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    DNS/DHCP stop working suddenly

    Scheduled Pinned Locked Moved General pfSense Questions
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    • tinfoilmattT
      tinfoilmatt @stephenw10
      last edited by

      @stephenw10 it's pretty obviously, based on OP's detailed posts and a fair bit of 'reading between the lines,' triggered gateway monitoring action following either transiest latency/loss of connecitivty or DHCP lease renewal.

      the rest of it is just system tailspin—which in fairness would, in all likelihood, eventually recover given enough time to do so. BSD and pfSense be solid like that.

      M 1 Reply Last reply Reply Quote 0
      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Yes, exactly I don't expect to just get hung up in the interface/network like that. You certainly can end up with a lot of script 'churn' when an interface drops out. Especially if there are other interfaces on it like VPNs etc. But it will stop after a few minutes unless the interface changes again.

        1 Reply Last reply Reply Quote 0
        • bmeeksB
          bmeeks @michmoor
          last edited by bmeeks

          @michmoor said in DNS/DHCP stop working suddenly:

          @stephenw10
          When @cyberconsultants mentioned suricata i did immediately go to my service watchdog and I have the following enabled.

          2a81fa14-6f7f-47e7-94b9-1fb1f9ac5b1b-image.png

          This is a set up Ive had for years now. I don't mind removing these services from monitoring but i don't see how it prevented a reboot. Ive upgraded/rebooted many times with these enabled.

          edit: I would also say that its likely something environmentally changed here but I have no idea what it could be. Short of adding a firewall rule, the config is static. Goes down for an upgrade every few months. So whatever is causing a cascade of headaches for me (love the term) its proving difficult to isolate.

          One of the issues with Service Watchdog is that the package is not super smart. It simply looks for the presence or absence of the monitored daemon, and sends it a start command if missing. Lots of things can result in normal restarts of certain daemons -- unbound being one of those daemons. Consider this scenario:

          unbound can be normally restarted by several things:

          1. If you have DHCP hostname registration enabled (most don't, but if you do) it will restart unbound each time a DHCP lease renews. But Service Watchdog is not aware of that. It will simply blindly see unbound not running at the instant it checks and then send it a restart command without knowing the service is already in the middle of restarting.

          2. A temporary issue with your WAN (packet loss, for example) might trigger a gateway alarm. If that deteriorates into a down condition, pfSense will issue a command to restart a bunch of processes including unbound. Again, Service Watchdog is ignorant of this process. It will see unbound missing from the list of running daemons when it spot checks, and thus issue a restart command. But pfSense itself is already restarting unbound. That can lead to problems.

          3. If you run pfBlockerNG, it can also issue restart commands to unbound in some update scenarios. Service Watchdog is ignorant of this process as well, and will just blindly issue a restart command when it fails to see a running unbound daemon.

          So, looking at the scenarios above you can see that it would be possible for bad things to happen if two unbound instances are trying to both start simultaneously. And whether or not this might occur would be random as it would depend on the exact timing differences between the natural restart process and when Service Watchdog sends it own independent restart signal.

          As @stephenw10 mentioned, Service Watchdog is really only intended for use when debugging a problem or working around some known issue. It is not a great solution for routine monitoring - especially monitoring of processes that can be restarted for legitimate reasons. This is why I preach to never use it with the IDS/IPS packages. Service Watchdog just does not consider if a service is legitimately restarting and thus the missing daemon instance is expected (and to be fair, it can't know this). It just says "no daemon present at this instant, so restart!".

          1 Reply Last reply Reply Quote 3
          • M
            michmoor LAYER 8 Rebel Alliance @tinfoilmatt
            last edited by michmoor

            @cyberconsultants @stephenw10

            Well lets dissect this a bit then. As far as Gateway actions are concerned its disabled. Has been for a while
            49dd2964-647c-4edd-82c6-f968eeb5605b-image.png

            So if the trigger is my WAN address releasing/renewing an address why all of a sudden?

            Based on the alerts from monitoring this problem started at 12:47am ET. Lets review what i could dig up in graylog.

            81b8d136-dcba-4d6f-9877-42e734f4556f-image.png

            Ping monitors to my WAN address also fail at this time. So the WAN address was not accessible.

