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    Pfsense and windows domain

    Scheduled Pinned Locked Moved General pfSense Questions
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    • F Offline
      fladias @stephenw10
      last edited by

      @stephe! We have LAN with windows server machine running and providing DHCP and DNS plugged on the switch, internet from pfsense plugged on the same switch as well client. What happens the time we plug pfsense LAN on the switch the LAN(domain) become inaccessible and the internet connection running normally. I would like the internet and domain work together.![alt text](image urlIMG_20251011_084059_959.jpg )

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      • F Offline
        fladias @SteveITS
        last edited by

        @SteveITS Thanks, I have already done it from pfsense.

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        • S Offline
          SteveITS Rebel Alliance @fladias
          last edited by

          @fladias did you disable DHCP server in pfSense?

          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 reboot, or more depending on packages, and device or disk speed.
          Upvote 👍 helpful posts!

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          • F Offline
            fladias @SteveITS
            last edited by

            @SteveITS I will verify and give you feedback thanks!

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            • stephenw10S Offline
              stephenw10 Netgate Administrator @fladias
              last edited by

              @fladias said in Pfsense and windows domain:

              we plug pfsense LAN on the switch the LAN(domain) become inaccessible

              How are you seeing that appear? How are you testing?

              If you are not using pfSense as a DHCP server or DNS server then nothing should change when it's connected.

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              • F Offline
                fladias @stephenw10
                last edited by

                @stephenw10 from the client computer bottom right network icon notification as well as on shared drive accessibility it becomes disable.

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                • stephenw10S Offline
                  stephenw10 Netgate Administrator
                  last edited by

                  So what's changing on the client? It's default route? It's DNS server?

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                  • F Offline
                    fladias @stephenw10
                    last edited by

                    @stephenw10 that is clear, without activating DHCP in Pfsense do you believe client still gonna have internet access?

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                    • stephenw10S Offline
                      stephenw10 Netgate Administrator
                      last edited by

                      It will if your domain controller is passing pfSense as the default gateway to clients via it's DHCP.

                      OK so you said you were not using pfSense for DHCP but if in fact it's still enabled there then that explains the behaviour you're seeing. Clients will get a dhcp lease and routing dns info from pfSense and lose whatever info the DC is passing them.

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                      • F Offline
                        fladias @stephenw10
                        last edited by

                        @stephenw10 I have noticed IP is different the one from pfsense when plugged, when I unplugged pfsense client use other IP from the domain.

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                        • stephenw10S Offline
                          stephenw10 Netgate Administrator
                          last edited by

                          Yeah you cannot have two DHCP servers. You must choose one and I would use the DC for that. Configure it o use the same subnet as pfSense and pass the pfSense LAN address as a default gateway to clients.

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