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Bridge LAN 2 nic, non comunicano

Scheduled Pinned Locked Moved L2/Switching/VLANs
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  • A
    Antonio1971
    last edited by Antonio1971 May 3, 2025, 8:20 PM May 3, 2025, 8:18 PM

    Buonasera, sono nuovo di pfsense avrei bisogno di un aiuto, ho un PC con pfsense 2.7.2, questo PC è un i5 6 generazione con 8Gb RAM, ha una gbe implementata (WAN) e 2 gbe aggiuntive su PCI-E (LAN1 e LAN2) entrambe in bridge, verso e da internet tutto ok ma non so come fare per far comunicare un PC su LAN1 con un PC su LAN2, DHCP abilitato e funzionante su BRIDGE-LAN.

    Spero che sia risolvibile ma per ora grazie per le future risposte.

    Good evening, I'm new to pfsense and I need some help, I have a PC with pfsense 2.7. 2, this PC is a 6th generation i5 with 8GB RAM, it has a gbe implemented (WAN) and 2 additional gbe on PCI-E (LAN1 and LAN2) both in bridge, to and from the internet everything is ok but I don't know how to make a PC on LAN1 communicate with a PC on LAN2, DHCP enabled and working on BRIDGE-LAN.

    I hope it can be solved but for now thanks for future answers.

    P 1 Reply Last reply May 4, 2025, 6:58 AM Reply Quote 0
    • P
      patient0 @Antonio1971
      last edited by May 4, 2025, 6:58 AM

      @Antonio1971 said in Bridge LAN 2 nic, non comunicano:

      2 additional gbe on PCI-E (LAN1 and LAN2) both in bridge, to and from the internet everything is ok but I don't know how to make a PC on LAN1 communicate with a PC on LAN2, DHCP enabled and working on BRIDGE-LAN.

      You have ports LAN1 and LAN2 added to bridge BRIDGE-LAN? I assume you have the IP and DHCP server configured on the BRIDGE-LAN interface and not configured anything on LAN1 and LAN2?

      Have you created a firewall rule for the BRIDGE-LAN interface? A default firewall rule is only created for the standard LAN interface you chose when installing it.

      Can you show (screenshots) of the bridge, the interface configuration and the firewall rules for the bridge?

      1 Reply Last reply Reply Quote 0
      • A
        Antonio1971
        last edited by May 14, 2025, 6:06 PM

        477c39ee-3873-412a-b58c-138a7db7b90c-immagine.png

        dc815dc7-7e66-4dd1-854a-d10fe5efc219-immagine.png

        99c44c2e-9ab0-42d6-8476-cdb975e1025a-immagine.png

        3c92ae67-9c80-4361-898c-ac2d0a935eba-immagine.png

        Hi patient0, sorry if I'm only answering you now but I've been busy with work, I'm attaching some screen shots and I haven't configured anything in the bridge.

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        • A
          Antonio1971
          last edited by May 14, 2025, 9:23 PM

          527eae22-8ca8-4cfc-a5d8-ccf57b46de4f-Schema a blocchi.jpg

          The problem is this

          J 1 Reply Last reply May 14, 2025, 9:28 PM Reply Quote 0
          • J
            johnpoz LAYER 8 Global Moderator @Antonio1971
            last edited by May 14, 2025, 9:28 PM

            @Antonio1971 you say bridge or switch in your drawing.

            If your using a switch, then pc1 talking to pc2 that are on the same network - the traffic never goes to pfsense.

            Most likely issue if your on the same network via a switch is you have host firewalls on pc1 and 2 that don't allow for your ping.

            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

            A 1 Reply Last reply May 18, 2025, 1:59 PM Reply Quote 0
            • A
              Antonio1971 @johnpoz
              last edited by Antonio1971 May 18, 2025, 2:12 PM May 18, 2025, 1:59 PM

              Ciao @johnpoz e grazie per la risposta, ho corretto lo schema, non ci sono switch, solo interfacce ethernet configurate in bridge, che vorrei far funzionare come switch, ma non ci sono riuscito, infatti i 2 PC, uno su LAN01(ETH1) e l'altro su LAN02(ETH2) non comunicano tra loro, e ho bisogno di sapere come fare per farli comunicare, se hai bisogno di altre informazioni non esitare a chiedere, grazie ancora.

              Hi @johnpoz and thanks for replying, I corrected the diagram, there are no switches, only ethernet interfaces configured in bridge, which I would like to make work as a switch, but I couldn't manage to do it, in fact the 2 PCs, one on LAN01(ETH1) and the other on LAN02(ETH2) do not communicate with each other, and I need to know how to do make them do it, if you need any more informations don't hesitate to ask me, thanks again.

              Schema a blocchi.jpg

              J 1 Reply Last reply May 18, 2025, 3:39 PM Reply Quote 0
              • J
                johnpoz LAYER 8 Global Moderator @Antonio1971
                last edited by johnpoz May 18, 2025, 3:44 PM May 18, 2025, 3:39 PM

                @Antonio1971 if you setup a bridge - then your firewall rules would have to allow the traffic over your bridge..

                While bridging can "some what" simulate the actions of a switch - it is not a switch.. A 20$ gig switch would solve your issue ;) shoot if your only after 3 connections a 10$ 5 port gig switch solve your problem

                The time you have spent on this clearly exceeds the cost of a switch - I can tell you for sure if I charged for my time in answering you could of gotten multiple smart switches, and I have spent only a couple of minutes - hehehe

                A bridge does have specific uses cases.. Trying to turn 2 discrete interfaces into a switch is not one of them. The only time I would even think of doing it would be if production was down and it needed to be up NOW.. And the switch won't be here til tmrw..

                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

                1 Reply Last reply Reply Quote 0
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