            92280c32-03e6-4fa7-b7e1-2bf688cb5464-image.png

            During this time the filterlog still shows traffic inbound to my old IP so i am inferring that traffic was still making it into the firewall. In fact traffic continues to come inbound until 2:47:58am ET where there is a dhclient process starting which of course is the DHCP call out on the WAN.

            The link flaps a few times
            38ae9d8c-44fe-4c92-af52-451ce0ee018e-image.png

            Thats when things crap the bed and no more inbound flows

            timestamp	source	message
            2024-03-07T01:01:00.000-05:00	php-cgi[67141]:	php-cgi[67141]: rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:36:45.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
            2024-03-07T02:36:45.000-05:00	kernel:	kernel: ix3: link state changed to DOWN
            2024-03-07T02:36:45.000-05:00	GAFW	GAFW dhclient[32095]: ix3 link state up -> down
            2024-03-07T02:36:47.000-05:00	charon[71782]:	charon[71782]: 06[KNL] 162.193.210.96 disappeared from ix3
            2024-03-07T02:36:47.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Failed to get IP for interface ix3
            2024-03-07T02:36:47.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Cannot get IP address for ext interface ix3. Network is down
            2024-03-07T02:36:49.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
            2024-03-07T02:36:49.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:36:53.000-05:00	ntpd[86868]:	ntpd[86868]: Deleting interface #55 ix3, 162.193.210.96#123, interface stats: received=1173, sent=1257, dropped=0, active_time=127360 secs
            2024-03-07T02:36:55.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
            2024-03-07T02:36:55.000-05:00	kernel:	kernel: ix3: link state changed to UP
            2024-03-07T02:36:56.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:36:57.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:36:58.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:36:59.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:01.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:05.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:09.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
            2024-03-07T02:37:10.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
            2024-03-07T02:37:11.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 2
            2024-03-07T02:37:13.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 4
            2024-03-07T02:37:17.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 6
            2024-03-07T02:37:23.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 8
            2024-03-07T02:37:26.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
            2024-03-07T02:37:26.000-05:00	kernel:	kernel: ix3: link state changed to DOWN
            2024-03-07T02:37:26.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state up -> down
            2024-03-07T02:37:31.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 15
            2024-03-07T02:37:46.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 10
            2024-03-07T02:37:50.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
            2024-03-07T02:37:50.000-05:00	kernel:	kernel: ix3: link state changed to UP
            2024-03-07T02:37:50.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:50.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state down -> up
            2024-03-07T02:37:52.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:56.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
            2024-03-07T02:37:56.000-05:00	kernel:	kernel: ix3: link state changed to DOWN
            2024-03-07T02:37:56.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:56.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 10
            2024-03-07T02:37:56.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state up -> down
            2024-03-07T02:37:58.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
            2024-03-07T02:37:58.000-05:00	kernel:	kernel: ix3: link state changed to UP
            2024-03-07T02:37:58.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:37:58.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state down -> up
            2024-03-07T02:37:59.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:00.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:01.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:03.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:06.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:06.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 7
            2024-03-07T02:38:13.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 9
            2024-03-07T02:38:17.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
            2024-03-07T02:38:18.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
            2024-03-07T02:38:19.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
            2024-03-07T02:38:20.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 2
            2024-03-07T02:38:22.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 2
            2024-03-07T02:38:24.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 3
            2024-03-07T02:38:26.000-05:00	check_reload_status[460]:	check_reload_status[460]: rc.newwanip starting ix3
            2024-03-07T02:38:26.000-05:00	charon[71782]:	charon[71782]: 01[KNL] 192.168.1.94 appeared on ix3
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[89711]: /sbin/route add -host 192.168.1.254 -iface ix3
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[87947]: Adding new routes to interface: ix3
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[87082]: New Routers (ix3): 192.168.1.254
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[86571]: New Broadcast Address (ix3): 192.168.1.255
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[85955]: New Subnet Mask (ix3): 255.255.255.0
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[85320]: New IP Address (ix3): 192.168.1.94
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[84415]: ifconfig ix3 inet 192.168.1.94 netmask 255.255.255.0 broadcast 192.168.1.255
            2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:27.000-05:00	php-fpm[44338]:	php-fpm[44338]: /rc.newwanip: rc.newwanip: on (IP address: 192.168.1.94) (interface: WAN[wan]) (real interface: ix3).
            2024-03-07T02:38:27.000-05:00	php-fpm[44338]:	php-fpm[44338]: /rc.newwanip: rc.newwanip: Info: starting on ix3.
            2024-03-07T02:38:29.000-05:00	ntpd[86868]:	ntpd[86868]: Listen normally on 58 ix3 192.168.1.94:123
            2024-03-07T02:38:31.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Failed to get IP for interface ix3
            2024-03-07T02:38:31.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Cannot get IP address for ext interface ix3. Network is down
            2024-03-07T02:38:31.000-05:00	charon[71782]:	charon[71782]: 01[KNL] 192.168.1.94 disappeared from ix3
            2024-03-07T02:38:34.000-05:00	ntpd[86868]:	ntpd[86868]: Deleting interface #58 ix3, 192.168.1.94#123, interface stats: received=0, sent=0, dropped=4, active_time=5 secs
            2024-03-07T02:38:34.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
            2024-03-07T02:38:34.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:38:35.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
            2024-03-07T02:38:35.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:38:36.000-05:00	check_reload_status[460]:	check_reload_status[460]: rc.newwanip starting ix3
            2024-03-07T02:38:36.000-05:00	charon[71782]:	charon[71782]: 01[KNL] 192.168.1.94 appeared on ix3
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[42980]: /sbin/route add -host 192.168.1.254 -iface ix3
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[40764]: Adding new routes to interface: ix3
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[39766]: New Routers (ix3): 192.168.1.254
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[38095]: New Broadcast Address (ix3): 192.168.1.255
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[37026]: New Subnet Mask (ix3): 255.255.255.0
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[35894]: New IP Address (ix3): 192.168.1.94
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[34295]: ifconfig ix3 inet 192.168.1.94 netmask 255.255.255.0 broadcast 192.168.1.255
            2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[28646]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:37.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.newwanip: rc.newwanip: on (IP address: 192.168.1.94) (interface: WAN[wan]) (real interface: ix3).
            2024-03-07T02:38:37.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.newwanip: rc.newwanip: Info: starting on ix3.
            2024-03-07T02:38:39.000-05:00	ntpd[86868]:	ntpd[86868]: Listen normally on 59 ix3 192.168.1.94:123
            2024-03-07T02:38:41.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Failed to get IP for interface ix3
            2024-03-07T02:38:41.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Cannot get IP address for ext interface ix3. Network is down
            2024-03-07T02:38:41.000-05:00	charon[71782]:	charon[71782]: 08[KNL] 192.168.1.94 disappeared from ix3
            2024-03-07T02:38:44.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
            2024-03-07T02:38:44.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:38:44.000-05:00	ntpd[86868]:	ntpd[86868]: Deleting interface #59 ix3, 192.168.1.94#123, interface stats: received=0, sent=0, dropped=4, active_time=5 secs
            2024-03-07T02:38:45.000-05:00	check_reload_status[460]:	check_reload_status[460]: rc.newwanip starting ix3
            2024-03-07T02:38:45.000-05:00	charon[71782]:	charon[71782]: 10[KNL] 192.168.1.94 appeared on ix3
            2024-03-07T02:38:45.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
            2024-03-07T02:38:45.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[25149]: /sbin/route add -host 192.168.1.254 -iface ix3
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[23218]: Adding new routes to interface: ix3
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[22332]: New Routers (ix3): 192.168.1.254
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[20657]: New Broadcast Address (ix3): 192.168.1.255
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[19212]: New Subnet Mask (ix3): 255.255.255.0
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[17977]: New IP Address (ix3): 192.168.1.94
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[15786]: ifconfig ix3 inet 192.168.1.94 netmask 255.255.255.0 broadcast 192.168.1.255
            2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[8968]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
            2024-03-07T02:38:46.000-05:00	php-fpm[19319]:	php-fpm[19319]: /rc.newwanip: rc.newwanip: on (IP address: 192.168.1.94) (interface: WAN[wan]) (real interface: ix3).
            2024-03-07T02:38:46.000-05:00	php-fpm[19319]:	php-fpm[19319]: /rc.newwanip: rc.newwanip: Info: starting on ix3.
            2024-03-07T02:38:48.000-05:00	ntpd[86868]:	ntpd[86868]: Listen normally on 60 ix3 192.168.1.94:123
            2024-03-07T02:38:57.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
            2024-03-07T02:38:57.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:38:58.000-05:00	php-fpm[44338]:	php-fpm[44338]: /rc.newwanip: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
            2024-03-07T02:39:00.000-05:00	GAFW	GAFW dhclient[8968]: DHCPREQUEST on ix3 to 192.168.1.254 port 67
            

