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    Rogers pfSense configuration

    Scheduled Pinned Locked Moved IPv6
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    • C
      coolspot
      last edited by

      @JKnott:

      What modem do you have?  Not all are suitable.

      I have the Gigabit modem (Hitron CGNM-3552-ROG) - I rebooted pfSense and now I pick up an IPV6 address:

      However, within pfSense, the WAN_DHCP6 gateway is down?

      WAN_DHCP6 fe80::217:10ff:fe91:55b1 0ms 0ms 100% Offline

      Is there any other configuration that is required to get WAN_DHCP6 gateway to work properly?

      screenshot_26.png
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      • JKnottJ
        JKnott
        last edited by

        Is it actually down?  You can try ipv6.google.com to verify.  I find that Gateway Monitoring to an address that didn't respond caused that situation.  I just turn off monitoring, as you don't really need it, if you have only one route to the Internet.  Turning it off also cuts down on traffic.  That monitoring sends out a lot of pings.

        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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        • C
          coolspot
          last edited by

          @JKnott:

          Is it actually down?  You can try ipv6.google.com to verify.  I find that Gateway Monitoring to an address that didn't respond caused that situation.  I just turn off monitoring, as you don't really need it, if you have only one route to the Internet.  Turning it off also cuts down on traffic.  That monitoring sends out a lot of pings.

          Turns out that you can't ping Roger's gateway - I replaced the monitor IP with Google's IPV6 IP and now it is online.

          But another question - how do clients obtain an IPV6 address. Does the DHCP6 Relay and/or DHCP6 Relay & RA need to be enabled?

          Thanks.

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          • B
            bimmerdriver
            last edited by

            @coolspot:

            But another question - how do clients obtain an IPV6 address. Does the DHCP6 Relay and/or DHCP6 Relay & RA need to be enabled?

            If a prefix has been delegated to your router, you should use the dhcpv6 server, not the relay. When you enable the service, you will set the minimum and maximum range, such as ::1000 and ::2000 or whatever. If you will have a stateful and stateless devices on your network, set the router mode to assisted. (Android phones only support SLAAC.)

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            • C
              coolspot
              last edited by

              @bimmerdriver:

              @coolspot:

              But another question - how do clients obtain an IPV6 address. Does the DHCP6 Relay and/or DHCP6 Relay & RA need to be enabled?

              If a prefix has been delegated to your router, you should use the dhcpv6 server, not the relay. When you enable the service, you will set the minimum and maximum range, such as ::1000 and ::2000 or whatever. If you will have a stateful and stateless devices on your network, set the router mode to assisted. (Android phones only support SLAAC.)

              Thanks, I got that working as well.

              Last question, I have multiple LAN subnets - one regular one and one WiFi LAN … since Rogers is /64 prefix delegation, is it possible to "split" the IPV6 addresses across two LANs or am I SOL until Rogers changes the prefix delegation?

              Thanks.

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              • JKnottJ
                JKnott
                last edited by

                It may be possible to split a prefix, but it will break some things, including SLAAC.

                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
                  last edited by

                  I replaced the monitor IP with Google's IPV6 IP and now it is online.

                  Why not just turn off monitoring?

                  But another question - how do clients obtain an IPV6 address. Does the DHCP6 Relay and/or DHCP6 Relay & RA need to be enabled?

                  Normally, the router uses Router Advertisements to provide the local prefix.  Then the various devices add another 64 bits to the prefix.  Those 64 bits can be derived from the MAC address or be a random number.

                  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
                    last edited by

                    If a prefix has been delegated to your router, you should use the dhcpv6 server, not the relay.

                    No need for DHCPv6 on the local LAN.  Router Advertisements and SLAAC provide the addresses.

                    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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                    • C
                      coolspot
                      last edited by

                      @JKnott:

                      If a prefix has been delegated to your router, you should use the dhcpv6 server, not the relay.

                      No need for DHCPv6 on the local LAN.  Router Advertisements and SLAAC provide the addresses.

                      However, if I run a server on a network, DHCP6 would allow me to set a static address correct - this would make it easier to setup firewall rules?

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                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        Yes. Though it is arguable that a static config on the server is no more work than setting up a static assignment. At least it's centralized in the DHCP server.

                        And I believe there is no way to turn off DHCP6 on an inside interface set to track.

                        "Assisted" is generally what you want on the RA settings since some devices (android) are SLAAC-only.

                        Chattanooga, Tennessee, USA
                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                        • C
                          coolspot
                          last edited by

                          @Derelict:

                          Yes. Though it is arguable that a static config on the server is no more work than setting up a static assignment. At least it's centralized in the DHCP server.

                          And I believe there is no way to turn off DHCP6 on an inside interface set to track.

