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    Howto Block LAN Stations to communicate each other ?

    Scheduled Pinned Locked Moved Firewalling
    8 Posts 3 Posters 4.2k Views
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    • F
      Funhe
      last edited by

      Hello !

      1.First of all my English is a bit poor , so i am sorry for that.

      2.I am new to firewalling

      My problem is :

      I have a pfSense box in our corporate building. ( I Like it very much ). And i have a Subnet 192.168.0.0/16 on the lan side.
      I want to block all Microsoft Network communication ( Printer Sharing, Document Sharing ) between the workstations, but i
      have no success.

      Please help !

      pfSense 1.0-rc1 with Trasparent Squid. nothing else installed.

      Attila

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      • H
        hoba
        last edited by

        This is not possible as this traffic doesn't pass the firewall. Only traffic leaving your local subnet will hit the pfsense. Traffic inside the local subnet is happening between the workstations directly.

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        • F
          Funhe
          last edited by

          Ok then Thanks.

          How can i make with pfsense multiple subnets ?

          Attila

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          • H
            hoba
            last edited by

            Just add additional interfaces. Assign each interface a different IP from a different subnet. You then can control traffic between the subnets with the firewallrules.

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            • F
              Funhe
              last edited by

              Can i make virtual interfaces with pfSense ?

              Attila

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              • H
                hoba
                last edited by

                If you have a vlanswitch you can have multiple vlaned interfaces at one physical nic.

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                • F
                  Funhe
                  last edited by

                  I mean like linux eth1:1 eth1:2 eth1:3 .. etc…

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                  • T
                    thinair
                    last edited by

                    I know with Cisco switches you can setup a private VLAN where the isolated ports can only communicate with the promiscuous port(s).  For example you have two computers on two isolated ports, and pfsense connected to a promiscuous port, each computer can communicate with the pfsense box, but not with each other.

                    The router/pfsense doesn't really interact at all if the communicating computers are on the same subnet.

                    Nelson Papel

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