            Firewall: NetGate,Palo Alto-VM,Juniper SRX
            Routing: Juniper, Arista, Cisco
            Switching: Juniper, Arista, Cisco
            Wireless: Unifi, Aruba IAP
            JNCIP,CCNP Enterprise

            tinfoilmattT 1 Reply Last reply Reply Quote 0
            • M
              michmoor LAYER 8 Rebel Alliance
              last edited by

              Its highly likely that multiple scenrios are happening that are negatively impacting.
              Watchdog is no longer monitoring any service

              Its probable that something did occur that caused the firewall to be inaccessible from the LAN side and may be related to the watchdog process and restarting unbound. Suricata was never part of the watchdog daemon monitoring.

              That said, i will just have to wait to see if this happens again.
              I appreciate everyone chiming in on this one.

              Firewall: NetGate,Palo Alto-VM,Juniper SRX
              Routing: Juniper, Arista, Cisco
              Switching: Juniper, Arista, Cisco
              Wireless: Unifi, Aruba IAP
              JNCIP,CCNP Enterprise

              1 Reply Last reply Reply Quote 0
              • tinfoilmattT
                tinfoilmatt @michmoor
                last edited by

                @michmoor said in DNS/DHCP stop working suddenly:

                Based on the alerts from monitoring this problem started at 12:47am ET. Lets review what i could dig up in graylog.

                81b8d136-dcba-4d6f-9877-42e734f4556f-image.png

                Ping monitors to my WAN address also fail at this time. So the WAN address was not accessible.

                92280c32-03e6-4fa7-b7e1-2bf688cb5464-image.png

                During this time the filterlog still shows traffic inbound to my old IP so i am inferring that traffic was still making it into the firewall. In fact traffic continues to come inbound until 2:47:58am ET where there is a dhclient process starting which of course is the DHCP call out on the WAN.

                The link flaps a few times
                38ae9d8c-44fe-4c92-af52-451ce0ee018e-image.png

