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    PfSense no DHCP on VLANs for UniFi WiFi controller

    Scheduled Pinned Locked Moved General pfSense Questions
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    • H
      Happydog
      last edited by

      It's something... When I tag a port on the downstream switch with that VLAN (11) and connect a PC, it doesn't get an address. (169. etc.) There's not much to screw up in the controller WRT setting up networks.

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      • R
        rcoleman-netgate Netgate @Happydog
        last edited by

        @Happydog You can't tag a port and have a system see the network -- if you are plugging into a switch port you need that VLAN untagged.

        Ryan
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        • H
          Happydog
          last edited by

          right. In any case, made it a simple test setup. Just a switch and an AP and a PC on the LAN1 port. Looks like setups I have on 1100s except the WAN interface is separate (mvneta0) on the 2100 and they work fine. On the 6100s The VLANs are just assigned to a physical port. Setting a port profile to a VLAN in Unifi gives that VLAN IP address to the connected device. Can't see much else to screw it up.

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            So how exactly are you testing?

            I assume untagged clients work on the LAN directly?

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            • H
              Happydog
              last edited by

              Testing on a WiFi network (shows the client connected but no IP address) and a PC connected to a port with a VLAN profile. Same thing. Has to be something simple. The LAN works properly on both.

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              • R
                rcoleman-netgate Netgate @Happydog
                last edited by

                @Happydog It doesn't appear to be a pfSense issue.

                Ryan
                Repeat, after me: MESH IS THE DEVIL! MESH IS THE DEVIL!
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                • S
                  SteveITS Galactic Empire @Happydog
                  last edited by

                  @Happydog is there a UniFi router in their config? I’ve seen it where the network there is set to use a UniFi router which wasn’t connected yet as the old router was still in place.

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                  • H
                    Happydog
                    last edited by

                    No. Netgate 2100, UniFi PoE8 switch, UniFi AP and a PC (used to access the 2100; I bundle one with each Netgate). The problem must be somewhere in the Netgate setup. But there isn't much there in this basic config. DHCP Server is OK.
                    Screenshot 2023-08-02 123210.png Screenshot 2023-08-02 203338.png

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                    • H
                      Happydog
                      last edited by

                      Screenshot 2023-08-02 203930.png

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                      • R
                        rcoleman-netgate Netgate @Happydog
                        last edited by

                        @Happydog Again - I don't see anything wrong with your 2100's configuration. It has to be on the Unifi.

                        Ryan
                        Repeat, after me: MESH IS THE DEVIL! MESH IS THE DEVIL!
                        Requesting firmware for your Netgate device? https://go.netgate.com
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                        • H
                          Happydog
                          last edited by

                          Feel the same. Pretty simple setup and I've done a few. What are the settings in Pfsense to configure one of the LAN ports as a particular VLAN only? Just so I get it right.

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                          • S
                            SteveITS Galactic Empire @Happydog
                            last edited by

                            @Happydog to isolate a port: https://docs.netgate.com/pfsense/en/latest/solutions/netgate-2100/configuring-the-switch-ports.html

                            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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                            • bingo600B
                              bingo600
                              last edited by bingo600

                              Just a thought ....

                              Did you try to disable DHCP snooping on the unifi.
                              I can't really decide if the below is for a switch or if it's also in the AP.
                              Maybe try it .....

                              From:
                              https://evanmccann.net/blog/2021/11/unifi-advanced-wi-fi-settings

                              5323c1c8-f7d2-4047-bf37-ae787ed65c4c-image.png

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                              • H
                                Happydog
                                last edited by

                                Testing by connecting to a WiFi network on a VLAN network. That shows the client connecting but no IP address. Also connected a PC to a tagged port. Again no IP address.

                                stephenw10S johnpozJ R 3 Replies Last reply Reply Quote 0
                                • H
                                  Happydog
                                  last edited by

                                  Set up a couple VLANs on another system. Same thing. This is such basic stuff that there must be some easy solution. Disabled DHCP snooping and one wifi network came back to life. Another didn't. Same settings everywhere. And on a different system (1100). Need to go over this with a UniFi expert. I doubt this is a Pfsense or Netgate issue because all the other VALNs and associated networks are fine.

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                                  • N
                                    nimrod
                                    last edited by nimrod

                                    Go through this manual again

                                    https://www.youtube.com/watch?v=WMyz7SVlrgc

                                    I know this is basic stuff we are talking about here, but sometimes things get overlooked. It happened to me many times.

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                                    • stephenw10S
                                      stephenw10 Netgate Administrator @Happydog
                                      last edited by

                                      @Happydog said in PfSense no DHCP on VLANs for UniFi WiFi controller:

                                      Also connected a PC to a tagged port. Again no IP address.

                                      This could be read several ways. To test with a PC directly it has to be on an untagged port that's a member of the VLAN. Presumably on the unifi switch.

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                                      • johnpozJ
                                        johnpoz LAYER 8 Global Moderator @Happydog
                                        last edited by

                                        @Happydog said in PfSense no DHCP on VLANs for UniFi WiFi controller:

                                        Also connected a PC to a tagged port. Again no IP address.

                                        As @stephenw10 stated.. If your just going to connect a pc to a tagged port - the PC would have to be set to send and understand tags that it gets. this can be done in the driver in windows, and linux can be set to understand the tag as well.

                                        But almost always these ports should be in the vlan untagged, with the pvid set to the vlan ID.

                                        Single devices are normally in 1 vlan, so should be untagged. The only time you need to have tags is when your going to carry more than 1 vlan over the same wire.

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                                        • R
                                          rcoleman-netgate Netgate @Happydog
                                          last edited by

                                          @Happydog I'm thinking you haven't tagged the WiFi VLAN on the uplink port to the pfSense yet.

                                          Ryan
                                          Repeat, after me: MESH IS THE DEVIL! MESH IS THE DEVIL!
                                          Requesting firmware for your Netgate device? https://go.netgate.com
                                          Switching: Mikrotik, Netgear, Extreme
                                          Wireless: Aruba, Ubiquiti

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                                          • pfrickrollP
                                            pfrickroll @rcoleman-netgate
                                            last edited by

                                            @Happydog I'm thinking you haven't tagged the WiFi VLAN on the uplink port to the pfSense yet.

                                            I second that.

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