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    Broken network scenario is broken

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    14 Posts 9 Posters 2.3k Views
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    • H
      heper
      last edited by

      a town has 2 streets with the exactly same name & numbering scheme.

      it is impossible for guy/girl from the post office to deliver letters/packages to either of the 2 streets, because the addresses are identical.

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      • D
        doktornotor Banned
        last edited by

        When you come up with a network "design" such as the one mentioned in the OP, the real question here is "should I really maintain my firewall?!"

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        • C
          chris23
          last edited by

          agreed, a reasonable amount of networking/subnet understanding is important.  Maybe do some testing/learning first…

          a friend test this same scenario but with Microsoft TMG, and it's worked fine !

          micro$oft for a firewall lol, as if that's going to end well…

          My weather station: http://rollestonpark.myzen.co.uk

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            On product that support ended back in april to boot..

            I don't know what your buddy was/is doing..  But you can not put the same network on 2 sides of a "router/firewall" and expect it to work…  This is just networking 101..

            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 24.11 | Lab VMs 2.8, 24.11

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            • C
              cmb
              last edited by

              Indeed what you're describing isn't valid with any router or firewall. It won't work reliably with TMG or any other device on Earth either, you can't have conflicting networks and have things work correctly. Subject corrected accordingly. :)

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                If your pfsense wan is 192.168.1.0/24 then make your lan 192.168.2.0/24 and you will be fine.. .

                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 24.11 | Lab VMs 2.8, 24.11

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                • GertjanG
                  Gertjan
                  last edited by

                  @johnpoz:

                  If your pfsense wan is 192.168.1.0/24 then make your lan 192.168.2.0/24 and you will be fine.. .

                  Yeah …. but this will be a thought one for Mgd_Elislam. cmb just told him that doing so will force him to change planets.
                  So, your advise will come in very hard  ;D

                  edit: btw: love the new subject line !

                  No "help me" PM's please. Use the forum, the community will thank you.
                  Edit : and where are the logs ??

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                  • C
                    cmb
                    last edited by

                    Well, there's something on the Mars rover running OpenBSD I've been told, and it can't do it either. So won't even work on Mars! :D

                    It's a location-independent reality of networking. Yeah, use a diff subnet on LAN.

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                    • D
                      divsys
                      last edited by

                      edit: btw: love the new subject line !

                      Noticed that right off and thought: That must mean all is OK, so this thread is not particularly useful - oh wait….... :o

                      -jfp

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                      • R
                        rubic
                        last edited by

                        How to make your own default gateway out of nothing?

                        Say, you have a gateway that isn't default. Of course, you can use the checkbox in the gateway settings to set it as default, but that's too easy.

                        In the 'System: Static Routes' add the following:

                        
                        Destination network    Gateway
                                  0.0.0.0/1    your_gateway
                                128.0.0.0/1    your_gateway
                        
                        

                        Now 'your_gateway' is default, no matter what you see in the 'Diagnostics: Routing tables'. Ugly enough? Yes, but this technique is used by "AVAST SecureLine VPN" client, for example, and has stone-hard theoretical grounds.

                        "The Longest Prefix Always Wins", so, back to the topic, dear Mgd_Elislam, set your WAN IP to 192.168.1.2/30. Set your LAN IP to 192.168.1.4/24, newer use 192.168.1.3. Nowhere! Probably your friend used alike settings in TMG.

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          And that is still a broke setup using /30 on wan and /24 on lan since they STILL Overlap!!!

                          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 24.11 | Lab VMs 2.8, 24.11

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