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    Problem with pppoe over vlan

    Scheduled Pinned Locked Moved General pfSense Questions
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    • fireodoF Online
      fireodo @stephenw10
      last edited by

      @stephenw10 said in Problem with pppoe over vlan:

      On other test systems where I have VLANs on different parent interfaces they are not rebuilt:

      Aug 18 14:10:46 	check_reload_status 	425 	Syncing firewall
      Aug 18 14:10:53 	check_reload_status 	425 	Restarting ipsec tunnels
      Aug 18 14:10:56 	check_reload_status 	425 	updating dyndns lan
      Aug 18 14:10:58 	check_reload_status 	425 	Reloading filter 
      

      That's resaving LAN with no changes.....

      Either not all that patch code is in your system somehow or you config is triggering the VLAN rebuild with something. Hmm

      Hi Steve, would you mind to send me your interfaces.inc and interfaces.php? Thanks a lot!

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      • stephenw10S Online
        stephenw10 Netgate Administrator
        last edited by

        Hmm, one thing I notice here is that the igb0 link goes down when you saved that. That would not normally happen if you save an interface without changing anything.
        I assume igb0 is your LAN there? What settings do you have on that interface?

        Steve

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        • fireodoF Online
          fireodo @stephenw10
          last edited by fireodo

          @stephenw10 said in Problem with pppoe over vlan:

          Hmm, one thing I notice here is that the igb0 link goes down when you saved that. That would not normally happen if you save an interface without changing anything.
          I assume igb0 is your LAN there? What settings do you have on that interface?

          Steve

          Look:
          Lan.png.jpg

          I also downloaded the original files from github

          https://github.com/pfsense/pfsense/blob/RELENG_2_4_5/src/etc/inc/interfaces.inc

          https://github.com/pfsense/pfsense/blob/RELENG_2_4_5/src/usr/local/www/interfaces.php

          and have compared with mine and they are identical.

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          • stephenw10S Online
            stephenw10 Netgate Administrator
            last edited by

            Do you have Snort or Suricata running? That can cause interfaces to reconnect sometimes. In in-line mode perhaps.

            If you assign/enable igb1 does that also go down/up when you resave LAN?

            Steve

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            • fireodoF Online
              fireodo @stephenw10
              last edited by fireodo

              @stephenw10 said in Problem with pppoe over vlan:

              Do you have Snort or Suricata running? That can cause interfaces to reconnect sometimes. In in-line mode perhaps.

              Yes, i have Snort but not in in-line mode.

              If you assign/enable igb1 does that also go down/up when you resave LAN?

              igb1 is assigned to vlan7 and to pppoe ...

              Steve

              PS. Its only the vlan that get renewed, igb1 is left untouched.
              In conclusion - when settings are applied (in my case) on LAN (igb0) or WiFi (ath0_wlan0) only the vlan gets affected! (When applying settings on LAN (igb0) its normal that igb0 go down/up)

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              • stephenw10S Online
                stephenw10 Netgate Administrator
                last edited by

                Right, but I'm saying if you assign igb1 as a new interface and enable it with no config but just so it's up does that also go down when you make a change. That would explain why the vlan is rebuilt, but not why igb1 goes down.

                Steve

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                • fireodoF Online
                  fireodo @stephenw10
                  last edited by fireodo

                  @stephenw10 said in Problem with pppoe over vlan:

                  Right, but I'm saying if you assign igb1 as a new interface and enable it with no config but just so it's up does that also go down when you make a change. That would explain why the vlan is rebuilt, but not why igb1 goes down.

                  Steve

                  Yes it also goes down, here the dmesg output:

                  igb1: link state changed to DOWN
                  igb1.7: link state changed to DOWN
                  igb1: link state changed to UP
                  igb1.7: link state changed to UP
                  vlan0: changing name to 'igb1.7'

                  PS. Maybe its helpful to know that my system was continuously updatet from 2.4.3 (I'm using pfsense longer but 2.4.3 was a fresh install with config recovery)

                  PPS. Another Idea: Snort needs interfaces in promiscuous mode - could that be a possible culprit?

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                  • stephenw10S Online
                    stephenw10 Netgate Administrator
                    last edited by

                    Mmm, exactly Snort applies promiscuous mode when it starts.

                    What happens if you just restart Snort?

