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

    VLANs blocked by Firewall

    Scheduled Pinned Locked Moved L2/Switching/VLANs
    36 Posts 6 Posters 3.8k 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.
    • kiokomanK
      kiokoman LAYER 8 @r801248
      last edited by

      @r801248
      169.254.x.x it's a link-local address, it's an IP for devices that are unable to obtain a DHCP address from the server
      you see the traffic on OPT2 aka igb3 something is wrong on your switch or on your pfSense configuration. we need screenshots of what you have done

      ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
      Please do not use chat/PM to ask for help
      we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
      Don't forget to Upvote with the 👍 button for any post you find to be helpful.

      R 1 Reply Last reply Reply Quote 0
      • R
        r801248 @kiokoman
        last edited by r801248

        @kiokoman
        Thanks for answering. On the switch, IP address is set up as static and the VLAN as follows -
        switch 1.png
        switch 2.png
        switch 3.png
        All other settings are set to default values.

        On the pfSense box -
        Interfaces
        pf 1.png
        Firewall rules (Similar for OPT3)
        pf rules.png
        With Private_IPv4 as,
        privipv4.png
        And DHCP (Similar setup for OPT3)
        dhcp.png

        DNS Resolver is used by ALL interfaces, and Outbound NAT as Manual (Tried Hybrid and Auto, same results)

        Thanks,

        1 Reply Last reply Reply Quote 0
        • JKnottJ
          JKnott @r801248
          last edited by

          @r801248 said in VLANs blocked by Firewall:

          it cannot pick up the DHCP address from the router

          Did you enable DHCP servers on each VLAN?

          PfSense running on Qotom mini PC
          i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
          UniFi AC-Lite access point

          I haven't lost my mind. It's around here...somewhere...

          R 1 Reply Last reply Reply Quote 0
          • R
            r801248 @JKnott
            last edited by

            @jknott said in VLANs blocked by Firewall:

            Did you enable DHCP servers on each VLAN?

            Correct.

            JKnottJ 1 Reply Last reply Reply Quote 0
            • JKnottJ
              JKnott @r801248
              last edited by

              @r801248

              Well, you'll have to do what I often recommend. Start simple and get things working, before you do anything else. Then you can see where the failure occurs. As it is, a firewall will not block a VLAN as VLANs are layer 2 and firewalls work at layer 3. The firewall rules are applied to each LAN or VLAN as required. Just get the basic networks going first and then start adding the rules.

              PfSense running on Qotom mini PC
              i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
              UniFi AC-Lite access point

              I haven't lost my mind. It's around here...somewhere...

              kiokomanK 1 Reply Last reply Reply Quote 0
              • kiokomanK
                kiokoman LAYER 8 @JKnott
                last edited by

                @r801248
                opt3 is vlan10, i don't see a screenshot for firewall rules and for the dhcp of that interface

                ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                Please do not use chat/PM to ask for help
                we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                R 1 Reply Last reply Reply Quote 0
                • R
                  r801248 @kiokoman
                  last edited by r801248

                  @kiokoman

                  Sorry, here you go. I only set up the switch static address in OPT2, not in the VLAN.
                  opt3 rules.png
                  opt3 dhcp.png

                  kiokomanK 1 Reply Last reply Reply Quote 0
                  • kiokomanK
                    kiokoman LAYER 8 @r801248
                    last edited by

                    @r801248
                    ok
                    "opt2 net * opt2 net" and "opt3 net * opt3 net", not a big deal but they are wrong rules, devices on the same subnet talk to each other without the help of pfsense. pfsense does not see traffic when the client talk to each other on the same subnet

                    i don't see anything else wrong on pfsense, i don't know how the netgear should be configured.
                    what i understand is that the vlan tag is not working right on g1/g2/g8
                    is there an option like vlan port based vs vlan 802.1q or Dot1q on the switch? it should be 802.1q or Dot1q. is the switch configured as layer 2 ? (ip routing should be disabled on the switch)
                    maybe you can use packet capture on the parent interface to see if traffic is passing with tag and if a dhcp DORA is passing

                    ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                    Please do not use chat/PM to ask for help
                    we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                    Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                    R 1 Reply Last reply Reply Quote 0
                    • R
                      r801248 @kiokoman
                      last edited by r801248

                      @kiokoman IP Routing is disabled on the switch. These are the SWITCHING --> VLAN options available.

                      switch-vlan.png

                      And this is the packet capture on the parent interface (OPT2), where 10.70.0.200 is the static IP of the switch.

