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    Hotel wired jack question

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    • J
      jsaad
      last edited by

      We're using Pfsense in a hotel, most users use the wifi. We also have wired jacks in the rooms.

      The other day we ran into a problem where the network went down. No service. Once we removed a switch from the network it all came up. The switch isolated from the room connections tested fine. It's a simple dumb switch.

      We're thinking someone attached, innocently, a computer with a hard coded IP or a printer with a hard coded ip, same as the pfsense default gateway. I've seen this before in office environments.

      what sort of measures can we take to prevent that?

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      • NogBadTheBadN
        NogBadTheBad
        last edited by

        Maybe someone linked a LAN port to a Lan port causing STP issues or maybe they had a dhcp server on the device that they connected to the lan port.

        Whatever you need to fix the issue it needs to be done on the switches not the router.

        What shows in the switch logs oh its a dumb switch so I doubt its manageable.

        Andy

        1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

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        • jahonixJ
          jahonix
          last edited by

          On the core switch where the jack connects to enable STP/RSTP and probably rate-limit outgoing ports to the rooms.

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          • DerelictD
            Derelict LAYER 8 Netgate
            last edited by

            Just make sure they can't just "choose" to be elected your spanning tree root or something stupid like that.

            Are your wired and wireless networks on the same layer 2? You might consider separating them else someone who connects wired and wireless at the same time with something like an Airport express in "join a wireless network" mode will create a bridging loop. probably many ways to accomplish that with two ports to the same layer 2 in the same location. (one wireless, one wired).

            You ought to be able to just use the same CP on both networks.

            Chattanooga, Tennessee, USA
            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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