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    Does Packet Capture show VLANs

    General pfSense Questions
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    • JKnott
      JKnott last edited by

      I've been trying something with VLANs and want to see if tagged frames are appearing on the LAN. Packet Capture doesn't seem to show them, but Wireshark does. Is this a bug in Packet Capture or a "feature".

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      • Pippin
        Pippin last edited by Pippin

        Maybe something to do with promiscuous mode.

        In Wireshark one can switch on/off promiscuous mode,
        Edit > Preferences > Capture

        https://en.wikipedia.org/wiki/Promiscuous_mode

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

          @Pippin

          Promiscuous mode is for MAC addresses, not VLAN ID. For example, I commonly run Wireshark to monitor traffic. It has to be in promiscuous mode to capture packtets that are not from or for the computer I'm running Wireshark on. That capture will show the VLAN frames. The question is does Packet Capture look at all the LAN traffic? Or just the non-VLAN?

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          • H
            heper last edited by

            capture on parent interfaces show vlan frames if level of detail is set high enough

            JKnott 1 Reply Last reply Reply Quote 1
            • JKnott
              JKnott @heper last edited by

              @heper

              That did it. Tnx.

              1 Reply Last reply Reply Quote 0

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