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Archive => 23.7 Legacy Series => Topic started by: Saarbremer on October 04, 2023, 12:11:02 PM

Title: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: Saarbremer on October 04, 2023, 12:11:02 PM
Hi,

I observed some unexpected behaviour in dpinger / OPNsense's handling of dpinger tonight. At least to me it is unexpected, so correct me if I am wrong.

Status:
OPNSense 23.7.5-amd64 on Zotac's ZBOX with 2x 1 GBits Realteak NICs and os-realteak-re installed. Works stable for more than 4 years. WAN on re0 (no VLAN) is directly connected to a Mikrotik router provided from the ISP, so I don't have access to it.

Event:
Due to a reboot of the mikrotik there was an IF DOWN/UP at 04:19:16 - 04:19-26 and again at 04:19:45 - 04:19:49.

Observation:
1. OPNSense detected IF events and reacted accordingly. See system.log below.
2. DPinger noticed that it failed and was restarted twice. When I checked the system this morning at 10:00 I saw that dpinger for IPv6 was down - so was the gateway as shown in OPNSense's dashboard. I triggered a start of dpinger for the IPv6 gateway on the dashboard and it started successfully. The gateway became online and IPv6 was working again.

My expectation:
I would have expected dpinger for IPv6 to resume to normal operation after the incident and not to remain in STOPPED state.

Is this really intended behaviour or do I have to adjust some options for gateway monitoring?


gateways.log for the affected time:

2023-10-04T10:01:43   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr 2a00:xxxx:xxxx:xx::1  bind_addr 2a00:xxxx:xxxx:xx::2  identifier "ISP_WAN_GWv6 "
2023-10-04T04:19:50   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr xx.xx.148.97  bind_addr xx.xx.148.98  identifier "ISP_WAN_GWv4 "
2023-10-04T04:19:50   Warning   dpinger    exiting on signal 15
2023-10-04T04:19:49   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:48   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:47   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:46   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:45   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:44   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:43   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:42   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:41   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:40   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:39   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:38   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:37   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:36   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:35   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:34   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:33   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:32   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-04T04:19:27   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr xx.xx.148.97  bind_addr xx.xx.148.98  identifier "ISP_WAN_GWv4 "
2023-10-04T04:19:27   Warning   dpinger    exiting on signal 15
2023-10-04T04:19:26   Warning   dpinger    exiting on signal 15
2023-10-04T04:19:26   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 55
2023-10-04T04:19:25   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:25   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:24   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:24   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:23   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:23   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:22   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:22   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:21   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:21   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:20   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:20   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:19   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:19   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:18   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:18   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T04:19:17   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-04T04:19:17   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-09-28T08:56:32   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr xx.xx.148.97  bind_addr xx.xx.148.98  identifier "ISP_WAN_GWv4 "
2023-09-28T08:56:32   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr 2a00:xxxx:xxxx:xx::1  bind_addr 2a00:xxxx:xxxx:xx::2  identifier "ISP_WAN_GWv6 "