                      03235d10-1c5f-485f-b9f0-15d0103af000-image.png

                      kiokomanK C 2 Replies Last reply Reply Quote 0
                      • kiokomanK
                        kiokoman LAYER 8 @r801248
                        last edited by

                        @r801248
                        filter for port 67 / 68 and do a release/renew ( or remove and replug the cable) on whatever you have on g1/g2 , i don't see dhcp stuff on that packet capture
                        there should be something like this
                        d7e7a638-cc50-4f2b-8735-417300ea34ae-image.png
                        where ID 30 is my vlan 30

                        ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                        Please do not use chat/PM to ask for help
                        we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                        Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                        R 1 Reply Last reply Reply Quote 0
                        • R
                          r801248 @kiokoman
                          last edited by

                          @kiokoman

                          So, in the Packet Capture screen, you want me to select OPT2 as the interface? I'm assuming Host Address is the Switch's ...

                          kiokomanK 1 Reply Last reply Reply Quote 0
                          • kiokomanK
                            kiokoman LAYER 8 @r801248
                            last edited by kiokoman

                            @r801248
                            use opt3, i don't know if youcan do that with packet capture from pfsense, i use wireshark
                            did you try to reboot pfsense and the switch?

                            ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                            Please do not use chat/PM to ask for help
                            we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                            Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                            R 1 Reply Last reply Reply Quote 0
                            • R
                              r801248 @kiokoman
                              last edited by

                              @kiokoman

                              Both rebooted.

                              1 Reply Last reply Reply Quote 0
                              • C
                                cburbs @r801248
                                last edited by cburbs

                                @r801248 What is your Port PVID Config look like? ooops that was posted earlier.

                                What does this look like?

                                cf1d6151-3600-4ee3-bedd-abec4cea41ce-image.png

                                That config looks correct even looking at this ...

                                https://kb.netgear.com/11673/How-do-I-setup-a-VLAN-trunk-link-between-two-NETGEAR-switches

                                Also on the switch Select Switching > VLAN > Advanced > VLAN Status. what does that look like?

                                R 1 Reply Last reply Reply Quote 0
                                • R
                                  r801248 @cburbs
                                  last edited by

                                  @cburbs Hello,

                                  This is what they look like...
                                  vlans.png
                                  vlans status.png

                                  C 1 Reply Last reply Reply Quote 0
                                  • C
                                    cburbs @r801248
                                    last edited by cburbs

                                    @r801248

                                    And if you plug your laptop into ports 3-7 you mentioned you do get a dhcp from VLAN10 (10.70.10.0/24) ? Can you also get out to the internet on those ports?

                                    Have you tried to add say Port 5 to vlan10 untagged and plug into that to see what happens?

                                    Maybe delete that Vlan 10 from the switch and start over with it?

                                    R 1 Reply Last reply Reply Quote 0
                                    • R
                                      r801248 @cburbs
                                      last edited by

                                      @cburbs
                                      When I plug the laptop into g3-g7 I get a DHCP from the parent interface (10.70.0.0/24) - Yes, I get out to the internet.
                                      Adding any other port (untagged) makes it behave like g1-g2.

                                      kiokomanK 1 Reply Last reply Reply Quote 0
                                      • kiokomanK
                                        kiokoman LAYER 8 @r801248
                                        last edited by

                                        @r801248
                                        did you check if there is a firmware update for that netgear?

                                        ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                                        Please do not use chat/PM to ask for help
                                        we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                                        Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                                        R 1 Reply Last reply Reply Quote 0
                                        • R
                                          r801248 @kiokoman
                                          last edited by

                                          @kiokoman
                                          There is an upgrade. I guess I'll go that route.
                                          Thanks,

                                          R 1 Reply Last reply Reply Quote 0
                                          • R
                                            r801248 @r801248
                                            last edited by

                                            @r801248
                                            Upgraded. Same results. Frustrating.

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