Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    1 WAN interface, 3 LAN interfaces, OpenVPN allow communication to all networks

    Scheduled Pinned Locked Moved General pfSense Questions
    44 Posts 4 Posters 2.2k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      That rule will work if you put it on the OPT2 interface. It gets applied outbound on the interface so must be on OPT2.

      J 1 Reply Last reply Reply Quote 0
      • J
        jg8000 @stephenw10
        last edited by

        @stephenw10

        Should the rule be greyed out like this? I still can't get it to go, I changed the interface to OPT2. My test client is on the LAN interface (192.168.1.5)

        2e64df91-b2f7-4b83-8f2c-47af09840fdd-image.png

        2ba6dcff-32f2-4d85-9342-000b5c30524b-image.png

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

          Oh sorry you need to set outbound NAT to hybrid or manual to apply user rules. I suggest hybrid so auto rules are still updated.

          J 1 Reply Last reply Reply Quote 0
          • J
            jg8000 @stephenw10
            last edited by

            @stephenw10
            Thank you, it's no longer greyed out but still not working.

            8ddeaca9-b24c-415a-8c69-4532063f297c-image.png

            The idea is for (LAN) 192.168.1.5 to access (OPT2) 192.168.3.101 as if it were on the 192.168.3.0/24 subnet. Do I need to specify port ranges or anything? I hope not.

            I can verify access by switching from (LAN)192.168.1.5 to (OPT2) 192.168.3.5 on the windows test client and accessing the web IPMI interface.

            231e7b23-899b-4b63-9cf8-196114acb27f-image.png

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

              Check the state table again. You should see the translation on the OPT2 state.

              J 1 Reply Last reply Reply Quote 0
              • J
                jg8000 @stephenw10
                last edited by

                @stephenw10

                I only see activity from 192.168.15 to the pfsense admin web admin. Nothing for 192.168.3

                96348263-af11-46c6-94a2-bc95071e72a6-image.png

                1 Reply Last reply Reply Quote 0
                • stephenw10S
                  stephenw10 Netgate Administrator @jg8000
                  last edited by

                  @jg8000 said in 1 WAN interface, 3 LAN interfaces, OpenVPN allow communication to all networks:

                  I can verify access by switching from (LAN)192.168.1.5 to (OPT2) 192.168.3.5 on the windows test client

                  How exactly are you making that switch? Does that client have NICs in both subnets? If so it's probably not sending traffic through pfSense at all.

                  J 1 Reply Last reply Reply Quote 0
                  • J
                    jg8000 @stephenw10
                    last edited by

                    @stephenw10

                    I just use it as a sanity check. I change the adapter IP from the 192.168.1 to the 192.168.3. and the IPMI port is on the same switch. So no, I doubt pfsense is involved. It only tells me that it's up and accessible.

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

                      Hmm, but sending from 1.5 to 3.5 should go through pfSense and seemingly isn't (no states). So either something else is routing between those subnets, layer 3 switch maybe, or the client itself can access both subnets directly. Or perhaps it's just not sending, no default route?

                      J 2 Replies Last reply Reply Quote 0
                      • J
                        jg8000 @stephenw10
                        last edited by jg8000

                        @stephenw10

                        The IPMI has a default route, I set it to 192.168.3.1. The 192.168.1.5 interface has no gateway.

                        No layer 3 switch, IPMI cable to cheap netgear switch, and cable from same switch to windows client. I can't have the windows test client 192.168.1.5 have a gateway because it's dual homed with a WAN interface and the WAN needs it.

                        1 Reply Last reply Reply Quote 0
                        • J
                          jg8000 @stephenw10
                          last edited by jg8000

                          @stephenw10

                          On the real server setup, I am able to see the states when going to the 192.168.3.0/24 from the VPN net 192.168.50.0/24. I'm not sure what to make of it.

                          Although it doesn't seem to matter if the target http address is real or not, but I guess that doesn't matter, looks like it's making an attempt?

                          af1fd218-4385-4985-88cb-d829fc28bf81-image.png

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

                            The states are correct but there is no translation. Did you add an appropriate OBN rule there too?

                            J 1 Reply Last reply Reply Quote 0
                            • J
                              jg8000 @stephenw10
                              last edited by

                              @stephenw10

                              I see those states no matter if the OBN is there or not.

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

                                What OBN rule are you setting there?

                                J 1 Reply Last reply Reply Quote 0
                                • J
                                  jg8000 @stephenw10
                                  last edited by

                                  @stephenw10 Screenshot 2024-05-24 at 8.36.46 AM.png

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

                                    Is that destination the address or subnet? It needs to be the OPT2 subnet there to match.

                                    J 1 Reply Last reply Reply Quote 0
                                    • J
                                      jg8000 @stephenw10
                                      last edited by

                                      @stephenw10

                                      It's the subnet. Does I need this Outbound rule when setting the OPT2 (192.168.3.0/24) as local networks in the OpenVPN config?

                                      Screenshot 2024-05-24 at 8.50.02 AM.png .

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

                                        Yes you still need the rule because hosts in the OPT2 subnet will block access from the VPN subnet directly.

                                        That rule should match if the subnets are correct.

                                        J 1 Reply Last reply Reply Quote 0
                                        • J
                                          jg8000 @stephenw10
                                          last edited by

                                          @stephenw10

                                          Is there a way to just have the vpn clients land on the OPT2 subnet? Would that solve the problem?

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

                                            Yes, you can setup the VPN as TAP and bridge the interfaces. But that will only work for one interface and you have 3. And it introduces a bunch of other things you don't want so I wouldn't recommend it.

                                            Adding an OBN rule that matches will allow this to work. The best solution is to just allow it on the hosts though.

                                            Make sure the rules are actually loading in Status > Filter Reload. Make sure it returns without errors.

                                            J 1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.