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    Allow traffic between VLANs

    Scheduled Pinned Locked Moved Firewalling
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    • chpalmerC
      chpalmer
      last edited by

      Are you actually using VLAN tagging?

      Triggering snowflakes one by one..
      Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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      • K
        kingrazor @chpalmer
        last edited by

        @chpalmer said in Allow traffic between VLANs:

        Are you actually using VLAN tagging?

        Yes

        chpalmerC 1 Reply Last reply Reply Quote 0
        • chpalmerC
          chpalmer @kingrazor
          last edited by

          @kingrazor

          Can devices on your VLANs access the internet and their own gateway address?

          Triggering snowflakes one by one..
          Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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          • K
            kingrazor @chpalmer
            last edited by

            @chpalmer said in Allow traffic between VLANs:

            @kingrazor

            Can devices on your VLANs access the internet and their own gateway address?

            Yes

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            • GrimsonG
              Grimson Banned @kingrazor
              last edited by

              @kingrazor said in Allow traffic between VLANs:

              I know that the VLANs are working because I'm able to connect to the internet from hosts that I assign to that VLAN.

              If they can reach the Internet with a wide open any rule, and if there is no additional blockind rule created by you it's likely not a pfSense issue. Probably a local firewall on the devices preventing access from devices outside their subnet. Capture traffic on both pfSense interfaces and see what exactly happens there.

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              • chpalmerC
                chpalmer
                last edited by

                Just a heads up.. Im in an establishment with a really bright background so please forgive me if I ask something that is obvious above.. :)

                Triggering snowflakes one by one..
                Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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                • chpalmerC
                  chpalmer
                  last edited by

                  What subnets are you working with??

                  Nothing overlapping is there?

                  Triggering snowflakes one by one..
                  Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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                  • K
                    kingrazor @chpalmer
                    last edited by

                    @chpalmer said in Allow traffic between VLANs:

                    What subnets are you working with??

                    Nothing overlapping is there?

                    VLAN 1 is 10.0.0.1
                    VLAN 2 is 10.0.2.1
                    VLAN 3 is 10.0.3.1

                    and so on

                    GrimsonG 1 Reply Last reply Reply Quote 0
                    • GrimsonG
                      Grimson Banned @kingrazor
                      last edited by

                      @kingrazor said in Allow traffic between VLANs:

                      VLAN 1 is 10.0.0.1
                      VLAN 2 is 10.0.2.1
                      VLAN 3 is 10.0.3.1

                      You're missing half the information there. Is it /8 /12 /24 whatever.

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                      • K
                        kingrazor @Grimson
                        last edited by

                        @Grimson said in Allow traffic between VLANs:

                        @kingrazor said in Allow traffic between VLANs:

                        I know that the VLANs are working because I'm able to connect to the internet from hosts that I assign to that VLAN.

                        If they can reach the Internet with a wide open any rule, and if there is no additional blockind rule created by you it's likely not a pfSense issue. Probably a local firewall on the devices preventing access from devices outside their subnet. Capture traffic on both pfSense interfaces and see what exactly happens there.

                        Interesting, I'd assumed Windows firewall would treat pings the same regardless of subnet. I'll try turning off Windows Firewall and see if I get the same behavior.

                        GrimsonG 1 Reply Last reply Reply Quote 0
                        • K
                          kingrazor @Grimson
                          last edited by

                          @Grimson said in Allow traffic between VLANs:

                          @kingrazor said in Allow traffic between VLANs:

                          VLAN 1 is 10.0.0.1
                          VLAN 2 is 10.0.2.1
                          VLAN 3 is 10.0.3.1

                          You're missing half the information there. Is it /8 /12 /24 whatever.

                          VLAN 1 is 10.0.0.1/24
                          VLAN 2 is 10.0.2.1/24
                          VLAN 3 is 10.0.3.1/24

                          and so on

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                          • GrimsonG
                            Grimson Banned @kingrazor
                            last edited by

                            @kingrazor said in Allow traffic between VLANs:

                            Interesting, I'd assumed Windows firewall would treat pings the same regardless of subnet. I'll try turning off Windows Firewall and see if I get the same behavior.

                            No it does not. Next time test with a serious OS.

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                            • K
                              kingrazor @Grimson
                              last edited by

                              @Grimson said in Allow traffic between VLANs:

                              @kingrazor said in Allow traffic between VLANs:

                              Interesting, I'd assumed Windows firewall would treat pings the same regardless of subnet. I'll try turning off Windows Firewall and see if I get the same behavior.

                              No it does not. Next time test with a serious OS.

                              Oh brother. I'm not going to bother installing an OS that none of my clients will ever use.

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                              • chpalmerC
                                chpalmer
                                last edited by chpalmer

                                Windows will treat any out of subnet address as public unless told otherwise..

                                And Im striking that last comment as Im not sure you can make it treat anything out of its own subnet as a private network.. Others will know better than I..

                                Triggering snowflakes one by one..
                                Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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                                • K
                                  kingrazor
                                  last edited by

                                  Yep, Windows firewall was the problem. Apparently even allowing ping on public network connections wasn't enough.

                                  So now on each interface I have an allow any rule at the bottom and block/reject rules above that to restrict traffic across VLANs (except where we want it)

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