                          "Assisted" is generally what you want on the RA settings since some devices (android) are SLAAC-only.

                          I'm still getting ramped up on IPv6, but it seems that support for DHCP-PD is still weak in pfSense - without the ability for static mappings to track the WAN PD, the entries will become nullified if the ISP updates the modem address assignment.

                          I guess I got the basics setup - for hosting a server seems like I'll still be on IPv4.

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                          • DerelictD
                            Derelict LAYER 8 Netgate
                            last edited by

                            In my opinion support for DHCP-PD is weak on the ISP side.

                            They're the ones changing what should be static IP addresses.

                            Use tunnelbroker.net. They manage to issue static /48s. And they don't charge $90+/month.

                            Chattanooga, Tennessee, USA
                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                            • MikeV7896M
                              MikeV7896
                              last edited by

                              @coolspot:

                              I'm still getting ramped up on IPv6, but it seems that support for DHCP-PD is still weak in pfSense - without the ability for static mappings to track the WAN PD, the entries will become nullified if the ISP updates the modem address assignment.

                              I guess I got the basics setup - for hosting a server seems like I'll still be on IPv4.

                              Static mappings CAN track the WAN PD. When you create a static DHCPv6 mapping and the interface is set up to track another (i.e. LAN tracking WAN), then the only part of the IPv6 address you're entering is the host portion of the address. I've posted elsewhere that I've set up two hosts on my LAN with ::4001 and ::4002 as the static DHCPv6 addresses. That way if the prefix changes, the DHCPv6 server will adjust and on renewal a valid address will be provided to the host with the new prefix.

                              The area that still falls short is the firewall, which has no way to create a rule for an address with a dynamic prefix. I suppose you could create an alias with the hostname of your server(s)… but I'd prefer not to have to do that. That's just another piece in a puzzle where if one part fails, you get to figure out what isn't working.

                              The S in IOT stands for Security

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                              • JKnottJ
                                JKnott
                                last edited by

                                However, if I run a server on a network, DHCP6 would allow me to set a static address correct - this would make it easier to setup firewall rules?

                                With SLAAC, you can have 2 types of address, MAC based and random number "privacy" addresses.  For a server, you'd configure the firewall and DNS for the MAC based address, as it's static.  You may have to configure the server to have a MAC address.  It's usually available in Linux, but with Windows you have to specifically enable it.

                                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
                                  last edited by

                                  Yes. Though it is arguable that a static config on the server is no more work than setting up a static assignment. At least it's centralized in the DHCP server.

                                  With SLAAC and MAC based addresses, there's no setup at all.  It just works.

                                  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

                                    @JKnott:

                                    Yes. Though it is arguable that a static config on the server is no more work than setting up a static assignment. At least it's centralized in the DHCP server.

                                    With SLAAC and MAC based addresses, there's no setup at all.  It just works.

                                    Except that static DHCP/DHCPv6 also includes hostname resolution in DNS forwarder/resolver, while SLAAC would require a DNS Entry that would need to be changed every time the prefix changes.

                                    The S in IOT stands for Security

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                                    • B
                                      bimmerdriver
                                      last edited by

                                      @virgiliomi:

                                      @JKnott:

                                      Yes. Though it is arguable that a static config on the server is no more work than setting up a static assignment. At least it's centralized in the DHCP server.

                                      With SLAAC and MAC based addresses, there's no setup at all.  It just works.

                                      Except that static DHCP/DHCPv6 also includes hostname resolution in DNS forwarder/resolver, while SLAAC would require a DNS Entry that would need to be changed every time the prefix changes.

                                      Agreed about the hostnames. Also, it's not like it's difficult to enable dhcpv6. Since it's being used for dhcpv4, you may as well also use it for dhcpv6.

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                                      • DerelictD
                                        Derelict LAYER 8 Netgate
                                        last edited by

                                        @JKnott:

                                        Yes. Though it is arguable that a static config on the server is no more work than setting up a static assignment. At least it's centralized in the DHCP server.

                                        With SLAAC and MAC based addresses, there's no setup at all.  It just works.

                                        I know that. But change a NIC and you have to change all of that. Setting a static IP address on the server is probably easier over the long run. Or a push, like I said. It is pretty common practice to set static IP addresses in IPv4 for servers. Not really any need to change that.

                                        Chattanooga, Tennessee, USA
                                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                                        • JKnottJ
                                          JKnott
                                          last edited by

                                          If you're using DHCP, changing a NIC will require updating the server too, as the MAC address, which the server maps the address to, will change.

                                          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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                                          • DerelictD
                                            Derelict LAYER 8 Netgate
                                            last edited by

                                            Not talking about using DHCP.

                                            Chattanooga, Tennessee, USA
                                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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