcast). When I go to ...To change a browser’s homepage to Xfinity’s website, open the browser and navigate to the settings or menu page. From there, replace the browser’s default homepage with Xfinity’s w...Comcast has revealed a plan to fix its customer service problems, including a credit to your account if a technician shows up late. By clicking "TRY IT", I agree to receive newslet...fr. es. IPv6 8 July 2013. Comcast Now Enabling Users To Easily Find Out IPv6 Status In Their Area. By Dan York Director, Internet Technology. UPDATE – 6 April 2020 – In the seven years since this post was first written, Comcast has migrated their entire network over to IPv6.ipv6 address autoconfig default ipv6 enable ipv6 dhcp client pd comcast-prefix random-detect dscp-based no cdp enable. 4) Now issue the command: #sh ipv6 general-prefix. You should get back something like the following: IPv6 Prefix comcast-prefix, acquired via DHCP PD 2603:3004:273:F960::/59 Valid lifetime 265472, preferred lifetime 265472 #This has been working for a long time. As of this morning, my router is getting a valid /128 IPv6 address, and I'm also getting the correct/valid delegation, but attempting to connect to any IPv6 address just times out. IPv4 connectivity is just fine. From everything I'm seeing, this looks like it's a problem on the Xfinity side.I am a Comcast business customers and just had my modem swaped out for one that supports IPv6. I have a block of IPv6 addresses but the tech didn't know how to assign a static IPv6 address. He suggested I contact Comcast customer support. Called Comcast support and was told to assign amy global IPv6 address to the router for IPv6 …Support Internet. Configure Windows 10 Network Settings for Xfinity Internet. This article lists the steps to configure Windows 10 network settings for Xfinity Internet on your …For IPv6, no custom configuration is required on the Business IP Gateway since the provisioning of the IPv6 prefix is managed by Comcast. You would need to subscribe to a block of IPV4 static IP addresses to get the IPV6 static IP's. PTR records can be requested by calling into our care teams through 1-800-391-3000, or you can always reach out ...Feb 3, 2023 · For the most part, modems don't care about IPv4/IPv6. It's the router that needs to support it. I used to have a Zoom 5341J, and IPv6 worked on it. Comcast does use IP to access the modem for checking and updates and configuration. That may be v4 or v6, depending on the model, but is not relevant to the end user. Add a port forward · Isn't connected to your home network. · Is using an IPv6 address. · Has a static IP set in the Gateway Admin Page.It has been this way for months. There has to be something wrong with the ipv6 config or some other settings. The modem updated last night in the middle of the night, so I thought I would give it another test. Same, just lags for 10-15 seconds for my android on wifi before it does anything. Load up any app, then wait a good 10-15 seconds for it ...I'm reaching out for some advice on setting up IPv6 with my Comcast Xfinity router. I've noticed that we're assigned a /56 IPv6 prefix in the Xfinity settings. However, Xfinity seems to restrict us to a /64 prefix for DHCPv6 or SLAAC. Our goal is to utilize our own DHCPv6 server and distribute the full /56 block into multiple /64 subnets.Nov 28, 2016 ... Next you have to configure ipv6 for all your networks. Go to Networks. open LAN (edit) and select the IPv6 interface type. Click save and your ...Choose System Preferences from the Apple menu. Click Network. Choose Wi-Fi or Ethernet (whichever one you're using) in the network connection services list. Click Advanced. Click TCP/IP. Then, click Renew DHCP Lease. Open a browser and connect to the Internet. Get complete instructions on how to release and renew your IP address when needed.Provide IPv6 to your LAN including the clients behind it. For step 1 start with selecting the appropriate IPv6 mode, reconfigure the WAN interface and try to ping an IPv6 address or host from the firewall itself, e.g.: Test if ping over IPv6 to Internet is successful (also possible via Interfaces‣Diagnostics‣Ping ).24 Messages. Saturday, March 6th, 2021 9:37 PM. Closed. How to setup IPv6 without Comcast DHCPv6 prefix delegation. With the troubles I've had with IPv6 with this week's …user_e2b984. you need to have a tech come out and switch the port your line is connected to and add some filters to the other lines. someone else's line has so much noise it is causing issues on your line and does not show up unless the tech tests the port device all the connections plug into. I had this exact same issue and took a month of ...Dec 11, 2021 ... How to Fix IPv4/IPv6 'No Internet Access' Error....#comcast #network.Provide IPv6 to your LAN including the clients behind it. For step 1 start with selecting the appropriate IPv6 mode, reconfigure the WAN interface and try to ping an IPv6 address or host from the firewall itself, e.g.: Test if ping over IPv6 to Internet is successful (also possible via Interfaces‣Diagnostics‣Ping ).You will need to take your cable mode out of bridge/passthrough mode, and your "router" behind the modem has to do DHCPv6-PD and send a "hint". If your "router" doesn't support dhcpv6-pd functionality, you'll need to connect devices directly to the cable modem to have functional ipv6. If it does have dhcpv6-pd functionality and you have an ipv6 ...I have the Setting ( in windows ) set to obtain info autoomatically. on both the IPv4 and IPv6. I tryed cloning the MAC adress of the Netgear in to my router. that does not work. Just wondering if the …
