Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    [Solved] No DHCP on IoT vlan

    Scheduled Pinned Locked Moved Firewalling
    5 Posts 3 Posters 806 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • F
      furom
      last edited by furom

      Hi guys,
      I get no DHCP for my IoT devices. I know I must probably be missing a rule, but what is the question. I have started something in the below picture. I figure, as I block all to pfSense, it must be before that, right?

      Then I found this post talking on allowing DHCP to all... Is that what I need to do, adding something like
      a6ac5819-8ca2-4303-9d98-3c749185e8fa-image.png where pfSense lives?

      and not have the topmost rule in the vlan rules?
      211be47c-afbe-4be0-b1ce-4bce0d5bece4-image.png

      Thanks

      Bob.DigB 1 Reply Last reply Reply Quote 0
      • Bob.DigB
        Bob.Dig LAYER 8 @furom
        last edited by

        @furom DHCP works without rules. What have you done in the DHCP Server is of more interest.

        F 1 Reply Last reply Reply Quote 0
        • F
          furom @Bob.Dig
          last edited by furom

          @bob-dig Thanks,
          well, so I believed also, and it is me, i'm sure...

          In the IoT DHCP server section I have only

          • enabled DHCP
          • set scope to part of the subnet
          • defined DNS to point to vlans first address aka "gateway"

          That's it. I see no request for DHCP in the log at all, in fact nothing from IoT. I forgot to add I'm running in 802.1Q mode if that could have anything to do with this.

          Edit: Verified with an ubuntu install on same vlan, it does not get any IP - to rule out my IoT device malfunctioning...

          Edit2: I believe it is my Proxmox that is misconfigured network-wise, and don't propagates the vlan's I expect it to. If anyone has a clue, I'd really appreciate some help...

          B 1 Reply Last reply Reply Quote 0
          • B
            Banana4438 @furom
            last edited by

            @furom so I just recently had the same issue in some of my vlan. I believe that the issue on my end was that my UniFi switch had not been informed that there existed a new vlan only network so it wasn’t passing that traffic from what I can tell to get an ip from my virtualized pfsense in proxmox.

            That ended up fixing it for me , hope you have good luck with yours.

            F 1 Reply Last reply Reply Quote 0
            • F
              furom @Banana4438
              last edited by

              @Banana4438 said in No DHCP on IoT vlan:

              @furom
              hope you have good luck with yours.

              Thanks! I did actually, (and forgot to mark this as solved). It was indeed a misconfiguration, if I recall correctly it was both my Proxmox networking settings and the Netgate switch that had been set wrong. :)

              1 Reply Last reply Reply Quote 0
              • First post
                Last post
              Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.