                Thats when things crap the bed and no more inbound flows

                timestamp	source	message
                2024-03-07T01:01:00.000-05:00	php-cgi[67141]:	php-cgi[67141]: rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:36:45.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
                2024-03-07T02:36:45.000-05:00	kernel:	kernel: ix3: link state changed to DOWN
                2024-03-07T02:36:45.000-05:00	GAFW	GAFW dhclient[32095]: ix3 link state up -> down
                2024-03-07T02:36:47.000-05:00	charon[71782]:	charon[71782]: 06[KNL] 162.193.210.96 disappeared from ix3
                2024-03-07T02:36:47.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Failed to get IP for interface ix3
                2024-03-07T02:36:47.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Cannot get IP address for ext interface ix3. Network is down
                2024-03-07T02:36:49.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
                2024-03-07T02:36:49.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:36:53.000-05:00	ntpd[86868]:	ntpd[86868]: Deleting interface #55 ix3, 162.193.210.96#123, interface stats: received=1173, sent=1257, dropped=0, active_time=127360 secs
                2024-03-07T02:36:55.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
                2024-03-07T02:36:55.000-05:00	kernel:	kernel: ix3: link state changed to UP
                2024-03-07T02:36:56.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:36:57.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:36:58.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:36:59.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:01.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:05.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:09.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
                2024-03-07T02:37:10.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
                2024-03-07T02:37:11.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 2
                2024-03-07T02:37:13.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 4
                2024-03-07T02:37:17.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 6
                2024-03-07T02:37:23.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 8
                2024-03-07T02:37:26.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
                2024-03-07T02:37:26.000-05:00	kernel:	kernel: ix3: link state changed to DOWN
                2024-03-07T02:37:26.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state up -> down
                2024-03-07T02:37:31.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 15
                2024-03-07T02:37:46.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 10
                2024-03-07T02:37:50.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
                2024-03-07T02:37:50.000-05:00	kernel:	kernel: ix3: link state changed to UP
                2024-03-07T02:37:50.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:50.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state down -> up
                2024-03-07T02:37:52.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:56.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
                2024-03-07T02:37:56.000-05:00	kernel:	kernel: ix3: link state changed to DOWN
                2024-03-07T02:37:56.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:56.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 10
                2024-03-07T02:37:56.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state up -> down
                2024-03-07T02:37:58.000-05:00	check_reload_status[460]:	check_reload_status[460]: Linkup starting ix3
                2024-03-07T02:37:58.000-05:00	kernel:	kernel: ix3: link state changed to UP
                2024-03-07T02:37:58.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:37:58.000-05:00	GAFW	GAFW dhclient[14415]: ix3 link state down -> up
                2024-03-07T02:37:59.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:00.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:01.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:03.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:06.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:06.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 7
                2024-03-07T02:38:13.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 9
                2024-03-07T02:38:17.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
                2024-03-07T02:38:18.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
                2024-03-07T02:38:19.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 1
                2024-03-07T02:38:20.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 2
                2024-03-07T02:38:22.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 2
                2024-03-07T02:38:24.000-05:00	GAFW	GAFW dhclient[14415]: DHCPDISCOVER on ix3 to 255.255.255.255 port 67 interval 3
                2024-03-07T02:38:26.000-05:00	check_reload_status[460]:	check_reload_status[460]: rc.newwanip starting ix3
                2024-03-07T02:38:26.000-05:00	charon[71782]:	charon[71782]: 01[KNL] 192.168.1.94 appeared on ix3
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[89711]: /sbin/route add -host 192.168.1.254 -iface ix3
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[87947]: Adding new routes to interface: ix3
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[87082]: New Routers (ix3): 192.168.1.254
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[86571]: New Broadcast Address (ix3): 192.168.1.255
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[85955]: New Subnet Mask (ix3): 255.255.255.0
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[85320]: New IP Address (ix3): 192.168.1.94