system.log for the affected time

2023-10-04T04:20:15   Warning   opnsense    /usr/local/etc/rc.linkup: warning: ignoring missing default tunable request: debug.pfftpproxy
2023-10-04T04:20:14   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dns (execute task : unbound_configure_do())
2023-10-04T04:20:14   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dns (execute task : dnsmasq_configure_do())
2023-10-04T04:20:14   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dns ()
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dhcp (execute task : dhcpd_dhcp_configure())
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dhcp ()
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure ipsec (execute task : ipsec_configure_do(,wan))
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure ipsec (,wan)
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (execute task : dpinger_configure_do(,ISP_WAN_GWv4))
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (,ISP_WAN_GWv4)
2023-10-04T04:19:50   Warning   opnsense    /usr/local/etc/rc.linkup: The required ISP_WAN_GWv6 IPv6 interface address could not be found, skipping.
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (execute task : dpinger_configure_do(,ISP_WAN_GWv6))
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (,ISP_WAN_GWv6)
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: keeping inet6 default route to 2a00:xxxx:xxxx:xx::1
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: configuring inet6 default gateway on wan
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: setting inet default route to xx.xx.148.97
2023-10-04T04:19:50   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: configuring inet default gateway on wan
2023-10-04T04:19:49   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: entering configure using 'wan'
2023-10-04T04:19:49   Notice   opnsense    /usr/local/etc/rc.linkup: DEVD: Ethernet attached event for wan(re0)
2023-10-04T04:19:49   Notice   kernel    <6>re0: link state changed to UP
2023-10-04T04:19:46   Notice   opnsense    /usr/local/etc/rc.linkup: DEVD: Ethernet detached event for wan(re0)
2023-10-04T04:19:45   Notice   kernel    <6>re0: link state changed to DOWN
2023-10-04T04:19:32   Warning   opnsense    /usr/local/etc/rc.linkup: warning: ignoring missing default tunable request: debug.pfftpproxy
2023-10-04T04:19:32   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dns (execute task : unbound_configure_do())
2023-10-04T04:19:32   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dns (execute task : dnsmasq_configure_do())
2023-10-04T04:19:32   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dns ()
2023-10-04T04:19:27   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dhcp (execute task : dhcpd_dhcp_configure())
2023-10-04T04:19:27   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure dhcp ()
2023-10-04T04:19:27   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure ipsec (execute task : ipsec_configure_do(,wan))
2023-10-04T04:19:27   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure ipsec (,wan)
2023-10-04T04:19:27   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (execute task : dpinger_configure_do(,ISP_WAN_GWv4))
2023-10-04T04:19:27   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (,ISP_WAN_GWv4)
2023-10-04T04:19:27   Warning   opnsense    /usr/local/etc/rc.linkup: The required ISP_WAN_GWv6 IPv6 interface address could not be found, skipping.
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (execute task : dpinger_configure_do(,ISP_WAN_GWv6))
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: plugins_configure monitor (,ISP_WAN_GWv6)
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: keeping inet6 default route to 2a00:xxxx:xxxx:xx::1
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: configuring inet6 default gateway on wan
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: setting inet default route to xx.xx.148.97
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: configuring inet default gateway on wan
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: ROUTING: entering configure using 'wan'
2023-10-04T04:19:26   Notice   opnsense    /usr/local/etc/rc.linkup: DEVD: Ethernet attached event for wan(re0)
2023-10-04T04:19:26   Notice   kernel    <6>re0: link state changed to UP
2023-10-04T04:19:17   Notice   opnsense    /usr/local/etc/rc.linkup: DEVD: Ethernet detached event for wan(re0)
2023-10-04T04:19:16   Notice   kernel    <6>re0: link state changed to DOWN




Title: Re: dpinger behaviour after WAN IF down
Post by: Saarbremer on October 05, 2023, 10:20:48 AM
Tonight the same happened again and - as yesterday - dpinger for IPv6 did not come up again. Incident happened at 2023-10-05T03:10:36.

I will try to reproduce this in an easier way and file a bug.

