Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Enabling IPv6 on Comcast home network

    Scheduled Pinned Locked Moved IPv6
    72 Posts 5 Posters 15.5k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • JKnottJ
      JKnott @johnpoz
      last edited by JKnott

      @johnpoz said in Enabling IPv6 on Comcast home network:

      Are you paying the isp for this device?

      It is supplied by them and is included in the cost of the service. It also includes home phone.

      I haven't seen a plain modem in years, from either the cable or phone companies. As I mentioned, even business customers get one of these gateway devices, where you disable the gateway if all you want is a modem. Through my work, I have set up several companies on one or the other companies.

      BTW, they have replaced the device several times over the years. Most recently, when I got IPTV last year. I went from 2 boxes for Internet & home phone to one and my bandwidth went from 75/10 to 500/20, though as usual with this ISP, it was better than advertised. I have seen over 800 Mb on speedtest. A previous swap, from a Cisco "modem", got me IPv6, more bandwidth and a lower bill.

      PfSense running on Qotom mini PC
      i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
      UniFi AC-Lite access point

      I haven't lost my mind. It's around here...somewhere...

      johnpozJ 1 Reply Last reply Reply Quote 0
      • johnpozJ
        johnpoz LAYER 8 Global Moderator @JKnott
        last edited by johnpoz

        @jknott said in Enabling IPv6 on Comcast home network:

        I haven't seen a plain modem in years

        There are plenty of them for cable..

        Top sellers right now
        Motorola MB8600
        Motorola MB8611 (2.5gbps interface)
        ARRIS SURFboard SB8200
        ARRIS Surfboard S33 (2.5gbps interface)
        Motorola MB7621
        Netgear CM600,CM1000,CM1100,CM1200
        etc. etc..

        And there sure is way more than just 1 that works with comcast/xfinity..

        It is supplied by them and is included in the cost of the service

        Cable companies here - pretty much never replace unless it fails, they sure do not replace often enough to justify paying 10$ which is very common.

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

        JKnottJ 1 Reply Last reply Reply Quote 0
        • JKnottJ
          JKnott @johnpoz
          last edited by JKnott

          @johnpoz said in Enabling IPv6 on Comcast home network:

          I haven't seen a plain modem in years

          There are plenty of them for cable..

          I know you can buy them, but the companies here don't seem to supply them.

          pretty much never replace unless it fails

          I've never had one fail, but I have had several replaced with changes in my service. I got my first cable modem, and it was just a modem, back in the @home days, in the late '90s. It was a Motorola, IIRC.

          BTW, my ISP, Rogers, was one of the companies involved in developing the DOCSIS specs.

          PfSense running on Qotom mini PC
          i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
          UniFi AC-Lite access point

          I haven't lost my mind. It's around here...somewhere...

          johnpozJ 1 Reply Last reply Reply Quote 0
          • johnpozJ
            johnpoz LAYER 8 Global Moderator @JKnott
            last edited by johnpoz

            BTW I think xfinity rental fee is up to like $14 a month, and if have them do their xfinity fi nonsense its like $25 a month.. $300 a YEAR... Buy your own stuff.. You could get pretty fancy $200 2.5gig docsis modem and a couple of unifi AX AP and have that paid for in less then 18 months..

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 24.11 | Lab VMs 2.8, 24.11

            JKnottJ 1 Reply Last reply Reply Quote 0
            • JKnottJ
              JKnott @johnpoz
              last edited by

              @johnpoz

              As I said, I don't have an option. The modem/gateway is included with the service. There is no option for providing your own. I believe the same is true with the phone company. However, some resellers may allow customer owned hardware. As I mentioned, there have been times when I got a new modem and my service increased while the cost went down.

              PfSense running on Qotom mini PC
              i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
              UniFi AC-Lite access point

              I haven't lost my mind. It's around here...somewhere...

              johnpozJ 1 Reply Last reply Reply Quote 0
              • johnpozJ
                johnpoz LAYER 8 Global Moderator @JKnott
                last edited by johnpoz

                That was really meant to the OP and any other viewer of the thread.

                BTW - stuff I am reading is rogers just hides the "rental" fee..

                An intelligent man is sometimes forced to be drunk to spend time with his fools
                If you get confused: Listen to the Music Play
                Please don't Chat/PM me for help, unless mod related
                SG-4860 24.11 | Lab VMs 2.8, 24.11

                JKnottJ 1 Reply Last reply Reply Quote 0
                • JKnottJ
                  JKnott @johnpoz
                  last edited by

                  @johnpoz

                  They also hid the fee when they fished coax and 2 pieces of CAT5 the length of my condo, running it inside a wall, along side an air duct, over my bedroom closet & bathroom and over my laundry room to reach my "office" at the other end of my unit. The cables were only visible where they crossed the laundry room ceiling and came through the wall into my office closet. They even patched the drywall where they had to cut through it. It took 2 guys 3 hours to do that. They've also provided IPv6 natively for over 5 years and via 6rd & 6to4 tunnels for a couple of years prior to that. They generally provide excellent service, so I'm not worried about the rental being included in my bill.

                  PfSense running on Qotom mini PC
                  i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                  UniFi AC-Lite access point

                  I haven't lost my mind. It's around here...somewhere...