                    What interfaces do you have Snort running on?

                    It looks like the VLAN here is correctly being recreated because the parent interface is brought down. That's why I can't replicate it here. I'll try with Snort....

                    Steve

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                    • fireodoF Online
                      fireodo @stephenw10
                      last edited by fireodo

                      @stephenw10 said in Problem with pppoe over vlan:

                      Mmm, exactly Snort applies promiscuous mode when it starts.

                      What happens if you just restart Snort?

                      Snort restarts without any issue.

                      What interfaces do you have Snort running on?

                      WAN interface only.

                      It looks like the VLAN here is correctly being recreated because the parent interface is brought down. That's why I can't replicate it here. I'll try with Snort....

                      Thanks, a lot!

                      Here are all the pkgs I use: Cron, iftop, iperf, LCDproc, nmap, pfBlockerNG-devel, RRD_Summary, Shellcmd, snort

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                      • stephenw10S Online
                        stephenw10 Netgate Administrator
                        last edited by

                        Hmm, I can't replicate seeing the NIC link go down however I try to apply it....

                        fireodoF 1 Reply Last reply Reply Quote 0
                        • fireodoF Online
                          fireodo @stephenw10
                          last edited by fireodo

                          @stephenw10 said in Problem with pppoe over vlan:

                          Hmm, I can't replicate seeing the NIC link go down however I try to apply it....

                          I crashed myself my head - I have no clou where to set the axe ... definitiv clear is that every time I save a interface (without any changes) (LAN or WIFI or the OPT2 igb1-temporary created) the vlan gets remade ... and that kills the pppoe!

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                          • stephenw10S Online
                            stephenw10 Netgate Administrator
                            last edited by

                            Yup. I see it it happening for you I just can't re-create it here...yet.

                            fireodoF 2 Replies Last reply Reply Quote 1
                            • fireodoF Online
                              fireodo @stephenw10
                              last edited by

                              @stephenw10 said in Problem with pppoe over vlan:

                              Yup. I see it it happening for you I just can't re-create it here...yet.

                              Thanks for not giving up! ๐Ÿ‘ ๐Ÿ‘

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                              • fireodoF Online
                                fireodo @stephenw10
                                last edited by

                                @stephenw10

                                Hi anything new in this problem? Just asking! ๐Ÿ˜Š

                                Regards,
                                fireodo

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                                • stephenw10S Online
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  No I've been unable to replicate it. Something you have set there is causing the NIC to flap and I'm not sure what.
                                  We might need to review your config somehow...

                                  Steve

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                                  • fireodoF Online
                                    fireodo @stephenw10
                                    last edited by

                                    @stephenw10 said in Problem with pppoe over vlan:

                                    No I've been unable to replicate it. Something you have set there is causing the NIC to flap and I'm not sure what.
                                    We might need to review your config somehow...

                                    Steve

                                    OK, understood!

                                    Thanks anyway!
                                    fireodo

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                                    • fireodoF Online
                                      fireodo @fireodo
                                      last edited by fireodo

                                      This post is deleted!
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                                      • fireodoF Online
                                        fireodo @stephenw10
                                        last edited by

                                        @stephenw10

                                        BTW: I set up a identical machine (APU2C0) with a fresh pfsense 2.4.5-RELEASE-p1 with no other packages and the behavior is exactly like my productive pfsense. Saving the LAN(igb0) or the WIFI(ath0_wlan0) interface without any changes made, make the vlan to be remade! (Vlan is on igb1). Anyway seems I have to live with it ๐Ÿ˜ข

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                                        • stephenw10S Online
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          Hmm, wondering if it's because of the bridge maybe... Though without igb1 in the bridge you would not expect that to hit WAN...

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                                          • fireodoF Online
                                            fireodo @stephenw10
                                            last edited by fireodo

                                            @stephenw10 said in Problem with pppoe over vlan:

                                            Hmm, wondering if it's because of the bridge maybe... Though without igb1 in the bridge you would not expect that to hit WAN...

                                            igb1 is not in the bridge. The bridge is between LAN (igb0) and WIFI (ath0_wlan0). igb1 has no interface assign on it (only the vdsl-modem is connected to it) and is only parent for vlan7 and pppoe connects via vlan7.

                                            Regards and fine weekend,
                                            fireodo

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