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[84415]: ifconfig ix3 inet 192.168.1.94 netmask 255.255.255.0 broadcast 192.168.1.255
                2024-03-07T02:38:26.000-05:00	GAFW	GAFW dhclient[14415]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:27.000-05:00	php-fpm[44338]:	php-fpm[44338]: /rc.newwanip: rc.newwanip: on (IP address: 192.168.1.94) (interface: WAN[wan]) (real interface: ix3).
                2024-03-07T02:38:27.000-05:00	php-fpm[44338]:	php-fpm[44338]: /rc.newwanip: rc.newwanip: Info: starting on ix3.
                2024-03-07T02:38:29.000-05:00	ntpd[86868]:	ntpd[86868]: Listen normally on 58 ix3 192.168.1.94:123
                2024-03-07T02:38:31.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Failed to get IP for interface ix3
                2024-03-07T02:38:31.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Cannot get IP address for ext interface ix3. Network is down
                2024-03-07T02:38:31.000-05:00	charon[71782]:	charon[71782]: 01[KNL] 192.168.1.94 disappeared from ix3
                2024-03-07T02:38:34.000-05:00	ntpd[86868]:	ntpd[86868]: Deleting interface #58 ix3, 192.168.1.94#123, interface stats: received=0, sent=0, dropped=4, active_time=5 secs
                2024-03-07T02:38:34.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
                2024-03-07T02:38:34.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:38:35.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
                2024-03-07T02:38:35.000-05:00	php-fpm[78999]:	php-fpm[78999]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:38:36.000-05:00	check_reload_status[460]:	check_reload_status[460]: rc.newwanip starting ix3
                2024-03-07T02:38:36.000-05:00	charon[71782]:	charon[71782]: 01[KNL] 192.168.1.94 appeared on ix3
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[42980]: /sbin/route add -host 192.168.1.254 -iface ix3
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[40764]: Adding new routes to interface: ix3
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[39766]: New Routers (ix3): 192.168.1.254
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[38095]: New Broadcast Address (ix3): 192.168.1.255
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[37026]: New Subnet Mask (ix3): 255.255.255.0
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[35894]: New IP Address (ix3): 192.168.1.94
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[34295]: ifconfig ix3 inet 192.168.1.94 netmask 255.255.255.0 broadcast 192.168.1.255
                2024-03-07T02:38:36.000-05:00	GAFW	GAFW dhclient[28646]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:37.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.newwanip: rc.newwanip: on (IP address: 192.168.1.94) (interface: WAN[wan]) (real interface: ix3).
                2024-03-07T02:38:37.000-05:00	php-fpm[5633]:	php-fpm[5633]: /rc.newwanip: rc.newwanip: Info: starting on ix3.
                2024-03-07T02:38:39.000-05:00	ntpd[86868]:	ntpd[86868]: Listen normally on 59 ix3 192.168.1.94:123
                2024-03-07T02:38:41.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Failed to get IP for interface ix3
                2024-03-07T02:38:41.000-05:00	miniupnpd[92455]:	miniupnpd[92455]: Cannot get IP address for ext interface ix3. Network is down
                2024-03-07T02:38:41.000-05:00	charon[71782]:	charon[71782]: 08[KNL] 192.168.1.94 disappeared from ix3
                2024-03-07T02:38:44.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
                2024-03-07T02:38:44.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:38:44.000-05:00	ntpd[86868]:	ntpd[86868]: Deleting interface #59 ix3, 192.168.1.94#123, interface stats: received=0, sent=0, dropped=4, active_time=5 secs
                2024-03-07T02:38:45.000-05:00	check_reload_status[460]:	check_reload_status[460]: rc.newwanip starting ix3
                2024-03-07T02:38:45.000-05:00	charon[71782]:	charon[71782]: 10[KNL] 192.168.1.94 appeared on ix3
                2024-03-07T02:38:45.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
                2024-03-07T02:38:45.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[25149]: /sbin/route add -host 192.168.1.254 -iface ix3
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[23218]: Adding new routes to interface: ix3
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[22332]: New Routers (ix3): 192.168.1.254
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[20657]: New Broadcast Address (ix3): 192.168.1.255
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[19212]: New Subnet Mask (ix3): 255.255.255.0
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[17977]: New IP Address (ix3): 192.168.1.94
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[15786]: ifconfig ix3 inet 192.168.1.94 netmask 255.255.255.0 broadcast 192.168.1.255
                2024-03-07T02:38:45.000-05:00	GAFW	GAFW dhclient[8968]: DHCPREQUEST on ix3 to 255.255.255.255 port 67
                2024-03-07T02:38:46.000-05:00	php-fpm[19319]:	php-fpm[19319]: /rc.newwanip: rc.newwanip: on (IP address: 192.168.1.94) (interface: WAN[wan]) (real interface: ix3).
                2024-03-07T02:38:46.000-05:00	php-fpm[19319]:	php-fpm[19319]: /rc.newwanip: rc.newwanip: Info: starting on ix3.
                2024-03-07T02:38:48.000-05:00	ntpd[86868]:	ntpd[86868]: Listen normally on 60 ix3 192.168.1.94:123
                2024-03-07T02:38:57.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com) There was an error trying to determine the public IP for interface - wan (ix3 ).
                2024-03-07T02:38:57.000-05:00	php-fpm[93379]:	php-fpm[93379]: /rc.dyndns.update: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:38:58.000-05:00	php-fpm[44338]:	php-fpm[44338]: /rc.newwanip: Dynamic DNS (vpn.networkingtitan.com): running get_failover_interface for wan. found ix3
                2024-03-07T02:39:00.000-05:00	GAFW	GAFW dhclient[8968]: DHCPREQUEST on ix3 to 192.168.1.254 port 67
                

