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    Enabling IPv6 on Comcast home network

    Scheduled Pinned Locked Moved IPv6
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    • 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!

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      • 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...

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        • 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...

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            • 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

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              • 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...

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                • 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

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                    • 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...

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                      • 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...

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                        • L
                          lenhuppe @JKnott
                          last edited by

                          This post is deleted!
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                          • 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
                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator @lenhuppe
                              last edited by johnpoz

                              @lenhuppe said in Enabling IPv6 on Comcast home network:

                              my dad is 89

                              Well that explains the pots line ;) heheheh

                              We didn't want to loose the number - not sure why pretty much only get "extended warranty, scam sort of calls" but do like having a house number. So we got little box that plug into the house phone line and not all the normal house phones work over cell.

                              Just another option if you don't want to bundle phone with your internet.

                              Saved money that way vs paying the like 50$ a month it was for pots line. Has worked out well - and yeah wife uses house line every day..

                              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 said in Enabling IPv6 on Comcast home network:

                                Well that explains the pots line ;) heheheh

                                That's not the only reason. I long had poor cell coverage in my home. So, until I could use WiFi calling, I really needed a POTS line. That said, however, cell coverage seems to be improving in the past few years.

                                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

                                  @jknott said in Enabling IPv6 on Comcast home network:

                                  I really needed a POTS line

                                  Or you could of just done voip. Yeah pots is very reliable - but cost is over priced..

                                  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

                                    This "POTS" is VoIP. I haven't had a twisted pair phone line since around 2008. However, I still just plug a plain telephone into it. In fact, I have 4 phone jacks here. I connect them to the phone outlet on the cable box.

                                    As I mentioned above this box from Rogers includes both Internet and "POTS" phone and dropping the phone service means breaking the bundle, which would result in a price increase. So, I keep it and the phone number I've had for almost 28 years. On the other hand, I've only had my cell phone number for 26.5 years. 😉

                                    BTW, I've worked with an 8 line POTS box from my ISP at a business customer. It was also VoIP over the cable network.

                                    These days, even the phone company is getting out of the twisted pair back to the CO model. If you still have a twisted pair coming in, it doesn't go any further that a box somewhere in the vicinity, where it converts to fibre.

                                    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...

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                                    • MikeV7896M
                                      MikeV7896
                                      last edited by

                                      Here in the Eastern/Northeastern US, Verizon is actually retiring its copper infrastructure at many of its COs in a number of states, going all fiber. Not all COs have this privilege, unfortunately. But many do.

                                      To be on-topic... in gateway mode, Comcast's rented gateways will provide a /64 to the gateway's LAN, so no prefix delegation to pfSense, IIRC. In bridge mode, or with a proper cable modem, a residential account should be able to get a /60 (16 /64's), a business account should be able to get a /56 (256 /64's), both via DHCPv6-PD. At least that's what they offered when I last had Comcast internet (switched back to Verizon about 18 months ago when they finally got gigabit fiber to my community instead of 30/5 Mbps VDSL).

                                      It should also be noted that some of the early DOCSIS 3.1 modems (like the SB8200 and MB8600) actually offered multiple network ports that could be used with link aggregation to get speed faster than 1 Gbps. Buy a modem, buy an access point (or a router that can be configured as an access point) to put behind pfSense for WiFi, and stop paying Comcast for their gateway.

                                      The S in IOT stands for Security

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                                      • JKnottJ
                                        JKnott @MikeV7896
                                        last edited by

                                        @virgiliomi said in Enabling IPv6 on Comcast home network:

                                        To be on-topic... in gateway mode, Comcast's rented gateways will provide a /64 to the gateway's LAN, so no prefix delegation to pfSense, IIRC.

                                        I have the same device on Rogers and I have it in bridge mode. I get a /56 prefix.

                                        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...

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                                        • L
                                          lenhuppe @JKnott
                                          last edited by lenhuppe

                                          Hi all - this is OP

                                          JKnott was right that I needed to put the cable modem into bridge mode. Also johnpoz was right that doing so has no effect on the POTS line. I did not have to configure the Netgate in any way. The default settings just worked.

                                          I ended up deploying a Zyxel NWA210AX and it was a straight forward process. I would say that the Zyxel is a good match to the Netgate. I can use Firefox to manage both of them locally and that is how I like it.

                                          I ran out of ports on the Netgate so I will need to deploy an additional switch. I should deploy a second access point so I may just get a poe switch. The only thing I am unsure of is if I want to get a managed switch so that I can learn how to allocate my network resources better.

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                                          • JKnottJ
                                            JKnott @lenhuppe
                                            last edited by

                                            @lenhuppe said in Enabling IPv6 on Comcast home network:

                                            JKnott was right that I needed to put the cable modem into bridge mode. Also johnpoz was right that doing so has no effect on the POTS line.

                                            Actually, I said both.

                                            A managed switch is a good idea if you want to bring out multiple LAN interfaces. Just use VLANs to the switch and configure the ports as needed.

                                            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...

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