I need to get the Comcast Cisco modem to send the IPv6 address of this local nameserver in its DHCP6 and router advertisements. The Comcast router always sends 2001:558:feed::1 and 2001:558:feed:2. I logged into the modem, checked "Assign DNS Manually", entered the address for my local nameserver, clicked "Save", and it appeared to save it.. Aurora urgent care fond du lac
Test your IPv6 connectivity. Your IPv4 address on the public Internet appears to be 40.77.188.226. Your Internet Service Provider (ISP) appears to be MICROSOFT-CORP-MSN-AS-BLOCK. No IPv6 address detected [more info] You appear to be able to browse the IPv4 Internet only. You will not be able to reach IPv6-only sites.Note: If you have an XB7 Wireless Gateway, you'll only see options for Typical Security and Customer Security after selecting IPv6. Select the firewall ...WiFi security: For encryption, WPA2 and WPA3 are still considered secure at this time. That may change in the future. WPA3 is replacing WPA2, but not all devices can do it currently. WPA3 is recommended. Use WPA3 if your devices can, just to keep on the current security edge. IPV4 and IPV6 are just protocols. I'm reaching out for some advice on setting up IPv6 with my Comcast Xfinity router. I've noticed that we're assigned a /56 IPv6 prefix in the Xfinity settings. However, Xfinity seems to restrict us to a /64 prefix for DHCPv6 or SLAAC. Our goal is to utilize our own DHCPv6 server and distribute the full /56 block into multiple /64 subnets. I am afraid that I must disagree. I set this up - had it working and getting a 10/10 from the COMCAST IPv6 test page and 19/20 from here: IPv6 test - IPv6/4 connectivity and speed test (ipv6-test.com) I would test it every day for more than a week. Then one day I ran the tests again. I got 4/10 from COMCAST page and 13/20 from the other.You can find the gateway, static, and CIDR block using these instructions: View your Static IP information online . If you have any further questions or concerns please reach out through private message with your first and last name, business service address and account number or phone number and we would be more than happy to assist. 0. 0 ...Since you're wanting to disable it for your internal network, it might be an option to do so via the individual operating systems, although I would definitely recommend researching the device and operating system to evaluate the impact it would have if you decide to go that route. 0. 0.Everything else was pretty basic IPv6 setup and closely matched the IPv6 Prefix Delegation docs at the Cisco support site. I hope this helps at least somewhat. In case it matters, I'm located in the Twin Cities in Minnesota, and Comcast has supported IPv6 here for at least a couple years now.IPV6 - Prefix Delegation Size. Hello, I'm setting up IPV6 for my home network and by default, Comcast is assigning a 64-bit prefix delegation size, which allows only 1 subnet. I have multiple subnets at home and I want to add support for IPV6. According to the last post to this thread, it stated that Comcast no longer accepts hint for /60 prefixes.Arris G34 Internet Issue. I recently purchased a G34 for my mother, upon installing and working with Xfinity support to activate I noticed many web pages weren’t working unless they resolved to an IPv6 address. Also ping to an IPv4 address (or hostname that resolves to an IPv4 address) doesn’t work. I checked the Gateway > Connection > WAN ...I have the Setting ( in windows ) set to obtain info autoomatically. on both the IPv4 and IPv6. I tryed cloning the MAC adress of the Netgear in to my router. that does not work. Just wondering if the …Yes, icmp (ping) is low priority, but udp and tcp are dropped as well. The packet loss affects my corporate vpn and voice. But comcast does what is usually does, and they do it well. They sell services to make money. Technical support seems to be a lower priority. 1.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...The quickest and easiest way to get help from Xfinity is to use the website’s Xfinity Assistant feature. To do so, log on to your Xfinity account and navigate to the Xfinity Assist...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...From there, you can choose IPv4 or IPv6. After choosing either, you will see the following options: Maximum Security (High), which will block most applications except web browsing, email, iTunes and VPN. Typical Security (Medium), which allows access to most sites and services, but blocks all peer-to-peer applications.No longer getting IPv6 address after Xfinity work in my neighborhood. I had a well working setup with IPv4 and IPv6. But there was some big work in my neighborhood today (got email about service interruption and saw several crews working on the street), and now that the work is completed, I now longer get an IPv6 address assigned..