                  L 1 Reply Last reply Reply Quote 0
                  • L
                    lenhuppe @JKnott
                    last edited by

                    @jknott

                    This was an informative thread. Now I know why I have been unable to get IPv6 going. I will take into consideration what I learned here and post what I did to get it going.

                    S 1 Reply Last reply Reply Quote 0
                    • S
                      SteveITS Galactic Empire @lenhuppe
                      last edited by

                      @lenhuppe re: "HE Tunnel": Netgate has instructions to set up a tunnel broker. Had to do it once...worked great except that I had to restart the pfSense after setting it up to get it fully working (DNS lookups to the LAN IPv6 were failing, and I could not ping the router LAN IPv6, but IPv6 was otherwise usable). Hurricane Electric provides this for free.

                      Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                      When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
                      Upvote 👍 helpful posts!

                      1 Reply Last reply Reply Quote 0
                      • JKnottJ
                        JKnott @lenhuppe
                        last edited by

                        @lenhuppe said in Enabling IPv6 on Comcast home network:

                        I have accessed the cable modem and found the "Delegated prefix" number. Its an Xfinity CGM4140COM if that helps at all. I just need to know where to enter the prefix.

                        That number sounded familiar, so I checked mine. It's a Technicolor CGM4140COM.

                        Does yours look anything like this?

                        96dfe584-a5e6-414c-9f2c-34bde8804116-image.png

                        PfSense running on Qotom mini PC
                        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                        UniFi AC-Lite access point

                        I haven't lost my mind. It's around here...somewhere...

                        L 1 Reply Last reply Reply Quote 0
                        • L
                          lenhuppe @JKnott
                          last edited by

                          @jknott

                          alt text

                          alt text

                          Sorry for the delay in posting ... been crazy busy

                          JKnottJ 1 Reply Last reply Reply Quote 0
                          • JKnottJ
                            JKnott @lenhuppe
                            last edited by

                            @lenhuppe

                            I need access to see those. Why not just paste the image as I did. Or if you need to use a file, just attach it here.

                            PfSense running on Qotom mini PC
                            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                            UniFi AC-Lite access point

                            I haven't lost my mind. It's around here...somewhere...

                            L 1 Reply Last reply Reply Quote 0
                            • L
                              lenhuppe @JKnott
                              last edited by

                              @jknott Screen Shot 2021-06-18 at 7.08.26 AM.png Screen Shot 2021-06-18 at 7.08.50 AM.png

                              JKnottJ 1 Reply Last reply Reply Quote 0
                              • JKnottJ
                                JKnott @lenhuppe
                                last edited by JKnott

                                @lenhuppe

                                You showed a different page than I did, but it appears it's the same device. It's easy to put into bridge mode.

                                BTW, I believe Rogers uses the same IPTV system as Comcast, so no surprise it's the same modem.

                                PfSense running on Qotom mini PC
                                i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                                UniFi AC-Lite access point

                                I haven't lost my mind. It's around here...somewhere...

                                L 1 Reply Last reply Reply Quote 0
                                • L
                                  lenhuppe @JKnott
                                  last edited by

                                  @jknott

                                  I need to get a land line so that we can still have POTS and an access point that works well in a home setting. Then I can switch to bridge mode.

                                  johnpozJ JKnottJ 2 Replies Last reply Reply Quote 0
                                  • johnpozJ
                                    johnpoz LAYER 8 Global Moderator @lenhuppe
                                    last edited by

                                    @lenhuppe said in Enabling IPv6 on Comcast home network:

                                    I need to get a land line

                                    Huh? You have a phone number you don't want to loose? Just run on cell, like everyone else on the planet under the age of 80 ;)

                                    An intelligent man is sometimes forced to be drunk to spend time with his fools
                                    If you get confused: Listen to the Music Play
                                    Please don't Chat/PM me for help, unless mod related
                                    SG-4860 24.11 | Lab VMs 2.8, 24.11

                                    JKnottJ 1 Reply Last reply Reply Quote 0
                                    • JKnottJ
                                      JKnott @lenhuppe
                                      last edited by

                                      @lenhuppe

                                      I also have home phone through that box and bridge mode doesn't affect it. It still works fine.

                                      PfSense running on Qotom mini PC
                                      i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                                      UniFi AC-Lite access point

                                      I haven't lost my mind. It's around here...somewhere...

                                      L 1 Reply Last reply Reply Quote 0
                                      • JKnottJ
                                        JKnott @johnpoz
                                        last edited by

                                        @johnpoz

                                        Putting that box into bridge mode doesn't have any effect on the phone line. I have a bundled Internet/TV/phone deal and removing the phone would break the bundle and cost me more.

                                        PfSense running on Qotom mini PC
                                        i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                                        UniFi AC-Lite access point

                                        I haven't lost my mind. It's around here...somewhere...

                                        L 1 Reply Last reply Reply Quote 0
                                        • L
                                          lenhuppe @JKnott
                                          last edited by

                                          This post is deleted!
                                          1 Reply Last reply Reply Quote 0
                                          • L
                                            lenhuppe @JKnott
                                            last edited by

                                            @jknott said in Enabling IPv6 on Comcast home network:

                                            @johnpoz

                                            Putting that box into bridge mode doesn't have any effect on the phone line. I have a bundled Internet/TV/phone deal and removing the phone would break the bundle and cost me more.

                                            That is good to know ... my dad is 89 and he uses his POTS line daily.

                                            johnpozJ 1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.