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    Problem with pppoe over vlan

    Scheduled Pinned Locked Moved General pfSense Questions
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    • stephenw10S Online
      stephenw10 Netgate Administrator
      last edited by

      Hmm, I can't replicate that. Though interestingly the box I'm testing on (my home edge device) has all its interfaces, including pppoe, as VLANs on the same lagg0 parent. You might expect it to force a vlan reload in the situation but it does not....

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

        @stephenw10 said in Problem with pppoe over vlan:

        Hmm, I can't replicate that. Though interestingly the box I'm testing on (my home edge device) has all its interfaces, including pppoe, as VLANs on the same lagg0 parent. You might expect it to force a vlan reload in the situation but it does not....

        Its strange because I have nothing special here and i have not made any change to the pfsense Installation - its a simply firewall-router with a few packages (see signature). The vlan7 on the pppoe is required by the Internet-Provider.
        Hmmmm

        PS. Until a few weeks I have used my pfsense without vlan7 thats why the problem had not occured in the past (I suppose).

        PPS. I have now, made an extra check of the patch pppoe-patch
        and it confirms that the patch is allready on the system.

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        • stephenw10S Online
          stephenw10 Netgate Administrator
          last edited by

          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

          fireodoF 1 Reply Last reply Reply Quote 0
          • fireodoF Offline
            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 Offline
                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 Offline
                    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 Offline
                        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 Offline
                            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 Offline
                                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 Offline
                                    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! 👍 👍

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                                    • fireodoF Offline
                                      fireodo @stephenw10
                                      last edited by

                                      @stephenw10

                                      Hi anything new in this problem? Just asking! 😊

                                      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 Offline
                                          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 Offline
                                            fireodo @fireodo
                                            last edited by fireodo

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