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    Bridge LAN ports to act like a switch

    Scheduled Pinned Locked Moved General pfSense Questions
    61 Posts 10 Posters 102.8k Views
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Ah OK. Thanks for that.
      Two things I notice straight away:

      Your WAN has a /8 subnet which is far too large. It should probably be /24.

      Your WAN address is in a private IP range so you must have 'Block private networks' unchecked in Interfaces: WAN:
      I'm not sure if you have done that already from the config file.
      Edit: Now I see you have have unchecked that so ignore that remark.
      Is your WAN connected to another router? If so you will need to have port 31950 forwarded on that also.

      I see you have not yet added em1 to the bridge, is that because this file is taken after step 4 in my instructions?
      Adding the interface to the bridge as in step 5 should have no effect of the other interfaces. Perhaps you are adding it incorrectly? Is there anything connected to em1?

      I see you have not spoofed the MAC address yet in this file.

      Steve

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      • E
        extide
        last edited by

        I believe that you need to be using DHCP, otherwise windows will not allow you to change from public network type. However if you set the bridge MAC to the same as the real mac on the NIC then Windows clients should not even know you changed anything.

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Really? That would be odd. What public network uses static IPs? If are using static addresses it's almost certain to be a private network.  :-\

          If you set the bridge MAC to one that already exists you will have two devices on the network with the same MAC. Thus will lead to problems.

          Steve

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          • E
            extide
            last edited by

            Well, it is categorized as a 'Public Network' because that is the most secure profile, however what it is really identified as is "Unidentified Network" I believe this is because it uses the mac address of the DHCP server in order to identify the network.

            You would think it could also use the mac of the default gateway, but I don't believe it does, however I haven't tested this fact.

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            • B
              balubeto
              last edited by

              @stephenw10:

              Ah OK. Thanks for that.
              Two things I notice straight away:

              Your WAN has a /8 subnet which is far too large. It should probably be /24.

              Your WAN address is in a private IP range so you must have 'Block private networks' unchecked in Interfaces: WAN:
              I'm not sure if you have done that already from the config file.
              Edit: Now I see you have have unchecked that so ignore that remark.
              Is your WAN connected to another router? If so you will need to have port 31950 forwarded on that also.

              I see you have not yet added em1 to the bridge, is that because this file is taken after step 4 in my instructions?
              Adding the interface to the bridge as in step 5 should have no effect of the other interfaces. Perhaps you are adding it incorrectly? Is there anything connected to em1?

              I see you have not spoofed the MAC address yet in this file.

              Steve

              If I move the LAN interface in the brigde and I set to "none" his configuration type, my computers access no more my firewall and internet (I also tried with a conputer with XP).

              In the WAN, because I have set to 24 its netmask when the its address is 10.0.0.2?

              Connected to the WAN there is a adsl router (10.0.0.1) configured so that all its ports are open. To be sure, as I can test this with the firewall?

              So, where I'm wrong?

              Thanks

              Bye

              balubeto

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Ok in step 5 you add the remaining NIC (that was previously assigned as LAN) to the bridge so that you can then use it the same as the other ports. In your case it will be em1. Here is what you should be doing:

                Go to Interfaces: (assign): in the webGUI.
                Click the '+' button to add another interface. It should appear as opt4.
                Use the dropdown selection to set it as em1. It should already be em1 for you as that's the only NIC you have unused.
                Go to Interfaces: OPT4: Click enable, set it as type 'none'. Save and apply.
                Now go to Interfaces: (assign): Bridges: and edit bridge0. Add OPT4 to the bridge. Save and apply.
                Done.  :)

                You can use 10.0.0.2/24 for WAN. That will mean that tries to talk directly to IP addresses ranging 10.0.0.1 to 10.0.0.255. That includes your WANGW address, which is the only address it has to talk to.

                Having ports open on your modem is not enough they need to be forwarded also.
                It is better to have your modem set to bridge mode so that pfSense receives a public IP or if that's not possible you can sometimes use a DMZ connection. I can't really help you with the modem as they are all different. You could test it by connecting a client directly to the modem (at a 10.0.0.X address) and re run the port test.
                Your port forwards and firewall rules in pfSense look good.

                Steve

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                • E
                  extide
                  last edited by

                  Yeah right now you are in a situation referred to as being "Double NAT" which can cause quite a bit of problems. If you can remove that first layer (which is the 10.0.0.x IP's) and give the pfsense box the real public IP, you will have a lot easier time with things.

                  However, this is entirely un-related to setting up the bridge.

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                  • B
                    balubeto
                    last edited by

                    How do I create the OPT4 interface when my firewall only has 5 network interfaces?

                    How do I make sure that my pfSense themselves manage the public IP with an ADSL connection in PPPoA?

                    Thanks

                    Bye

                    balubeto

                    1 Reply Last reply Reply Quote 0
                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      If you read through your config file you'll see that your em1 NIC is no longer assigned to any interface. You can see that in the webgui as well.

                      WAN  em2
                      LAN    bridge0
                      OPT1  em0
                      OPT2  em3
                      OPT3  em4

                      Hence you can add:

                      OPT4  em1

                      If you are using an ADSL connection with PPPoA then your modem needs to support PPPoA to PPPoE bridging since pfSense cannot support PPPoA directly. I have that setup with a Draytek V120. What is your modem?

                      Steve

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                      • B
                        balubeto
                        last edited by

                        @stephenw10:

                        If you read through your config file you'll see that your em1 NIC is no longer assigned to any interface. You can see that in the webgui as well.

                        WAN  em2
                        LAN    bridge0
                        OPT1  em0
                        OPT2  em3
                        OPT3  em4

                        Hence you can add:

                        OPT4  em1

                        If you are using an ADSL connection with PPPoA then your modem needs to support PPPoA to PPPoE bridging since pfSense cannot support PPPoA directly. I have that setup with a Draytek V120. What is your modem?

                        Steve

                        I have an 150Mbps Wireless N ADSL2+ Modem Router http://www.tp-link.it/products/details/?categoryid=219&model=TD-W8951ND . How should I configure it remembering that I have an ADSL connection in PPPoA?

                        Thanks

                        Bye

                        balubeto

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                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          So you got the bridge setup ok?

                          That router appears to have a bridge mode that might work in pppoa. There is almost no description in the user manual though so it's impossible to say for sure.
                          In 'Interfaces Setup' in 'Internet' select pppoe/pppoa as the connection type and set 'Bridge Interface' to 'activated'.
                          If that doesn't work the next best option would be to use the DMZ feature to send all traffic to the pfSense box.
                          Please start a new thread for that though if the pfSense bridge is now working.

                          Steve

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