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    Internal routing stops when internet goes down

    Scheduled Pinned Locked Moved General pfSense Questions
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    • johnpozJ Online
      johnpoz LAYER 8 Global Moderator
      last edited by

      Well that doesn't make any sense either to be honest..

      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 | Lab VMs 2.8, 25.07

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      • U Offline
        user_three Rebel Alliance
        last edited by

        Do you have a specific rule set up for internal routing? You can test this quickly with an any<->any rule on the LAN interface.

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        • J Offline
          jhunt
          last edited by

          I did try that, thanks for the suggestion but it did fix the problem.

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          • J Offline
            jhunt @johnpoz
            last edited by

            @johnpoz said in Internal routing stops when internet goes down:

            Well that doesn't make any sense either to be honest..

            I agree, I can't explain it but I can't argue with results. Today I replaced the old switch with a new brand name switch and I cannot reproduce the problem. (I've tried several times.)

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            • johnpozJ Online
              johnpoz LAYER 8 Global Moderator
              last edited by johnpoz

              Well then maybe just a flaky switch and coincidental? How would a switch have any idea your wan was up or down? It wouldn't.. Unless its some sort of managed/smart switch and need to talk to the mothership on the internet to work? What specific make and model switch was it?

              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 | Lab VMs 2.8, 25.07

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              • J Offline
                jhunt
                last edited by

                It is a managed switch.(Not fully managed but it can do vlans and a few other things.) tp-link TL-SG108E version 4. I thought the same thing about it wanting to talk to the mothership but it didn't have problems when I created a rule to block the switch from the internet. I never even saw it trying to reach the internet. I've had this switch for years and haven't had issues until about a year ago.

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                • JKnottJ Offline
                  JKnott @jhunt
                  last edited by

                  @jhunt said in Internal routing stops when internet goes down:

                  tp-link TL-SG108E version 4

                  Is that one of the models that doesn't do VLANs properly?

                  PfSense running on Qotom mini PC
                  i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                  UniFi AC-Lite access point

                  I haven't lost my mind. It's around here...somewhere...

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                  • U Offline
                    user_three Rebel Alliance @jhunt
                    last edited by user_three

                    @jhunt said in Internal routing stops when internet goes down:

                    I've had this switch for years and haven't had issues until about a year ago.

                    Look for a firmware update. Although it probably won't fix the issue.

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                    • J Offline
                      jhunt @JKnott
                      last edited by

                      @JKnott

                      Is that one of the models that doesn't do VLANs properly?

                      Could be? I use a few VLANs and they seemed to work fine. (unless the WAN was down)

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                      • J Offline
                        jhunt @user_three
                        last edited by

                        @user_three said in Internal routing stops when internet goes down:

                        @jhunt said in Internal routing stops when internet goes down:

                        I've had this switch for years and haven't had issues until about a year ago.

                        Look for a firmware update. Although it probably won't fix the issue.

                        Thanks for the suggestion but I looked before I bought the new switch. The old switch was running the latest firmware. Although the firmware was a few years old.

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                        • johnpozJ Online
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          @jhunt said in Internal routing stops when internet goes down:

                          tp-link TL-SG108E

                          Yeah those are those one that didn't do vlans correctly, wouldn't let you remove vlan 1. Then they came out with firmware fix for v3 but didn't list it for v2 or 1.. But now looks like they are on v5..

                          But with the way he described the connections, the wan doesn't even run through the switch as a vlan. So this switch would have no clue to if the wan is up or down, it would even know about it or care... It would be like your switch knowing if my line was up or down ;)

                          So unless there was some physical path of the wan through the switch, where it might see traffic or know if interface went down that caused a problem I really don't see how his wan status could have anything to do with traffic flowing through the switch. It just not possible. Unless it is checking if it can get to the internet in some way, and when that went down it had an issue.. Really seems unlikely.

                          But those switches are not very good anyway.. So not a big issue if taken out of the equation.

                          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 | Lab VMs 2.8, 25.07

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                          • JKnottJ Offline
                            JKnott @jhunt
                            last edited by

                            @jhunt

                            Certain models of TP-Link switches, including your don't handle VLANs properly, in that they allow multicasts to leak. There are apparently issues with VLAN 1 appearing on all VLANs. This may have been fixed with an update.

                            PfSense running on Qotom mini PC
                            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                            UniFi AC-Lite access point

                            I haven't lost my mind. It's around here...somewhere...

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