2023-10-05T03:11:04   Notice   dpinger    MONITOR: ISP_WAN_GWv4 (Addr: xx.xx.148.97 Alarm: down -> none RTT: 0.3 ms RTTd: 0.0 ms Loss: 0.0 %)
2023-10-05T03:11:03   Notice   dpinger    Reloaded gateway watcher configuration on SIGHUP
2023-10-05T03:11:03   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr xx.xx.148.97  bind_addr xx.xx.148.98  identifier "ISP_WAN_GWv4 "
2023-10-05T03:11:03   Notice   dpinger    Reloaded gateway watcher configuration on SIGHUP
2023-10-05T03:11:03   Warning   dpinger    exiting on signal 15
2023-10-05T03:11:02   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:11:01   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:11:00   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:10:59   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 50
2023-10-05T03:10:58   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:57   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:56   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:55   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:54   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:53   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:52   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:51   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:50   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:49   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:48   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:47   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 64
2023-10-05T03:10:46   Notice   dpinger    MONITOR: ISP_WAN_GWv4 (Addr: xx.xx.148.97 Alarm: none -> down RTT: 0.0 ms RTTd: 0.0 ms Loss: 100.0 %)
2023-10-05T03:10:42   Notice   dpinger    Reloaded gateway watcher configuration on SIGHUP
2023-10-05T03:10:42   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr xx.xx.148.97  bind_addr xx.xx.148.98  identifier "ISP_WAN_GWv4 "
2023-10-05T03:10:42   Notice   dpinger    Reloaded gateway watcher configuration on SIGHUP
2023-10-05T03:10:42   Warning   dpinger    exiting on signal 15
2023-10-05T03:10:42   Warning   dpinger    exiting on signal 15
2023-10-05T03:10:41   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 55
2023-10-05T03:10:41   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:10:40   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-05T03:10:40   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:10:39   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-05T03:10:39   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:10:38   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-05T03:10:38   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:10:37   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-05T03:10:37   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 65
2023-10-05T03:10:36   Warning   dpinger    ISP_WAN_GWv4 xx.xx.148.97: sendto error: 50
2023-10-05T03:10:36   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 50
2023-10-04T15:05:37   Warning   dpinger    ISP_WAN_GWv6 2a00:xxxx:xxxx:xx::1: sendto error: 55
2023-10-04T10:01:44   Notice   dpinger    MONITOR: ISP_WAN_GWv6 (Addr: 2a00:xxxx:xxxx:xx::1 Alarm: loss -> none RTT: 0.2 ms RTTd: 0.0 ms Loss: 0.0 %)
2023-10-04T10:01:43   Notice   dpinger    Reloaded gateway watcher configuration on SIGHUP
2023-10-04T10:01:43   Warning   dpinger    send_interval 1000ms  loss_interval 4000ms  time_period 60000ms  report_interval 0ms  data_len 0  alert_interval 1000ms  latency_alarm 0ms  loss_alarm 0%  alarm_hold 10000ms  dest_addr 2a00:xxxx:xxxx:xx::1  bind_addr 2a00:xxxx:xxxx:xx::2  identifier "ISP_WAN_GWv6 "
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: Saarbremer on October 05, 2023, 11:03:37 AM
Problem persists. Bug report here: https://github.com/opnsense/core/issues/6913
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: franco on October 18, 2023, 09:22:56 AM
The issue was solved: we are going to disable DAD for interfaces with static IPv6 addressing. The fix will be in 23.7.7.


Cheers,
Franco
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: Saarbremer on October 18, 2023, 02:49:55 PM
Thanks!
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: franco on October 18, 2023, 03:14:57 PM
I just tested the backport and it should do what it promised:

https://github.com/opnsense/core/commit/3c46b33a3e

# opnsense-patch 3c46b33a3e
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: bulmaro on October 19, 2023, 03:19:39 AM
today I updated my version, I still have a multi wan problem, the main gateway is not activated, apply this patch
# opnsense-patch 3c46b33a3e
the problem continues

Gateways: Log File

2023-10-18T19:20:05-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:04-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:03-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:02-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:01-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:00-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:19:59-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:19:58-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: Seimus on October 19, 2023, 09:21:22 AM
Quote from: bulmaro on October 19, 2023, 03:19:39 AM
today I updated my version, I still have a multi wan problem, the main gateway is not activated, apply this patch
# opnsense-patch 3c46b33a3e
the problem continues

Gateways: Log File

2023-10-18T19:20:05-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:04-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:03-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:02-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:01-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:20:00-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:19:59-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64   
2023-10-18T19:19:58-06:00   Warning   dpinger   WAN_DHCP 1.1.1.1: sendto error: 64

Also why are you monitoring an ANYCAST IP? The cloudflare DNS 1.1.1.1 as its an ANYCAST IP/NETWORK will be reachable always if at least one of its resolver is UP.

Wouldn't be better if you ping the GW of your ISP? Or an UNICAST BASED IP that is closer to you?

Regards,
S.
Title: Re: dpinger behaviour after WAN IF down [SOLVED - bug filed]
Post by: franco on October 19, 2023, 10:12:05 AM
The distinct error where this bugfix comes to the rescue is:

2023-10-04T04:19:27   Warning   opnsense    /usr/local/etc/rc.linkup: The required ISP_WAN_GWv6 IPv6 interface address could not be found, skipping.

It wasn't meant to fix anything else.


Cheers,
Franco
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