                based on some of that timestamping and behavior, ISP maintenance seems within the realm of possibilites, too (if you haven't already confirmed or not with them).

                again, it's the outage that casues the cascade of restarts/retries/timeout-counters counting/etc., etc. disabling gateway monitoring action doesn't mean that other processes/services and packages won't still 'react' to a link going down.

                1 Reply Last reply Reply Quote 0
                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  Mmm, can you try a switch between the WAN and the modem so it never actually loses link?

                  1 Reply Last reply Reply Quote 0
                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Ok try running this from the console when it stops responding:

                    dtrace -n 'fbt::_task_fn_rx:entry' -n 'fbt::_task_fn_tx:entry' -n 'fbt::_task_fn_iov:entry' -n 'fbt::_task_fn_admin:entry' -n 'fbt::_task_fn_rx_watchdog:entry'
                    

                    One of those things is probably stuck and firing off numerous times.

                    M 1 Reply Last reply Reply Quote 1
                    • M
                      michmoor LAYER 8 Rebel Alliance @stephenw10
                      last edited by

                      @stephenw10
                      Got it. Lets hope it doesnt happen 😧

                      Firewall: NetGate,Palo Alto-VM,Juniper SRX
                      Routing: Juniper, Arista, Cisco
                      Switching: Juniper, Arista, Cisco
                      Wireless: Unifi, Aruba IAP
                      JNCIP,CCNP Enterprise

                      M 1 Reply Last reply Reply Quote 0
                      • M
                        michmoor LAYER 8 Rebel Alliance @michmoor
                        last edited by

                        @stephenw10
                        It happened again. Got the trace for you.

