Messages

Danke.

Ich habe heute noch eine lange Trennung (über ein Stunde) versucht, und siehe da, danach hatte ich auch wieder IPv6-Konnektivität.

Und zwar mit und ohne "Request prefix only".

Ich bedanke mich ganz herzlich für eure Unterstützung!

Danke.

Ich habe das mit dem Request Prefix only gemacht, das Interface neu gestartet, und eine Stunde gewartet, jedoch ohne Erfolg.

Seitens DG habe ich nichts ändern lassen ("eigener Router"). Das Setup lief seit zwei Jahren durch mit IPv6-Adresse auf dem WAN-Interface.

Tja, geht nicht... :-(

Habe das Genexis vom Strom genommen und wieder verbunden. Die OpnSense bekommt dann gleich wieder eine IPv4-Adresse auf dem WAN-Interface igb9, bettelt aber regelmäßig um eine IPv6-Adresse. Auch nach 30 Minuten kein Erfolg, auch nicht nach mehrmaligen Reload im GUI.

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ifctl -6pi igb9 zeigt nichts.

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ifconfig igb9 zeigt

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igb9: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
        description: WAN (wan)
        options=48500b8<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,VLAN_HWTSO,HWSTATS,MEXTPG>
        ether 7c:5a:1c:57:15:05
        inet 100.84.160.102 netmask 0xffff0000 broadcast 100.84.255.255
        inet6 fe80::7e5a:1cff:fe57:1505%igb9 prefixlen 64 scopeid 0xa
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
So schaut es im Log aus:

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2026-04-26T19:40:56 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:39:39 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:39:02 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:38:43 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:38:34 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:38:29 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:38:27 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:38:26 Notice dhcp6c Sending Solicit on igb9
2026-04-26T19:38:26 Notice dhcp6c restarting
2026-04-26T19:38:26 Notice dhcp6c rtsold_script: reloading dhcp6c
2026-04-26T19:38:21 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : wireguard_sync())
2026-04-26T19:38:21 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : webgui_configure_do(,[wan]))
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : vxlan_configure_do())
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : unbound_configure_do(,[wan]))
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : openssh_configure_do(,[wan]))
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : opendns_configure_do())
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure newwanip:rfc2136 (1,[wan])
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : ntpd_configure_do())
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (execute task : dhcrelay_configure_if(,[wan],inet))
2026-04-26T19:38:20 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure newwanip (,[wan],inet)
2026-04-26T19:38:19 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure vpn (execute task : wireguard_configure_do())
2026-04-26T19:38:19 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure vpn (execute task : openvpn_configure_do(,[wan]))
2026-04-26T19:38:19 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure vpn (execute task : ipsec_configure_do(,[wan]))
2026-04-26T19:38:19 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure vpn (,[wan],inet)
2026-04-26T19:38:18 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure dns (execute task : unbound_configure_do(1))
2026-04-26T19:38:18 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure dns (execute task : dnsmasq_configure_do(1))
2026-04-26T19:38:18 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure dns (1)
2026-04-26T19:38:18 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure dhcp (execute task : radvd_configure_dhcp(1))
2026-04-26T19:38:18 Warning opnsense /usr/local/etc/rc.configure_interface: dhcpd_dhcp6_configure() found no suitable IPv6 address on lan(bridge0)
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure monitor (execute task : dpinger_configure_do(,[WAN_DHCP,UDM]))
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.newwanip: plugins_configure monitor (,[WAN_DHCP,UDM])
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.newwanip: ROUTING: setting inet default route to 100.84.0.1
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.newwanip: ROUTING: configuring inet default gateway on wan
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.newwanip: ROUTING: setting inet interface route to 10.21.1.1 via igb9
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure dhcp (execute task : dhcpd_dhcp_configure(1))
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure dhcp (1)
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure ipsec (execute task : ipsec_configure_do(1,wan))
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure ipsec (1,wan)
2026-04-26T19:38:17 Warning opnsense /usr/local/etc/rc.configure_interface: The required WAN_DHCP6 IPv6 interface address could not be found, skipping.
2026-04-26T19:38:17 Warning opnsense /usr/local/etc/rc.configure_interface: Skipping gateway WAN_DHCP6 due to empty 'gateway' property.
2026-04-26T19:38:17 Warning opnsense /usr/local/etc/rc.configure_interface: Skipping gateway WAN_DHCP6 due to empty 'monitor' property.
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.newwanip: ROUTING: entering configure using wan
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure monitor (execute task : dpinger_configure_do(1,[WAN_DHCP6,WAN_DHCP,UDM]))
2026-04-26T19:38:17 Notice opnsense /usr/local/etc/rc.configure_interface: plugins_configure monitor (1,[WAN_DHCP6,WAN_DHCP,UDM])
2026-04-26T19:38:17 Error opnsense /usr/local/etc/rc.configure_interface: ROUTING: refusing to set inet gateway on addressless wan(igb9)
2026-04-26T19:38:17 Warning opnsense /usr/local/etc/rc.configure_interface: ROUTING: refusing to set interface route on addressless wan(igb9)
2026-04-26T19:38:17 Warning opnsense /usr/local/etc/rc.configure_interface: ROUTING: refusing to set interface route on addressless wan(igb9)
2026-04-26T19:38:16 Notice opnsense /usr/local/etc/rc.newwanip: IP renewal starting (new: 100.84.160.102, old: 100.84.160.102, interface: wan, device: igb9, force: yes)
"Skipping gateway WAN_DHCP6" sieht verdächtig aus.

