Interfaces randomly go down/unroutable

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n1nja:
I have this issue where every so often (a bit on the spontaneous side, unfortunately) I lose internet. I can't ping my IPv4 LAN facing gateway. I can't ping my management port (which I created for troubleshooting this problem). Looking at /var/log/system.log, I see this:

--- Code: ---Nov 26 13:08:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67
Nov 26 13:08:27 OPNsense dhclient[46336]: DHCPACK from 208.110.116.101
Nov 26 13:08:27 OPNsense dhclient[52573]: Creating resolv.conf
Nov 26 13:08:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.
Nov 26 13:13:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67
Nov 26 13:13:27 OPNsense dhclient[46336]: DHCPACK from 208.110.116.101
Nov 26 13:13:27 OPNsense dhclient[88047]: Creating resolv.conf
Nov 26 13:13:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.
Nov 26 13:16:00 OPNsense root[28797]: reload filter for configured schedules
Nov 26 13:18:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67
Nov 26 13:18:27 OPNsense dhclient[46336]: DHCPACK from 208.110.116.101
Nov 26 13:18:27 OPNsense dhclient[87230]: Creating resolv.conf
Nov 26 13:18:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.
Nov 26 13:23:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67
Nov 26 13:23:27 OPNsense dhclient[46336]: DHCPACK from 208.110.116.101
Nov 26 13:23:27 OPNsense dhclient[74715]: Creating resolv.conf
Nov 26 13:23:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.
Nov 26 13:28:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67
Nov 26 13:28:27 OPNsense dhclient[46336]: DHCPACK from 208.110.116.101
Nov 26 13:28:27 OPNsense dhclient[65189]: Creating resolv.conf
Nov 26 13:28:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.
Nov 26 13:31:00 OPNsense root[30800]: reload filter for configured schedules
Nov 26 13:33:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67
Nov 26 13:33:27 OPNsense dhclient[46336]: DHCPACK from 208.110.116.101
Nov 26 13:33:27 OPNsense dhclient[84129]: Creating resolv.conf
Nov 26 13:33:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.
Nov 26 13:33:32 OPNsense kernel: em1: link state changed to DOWN
Nov 26 13:33:32 OPNsense kernel: em1_vlan35: link state changed to DOWN
Nov 26 13:33:32 OPNsense kernel: em1_vlan10: link state changed to DOWN
Nov 26 13:33:32 OPNsense kernel: em1_vlan30: link state changed to DOWN
Nov 26 13:33:32 OPNsense kernel: em2: link state changed to DOWN
Nov 26 13:33:32 OPNsense opnsense[93736]: /usr/local/etc/rc.linkup: DEVD Ethernet detached event for lan
Nov 26 13:33:33 OPNsense opnsense[63600]: /usr/local/etc/rc.linkup: Hotplug event detected for Ooma(opt2) but ignoring since interface is configured with static IP (10.35.0.254 ::)
Nov 26 13:33:33 OPNsense opnsense[75016]: /usr/local/etc/rc.linkup: Hotplug event detected for WirelessGuest(opt3) but ignoring since interface is configured with static IP (10.10.0.254 ::)
Nov 26 13:33:34 OPNsense opnsense[80883]: /usr/local/etc/rc.linkup: Hotplug event detected for WirelessTrust(opt1) but ignoring since interface is configured with static IP (10.30.0.254 ::)
Nov 26 13:33:34 OPNsense opnsense[91909]: /usr/local/etc/rc.linkup: Hotplug event detected for MGMT(opt6) but ignoring since interface is configured with static IP (10.255.255.254 ::)
Nov 26 13:36:03 OPNsense kernel: em1: link state changed to UP
Nov 26 13:36:03 OPNsense kernel: em1_vlan35: link state changed to UP
Nov 26 13:36:03 OPNsense kernel: em1_vlan10: link state changed to UP
Nov 26 13:36:03 OPNsense kernel: em1_vlan30: link state changed to UP
Nov 26 13:36:03 OPNsense opnsense[52126]: /usr/local/etc/rc.linkup: DEVD Ethernet attached event for lan
Nov 26 13:36:03 OPNsense opnsense[52126]: /usr/local/etc/rc.linkup: HOTPLUG: Configuring interface lan
Nov 26 13:36:03 OPNsense opnsense[52126]: /usr/local/etc/rc.linkup: ROUTING: entering configure using 'lan'
Nov 26 13:36:03 OPNsense kernel: em2: link state changed to UP
Nov 26 13:36:03 OPNsense opnsense[52126]: /usr/local/etc/rc.linkup: ROUTING: IPv4 default gateway set to wan
Nov 26 13:36:03 OPNsense opnsense[52126]: /usr/local/etc/rc.linkup: ROUTING: skipping IPv4 default route
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure ipsec (,lan)
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure ipsec (execute task : ipsec_configure_do(,lan))
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure dhcp ()
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure dhcp (execute task : dhcpd_dhcp_configure())
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure dns ()
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure dns (execute task : dnsmasq_configure_do())
Nov 26 13:36:03 OPNsense opnsense[52126]: plugins_configure dns (execute task : unbound_configure_do())
Nov 26 13:36:06 OPNsense opnsense[191]: /usr/local/etc/rc.linkup: Hotplug event detected for Ooma(opt2) but ignoring since interface is configured with static IP (10.35.0.254 ::)
Nov 26 13:36:06 OPNsense opnsense[6297]: /usr/local/etc/rc.newwanip: IPv4 renewal is starting on 'em1_vlan35'

--- End code ---

I found another forum post that says marking their interface as the gateway solved their problem, but mines already set this way.

For now I've disabled gateway monitoring to see if it makes any difference, but I'm not sure why I'd lose my LAN facing stuff in this case.

alexroz:
Same here after upgrade to 21.7.6.
Thinking of rolling back to previous version.

alexroz:
Don't now what exactly the problem was....
But rolling back to 21.7.5 from a console resolved the issue.

--- Code: ---opnsense-revert -r 21.7.5 opnsense
--- End code ---
https://docs.opnsense.org/manual/opnsense_tools.html#opnsense-revert
So far so good....

4Saken:
Hey guys, just reading up on this. I just reverted to. Been having issues with interfaces this way to, after upgrading to 21.7.6.

Did you guys perhaps have suricata running on those interfaces? My issues seem to be resolved when i disable suricata or taking the interface out of the config.

I was experiencing this on the lan side btw, since i dont have suricata on wan side. My lagg interface seems to be doing just fine with suricata enabled.
Sidenote: rss enabled. intel i210.

I suspect this issue to have something to do with.
Suricata 6.0.4 with an additional change for the Netmap API version 14. not sure :-X

franco:
Hello confirmation bias, my old friend...

I don't see any hints in the release notes and also can't recall anything that drastic. Reverting 21.7.5 core package obviously would leave newer Suricata in place so it's not that specifically or the newer ET rulesets give you trouble (easy enough to test if enough info was given).

What seems like a joke is:

Nov 26 13:08:27 OPNsense dhclient[46336]: bound to 208.110.116.102 -- renewal in 300 seconds.

300 seconds is 5 minutes... then...

Nov 26 13:13:27 OPNsense dhclient[46336]: DHCPREQUEST on em0 to 208.110.116.101 port 67

That is EXACTLY 5 minutes later so I am unsure how this is thought to be not what it should be?

I get that something doesn't work, but the report doesn't say and jumps to conclusions. Never a good combo.

Cheers,
Franco

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