                         dtrace -n 'fbt::_task_fn_rx:entry' -n 'fbt::_task_fn_tx:entry' -n 'fbt::_task_fn_iov:entry' -n 'fbt::_task_fn_admin:entry' -n 'fbt::_task_fn_rx_watchdog:entry'
                        dtrace: description 'fbt::_task_fn_rx:entry' matched 1 probe
                        dtrace: description 'fbt::_task_fn_tx:entry' matched 1 probe
                        dtrace: description 'fbt::_task_fn_iov:entry' matched 1 probe
                        dtrace: description 'fbt::_task_fn_admin:entry' matched 1 probe
                        dtrace: description 'fbt::_task_fn_rx_watchdog:entry' matched 1 probe
                        CPU     ID                    FUNCTION:NAME
                          1  25031                _task_fn_rx:entry
                          1  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          1  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          3  25033                _task_fn_tx:entry
                          3  25033                _task_fn_tx:entry
                          3  25031                _task_fn_rx:entry
                          3  25033                _task_fn_tx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          1  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          1  25031                _task_fn_rx:entry
                          1  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          1  25033                _task_fn_tx:entry
                          1  25033                _task_fn_tx:entry
                          1  25033                _task_fn_tx:entry
                          1  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          2  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          1  25031                _task_fn_rx:entry
                          1  25031                _task_fn_rx:entry
                          3  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          1  25031                _task_fn_rx:entry
                          1  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          2  25033                _task_fn_tx:entry
                          2  25031                _task_fn_rx:entry
                          1  25033                _task_fn_tx:entry
                          2  25033                _task_fn_tx:entry
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                        dtrace: processing aborted: Abort due to systemic unresponsiveness
                        
                        

                        Firewall: NetGate,Palo Alto-VM,Juniper SRX
                        Routing: Juniper, Arista, Cisco
                        Switching: Juniper, Arista, Cisco
                        Wireless: Unifi, Aruba IAP
                        JNCIP,CCNP Enterprise

                        M 1 Reply Last reply Reply Quote 0
                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          Hmm, I'll point that at out devs but as I understand it that's the normal output. 🤔

                          1 Reply Last reply Reply Quote 0
                          • M
                            michmoor LAYER 8 Rebel Alliance @michmoor
                            last edited by michmoor

                            @stephenw10
                            Thanks. Seeing how the dtrace stopped no more than 15s into it due to the high load.."dtrace: processing aborted: Abort due to systemic unresponsiveness"

                            Let me know what you hear back and what further traces i can run.
                            Watch it be something so ridiculous..

                            edit: checked syslogs afterward. Nothing out of the ordinary was happening. Anything related to ix3 (WAN) previously did not show up here. I was not home at the time so this was just a spontaneous event without me logging in or performing any administrative action.

                            Firewall: NetGate,Palo Alto-VM,Juniper SRX
                            Routing: Juniper, Arista, Cisco
                            Switching: Juniper, Arista, Cisco
                            Wireless: Unifi, Aruba IAP
                            JNCIP,CCNP Enterprise

                            stephenw10S 1 Reply Last reply Reply Quote 0
                            • M
                              michmoor LAYER 8 Rebel Alliance
                              last edited by

                              @stephenw10
                              Happened again a few hours later.

                              Only difference is that kernel{if_io_tqg_3}] is now kernel{if_io_tqg_0}]

                              dtrace was the same and stopped abruptly.

                              Firewall: NetGate,Palo Alto-VM,Juniper SRX
                              Routing: Juniper, Arista, Cisco
                              Switching: Juniper, Arista, Cisco
                              Wireless: Unifi, Aruba IAP
                              JNCIP,CCNP Enterprise

                              ? 1 Reply Last reply Reply Quote 0
                              • ?
                                A Former User @michmoor
                                last edited by

                                @michmoor

                                You may have an ISP line problem. Something like that happened to me about a year ago. It turned out that the old external coax line was really bad. pfSense did not handle those short and frequent outages too well. My old ASUS router was better at it. Initially I thought that my new NETGATE box was failing completely, but no. It was actually working but very, very slowly. It was taking 3-4 minutes to log into the Web UI and the Internet download speed was 2-3 Mb/s. I think I would be a good idea to check the internal Internet line first and, if that’s fine, ask the ISP to check the external line.