Danke Schnipp!

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Ich mache das mit dem Neustart des Medienwandlers/Modems, wenn ich am Wochenende wieder physischen Zugriff auf den Anschluss habe.

Hallo,

ich denke, dass es nach dem Update auf Version 26.1 (von 25.7?) passiert ist (aktuell: 26.1.6): mein Interface WAN_DHCP6 bezieht keine IPv6-Adresse mehr (Provider: Deutsche Glasfaser Dual Stack IPv4/IPv6).

Die Option "Use IPv4 connectivity" ist weggefallen, aber sie scheint nun der Standard zu sein. Einstellungen zum WAN-Interface anbei. Keine Änderungen vorgenommen.

Die OPNSense-Firewall ist per Kupferport igb9 mit dem Genexis-Medienwandler verbunden. IPv4-Konnektivität besteht, WAN_DHCP eine eine IPv4-Adresse. Im Log sehe ich regelmäßig vergebliche Versuche von

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2026-04-21T20:17:01 Notice dhcp6c Sending Solicit on igb9
Debug logging ist angeschaltet bei Interfaces:Logging, aber keine Debug-Meldungen im Log zu sehen.

Liegt es am Provider oder an OPNSense? Ich habe etwas davon gelesen, das Parent Interface zu setzen, aber finde keine passende Einstellung.

Wer kann mir bitte helfen?

Viele Grüße
Boris

Hi,

I run OPNSense 24.7.6. Last evening, IPv4 network connectivity broke. Restarting all services from the console menu did not help. A reboot was required.

This is what the General Log reveals:

Every 30 minutes, dhcp6c logs dhcp6c_script: RENEW on igb0 executing. igb0 is the WAN interface. Then, suddenly, radvd reports about 17 minutes later: sendmsg: No buffer space available. This message repeats every 5 seconds.

Pinging the LAN interface via IPv4(!) does not work. Neither can I reach any host on the LAN from OPNSense.

Only rebooting OPNSense brings operations back to normal. I had this once before with the previous version.

There are several reports of this issue in the forum but with little to no response nor solution. I am willing to contribute logs, configuration etc. to help solving the issue.

Kind regards,
Boris

I found the answer myself.

The MGMT port is connected to the board´s BMC and thus cannot appear as a network interface under OPNSense.

Here is the link to guide other people who come across the same topic: https://support.sophos.com/support/s/article/KBA-000009496?language=en_US

I must have enabled tmpfs for logging years ago to reduce the wearout on the SSD. I have disabled it under System | Settings | Miscellaneous. It requires a reboot, though, to become effective.

It just dawned to me: /var/log is on tmpfs and does not survive a power off/power on cycle.

Actually, they are not there. That's why I am asking. What you showed is what I expected but the directory only contains the current log file:

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# ls -la /var/log/system/
total 61
drwx------   2 root wheel   128 Aug 22 14:01 .
drwxr-xr-x  12 root wheel   960 Aug 22 13:10 ..
lrwxr-x---   1 root wheel    35 Aug 22 14:01 latest.log -> /var/log/system/system_20240822.log
-rw-------   1 root wheel 61245 Aug 22 13:35 system_20240822.log

Dear all,

it randomly occurs that my OPNSense is suddenly not reachable any more. I am currently (still) on OPNsense 24.7.1-amd64 but had these issues say once every quarter for long.

It just occured ten minutes ago. I had to power the device down and back on. I read the thread with the same subject from today but it did not help. There is only the latest log showing entries since the last boot at 13:03 in /var/log/system. What I need are the logs from the previous run. Where have they gone? System | Settings | Logging, Tab "Local" is set to keep 31 log files.

Any help would be appreciated.

Best regards,
Boris

Hi,

I bought a used SOPHOS SG 430 Firewall Appliance and replaced the SOPHOS operating system by OPNSense 24.1. This runs all fine, including the LCD.

But I cannot use the MGMT ethernet port. It does not appear in the devices list (dmesg) and I also cannot access it via its default IP address 10.0.1.1 (https://10.0.1.1:4444). I did not find a mentioning of the management port in the web other than on the SOPHOS help page.

Any hints?

Kind regards
Boris

Thank you Franco, that worked.

I suggest to put this piece of information in the docs.

Kind regards,
Boris

Hello,

this OPNsense 22.1.8_1-amd64
FreeBSD 13.0-STABLE
OpenSSL 1.1.1o 3 May 2022.

This might sound stupid but I am missing the Services | Router Advertisement menu entry:

https://docs.opnsense.org/manual/radvd.html?highlight=advertisments#

radvd is happily running.

What can I do?

Kind regards,
Boris

It may be related to this: https://github.com/opnsense/core/issues/4121

I had to do something similar when OPNsense moved to logging targets...that was quite a while back.

Yes, looks like an related or even the same issue.