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    Best way to separate IOTs from main LAN?

    Scheduled Pinned Locked Moved General pfSense Questions
    24 Posts 4 Posters 2.6k Views
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Is your Outbound NAT still set to the default 'automatic' in Firewall > NAT > Outbound?

      Steve

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      • bthovenB
        bthoven
        last edited by

        here is the outbound
        342d7083-b3db-40dd-b7c0-2fc632ef84d4-image.png

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        • bthovenB
          bthoven
          last edited by bthoven

          I'm not sure the DNS Resolver setting is relevant. Now in Network Interfaces, I can choose LAN and Local Host. When I tried to choose ALL ans save, pfsense seems to be quite busy and I have to wait a very long time before it came back, and the setting reverts to LAN and Local Host again. I tried selecting ALL 3 times, and got the same behavior.

          Outgoing Network Interface: WAN only.

          2c75dc58-4313-4085-ab85-f50483cd061c-image.png

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            Ah, Ok you won't have internet without DNS. You need at least Localhost, LAN and IOT set there for it to listen on.

            By default it runs on all though so that should work. Check the system and resolver logs are setting all for errors.

            Steve

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            • bthovenB
              bthoven
              last edited by bthoven

              Thanks. I add IOT to Network Interface, press save, and it is now running.................same symptom as when I selected ALL........still waiting..............

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              • bthovenB
                bthoven
                last edited by

                I waited for almost 10 mins and it came back without IOT selected in the Network Interface (DNS Resolver); and the Resolver stopped.

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  You have to allow your clients to talk to dns if you want internet to work.. Be it the iot interface of pfsense, the lan interface... Or something external - but no internet is not going to work if you don't have dns. Unless you just going to IP address for everything ;)

                  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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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    If unbound fails to apply that change there should be some error logged either in the system or resolver logs, or both.

                    Do you have pfBlocker enabled with DNS-BL? If not that advanced option could be left over cruft.

                    Steve

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                    • bthovenB
                      bthoven @bthoven
                      last edited by bthoven

                      @bthoven said in Best way to separate IOTs from main LAN?:

                      Thanks. I add IOT to Network Interface, press save, and it is now running.................same symptom as when I selected ALL........still waiting..............

                      Hi,
                      I solved this problem by stopping the DNS Resolver first, then additionally chose IOT interface and save. Then it registered the new setting and the resolver restarted itself.

                      Thanks Steve and John for your help.

                      ps. Strange, now Snort blocked Netgate forum ip 208.123.73.199. I had to remove it from the block list. :)
                      642fd65e-cd2f-4441-a224-8a5938a45a6f-image.png

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                      • NogBadTheBadN
                        NogBadTheBad
                        last edited by

                        Have you just installed Snort, if you have I'd advise not putting it into block mode and baseline what it doesn't like.

                        FYI here are the rules I've disabled:-

                        Screenshot 2019-08-08 at 09.45.17.png

                        Andy

                        1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

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                        • bthovenB
                          bthoven
                          last edited by bthoven

                          I monitored Snort for a week before enabling block mode.

                          Could you explain why you disabled those rules? One by one rule explanation would be great.

                          Thanks

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                          • NogBadTheBadN
                            NogBadTheBad
                            last edited by

                            Most of the ET Policy ones are related to my IOT network, I should really tighten up $home_net now I'm running Snort on the parent interface.

                            The SIP stuff is related to a VOIP phone sat on my network.

                            The rest was just normal day to day traffic.

                            Andy

                            1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

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