                                1 Reply Last reply Reply Quote 2
                                • stephenw10S
                                  stephenw10 Netgate Administrator @michmoor
                                  last edited by

                                  @michmoor said in DNS/DHCP stop working suddenly:

                                  Seeing how the dtrace stopped no more than 15s into it due to the high load.."dtrace: processing aborted: Abort due to systemic unresponsiveness"

                                  Ah sorry I completely missed that. That's obviously not normal!

                                  Seeing the load on a different task queue is probably just coincidence.

                                  M 1 Reply Last reply Reply Quote 0
                                  • M
                                    michmoor LAYER 8 Rebel Alliance @stephenw10
                                    last edited by

                                    @stephenw10
                                    Could we be looking at something corrupted in the firmware? Would a re-install be a pathway here to resolving this?

                                    Firewall: NetGate,Palo Alto-VM,Juniper SRX
                                    Routing: Juniper, Arista, Cisco
                                    Switching: Juniper, Arista, Cisco
                                    Wireless: Unifi, Aruba IAP
                                    JNCIP,CCNP Enterprise

                                    1 Reply Last reply Reply Quote 0
                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      You could try that but it doesn't look like that to me. A damaged filesystem would almost certainly fail immediately.

                                      M 1 Reply Last reply Reply Quote 1
                                      • M
                                        michmoor LAYER 8 Rebel Alliance @stephenw10
                                        last edited by michmoor

                                        @stephenw10
                                        Incident just happened about an hour ago.
                                        Ive checked each interface and there was no sudden sharp increase in bandwidth so this doesn't seem to be traffic-related.

                                        564b9d93-454b-4c8f-84a1-9f89d9d8be55-image.png

                                        I think....I may have found something very interesting and to your point traffic related....
                                        Restricted vlan is time based. It is not available yet.... that's a lot of packets being processed? how?

                                        88cb4a25-a9d2-4c99-a597-647d6e121efc-image.png

                                        Assuming the RRD graphs are accurate in terms of counting, the Restricted VLAN is the only vlan with millions of packets being recorded even compared to the WAN which doesn't register that many packets.

                                        7d3186d9-54fb-403e-bd57-881787963d8b-image.png

                                        Firewall: NetGate,Palo Alto-VM,Juniper SRX
                                        Routing: Juniper, Arista, Cisco
                                        Switching: Juniper, Arista, Cisco
                                        Wireless: Unifi, Aruba IAP
                                        JNCIP,CCNP Enterprise

                                        1 Reply Last reply Reply Quote 0
                                        • stephenw10S
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          Hmm, I think that's actually milli-packets per second not millions. Compared to the in-block value it's very low on the graph.

                                          M 1 Reply Last reply Reply Quote 0
                                          • M
                                            michmoor LAYER 8 Rebel Alliance @stephenw10
                                            last edited by

                                            Update

                                            Moving the WAN connection from IX3 to IX1 i continued to have the firewall lock up.
                                            Moving the internet connectivity to the igc* interface seems to have resolved the issue. pfSense has remained stable with no lockups.
                                            IX and IGC are different nics on the 6100.
                                            At first, this may seem like perhaps a failing ix* nic card. That's what i thought. Why else does everything work great on the igc nics?
                                            As a test, i found another PC and connected it directly to ix3. Ran a series of speedtests daily. pfSense hasnt locked up at all.

                                            The physical connectivity had the ATT Cable modem directly attached to ix3. No patch panel, no switch. The connectivity today is the same except its directly connected to an igc interface.
                                            The only conclusion that i can reach is that for some odd reason, there is something strange taking place on the wire between the modem and pfsense ix* interface which causes the system to freak out and lock up. The cable modem is directly connected to igc* and its normal operation.

                                            I cant explain this odd behavior. I appreciate everyones input. @stephenw10 appreciate the additional assistance out of band..

                                            Firewall: NetGate,Palo Alto-VM,Juniper SRX
                                            Routing: Juniper, Arista, Cisco
                                            Switching: Juniper, Arista, Cisco
                                            Wireless: Unifi, Aruba IAP
                                            JNCIP,CCNP Enterprise

                                            1 Reply Last reply Reply Quote 0
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