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    Can't Get It Working

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    29 Posts 7 Posters 5.9k Views
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    • D Offline
      divsys
      last edited by

      You can probably get away with going into Firewall->Rules->LAN and clicking on the "+" besides the  "Default allow LAN to any rule", which will copy that rule and make a new one you can change. It will take you into the details and you can simply change the Interface from LAN to OPT1.

      Save it, Apply changes, then your good to go.

      Edit:
      As per cthomas, if you want to BLOCK traffic, you can add further rules to LAN,OPT1 or both.

      -jfp

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      • stephenw10S Offline
        stephenw10 Netgate Administrator
        last edited by

        @divsys:

        You can probably get away with going into Firewall->Rules->LAN and clicking on the "+" besides the  "Default allow LAN to any rule", which will copy that rule and make a new one you can change.

        Ah, it's never occurred to me that you could do that. You learn something everyday.  :)
        However you will also have to change the source address from LAN net to OPT1 net.

        Steve

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        • D Offline
          divsys
          last edited by

          Yes, the source address change is one of those "oh yeah, don't forget to change that too…" I remember when I'm  looking at the rule sheet - not while I'm typing  :(

          Thanks for the catch  :)

          -jfp

          -jfp

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          • B Offline
            bluegrass
            last edited by

            Ok, I'm able to access the internet through both LAN ports on my firewall HOWEVER, I can also access the web GUI on either port using either IP address. No matter which LAN port I'm on I can sign in to the GUI with 192.168.2.1 and 192.168.3.1

            That shouldn't be happening, right?

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            • stephenw10S Offline
              stephenw10 Netgate Administrator
              last edited by

              That is the expected behaviour if you have 'allow any' rules on each LAN interface.

              Steve

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              • B Offline
                bluegrass
                last edited by

                I tried changing the "allow any" rule to "allow WAN subnet to LAN1 subnet" but then I can't access anything over that port. I put back the allow any rule and it works but I can also access both ports from either again.

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                • D Offline
                  divsys
                  last edited by

                  @bluegrass:

                  I tried changing the "allow any" rule to "allow WAN subnet to LAN1 subnet" but then I can't access anything over that port. I put back the allow any rule and it works but I can also access both ports from either again.

                  If you're just trying to stop LAN from seeing OPT1 (and vice versa), you can add a LAN1 rule:

                  "Allow LAN to NOT OPT1 subnet"

                  And similarly on OPT1

                  "Allow OPT1 to NOT LAN"

                  Depends on what you're trying to acheive

                  -jfp

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                  • stephenw10S Offline
                    stephenw10 Netgate Administrator
                    last edited by

                    Yep. Or you can explicitly block access to the OPT1 interface address from the LAN subnet with a block rule placed above the 'allow any' rule. Then you can still access devices on OPT1 from LAN.

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                    • B Offline
                      bluegrass
                      last edited by

                      I'm not sure if I'm doing this right so here's a screen cap of what I did. There was no change.

                      fhgf.JPG
                      fhgf.JPG_thumb

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                      • johnpozJ Online
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        So you want to BLOCK going anywhere but that lan segment?  That is what that rule would do.

                        Post your lan rules so we can see exactly what other rules you have in place, etc.  That rule by itself would block everything but the lan segment.  So you would not be able to go to the internet..  Is that what your after?

                        An intelligent man is sometimes forced to be drunk to spend time with his fools
                        If you get confused: Listen to the Music Play
                        Please don't Chat/PM me for help, unless mod related
                        SG-4860 25.07.1 | Lab VMs 2.8, 25.07.1

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                        • ? This user is from outside of this forum
                          Guest
                          last edited by

                          Enter firewall block rules on the "LAN" or "OPT1" for port 80 and 443 from "LAN" or "OPT1" to "IP of ROUTER", then nobody can reach the interface from this LAN / OPT1

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                          • stephenw10S Offline
                            stephenw10 Netgate Administrator
                            last edited by

                            Hmm, that rule is definitely wrong. It will never (or should never) match any traffic as you will never see any packets going into the LAN interface that have source 'SERVER subnet'.

                            What exactly are you trying to achieve?

                            Steve

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                            • johnpozJ Online
                              johnpoz LAYER 8 Global Moderator
                              last edited by

                              I didn't even catch the server source ;)  Yeah that would never even trigger.

                              An intelligent man is sometimes forced to be drunk to spend time with his fools
                              If you get confused: Listen to the Music Play
                              Please don't Chat/PM me for help, unless mod related
                              SG-4860 25.07.1 | Lab VMs 2.8, 25.07.1

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                              • B Offline
                                bluegrass
                                last edited by

                                What I'm trying to do is keep the SERVER and LAN ports from being able to communicate with each other.

                                I don't want anyone on my home network to accidently get access to my little web server and screw something up. And I don't want any traffic for the server getting onto my home network.

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                                • B Offline
                                  bluegrass
                                  last edited by

                                  Ok I think I got it fixed. I looked in the 'Definitive Guide to PFSense' and it said: "Rules in PFSense are applied on a per-interface basis, always in the inbound direction on that interface. This means traffic initiated from the LAN is filtered using the LAN interface rules.Traffic initiated from the Internet is filtered with the WAN interface rules."

                                  So I changed the source on Server TO server and source on LAN to LAN and now the two ports don't appear to be able to access each other.

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                                  • stephenw10S Offline
                                    stephenw10 Netgate Administrator
                                    last edited by

                                    Sounds good.
                                    If you're in any doubt post up some screen shots of your rules.  :)

                                    Steve

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                                    • B Offline
                                      bluegrass
                                      last edited by

                                      Ok, here's the rules for my LAN and SERVER ports.

                                      ![LAN Rules 2.JPG](/public/imported_attachments/1/LAN Rules 2.JPG)
                                      ![LAN Rules 2.JPG_thumb](/public/imported_attachments/1/LAN Rules 2.JPG_thumb)
                                      ![Server Rules 2.JPG](/public/imported_attachments/1/Server Rules 2.JPG)
                                      ![Server Rules 2.JPG_thumb](/public/imported_attachments/1/Server Rules 2.JPG_thumb)
                                      ![LAN Rules.JPG](/public/imported_attachments/1/LAN Rules.JPG)
                                      ![LAN Rules.JPG_thumb](/public/imported_attachments/1/LAN Rules.JPG_thumb)
                                      ![Server Rules.JPG](/public/imported_attachments/1/Server Rules.JPG)
                                      ![Server Rules.JPG_thumb](/public/imported_attachments/1/Server Rules.JPG_thumb)

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                                      • stephenw10S Offline
                                        stephenw10 Netgate Administrator
                                        last edited by

                                        Looks good, that should block all IPv4 traffic between the LAN and SERVER subnets.  :)
                                        It won't block IPv6 traffic if you are using IPv6 at all. Change the TCP/IP version to 'any' if you want to block v6 too.

                                        Steve

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                                        • B Offline
                                          bluegrass
                                          last edited by

                                          Thanks for all the help.

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