Messages

Ah. Thank you for the extra set of eyes.

I looked at all the possible software explanations apart from my hardware.
Yes I am running a USB ethernet adapter for my LAN interface. I did think it was weird that my interface was constantly going up and down all the time.

I also have no idea how to delete a post from this site.

I think I may have posted this in the wrong topic

Hi, I am quite new to OPNsense. I first started using it maybe earlier this year. At first I didn't use IPv6, then I learnt heaps about it and even transitioned to running an IPv6 only network with Tayga and DHCP option 108. My Unbound never worked/any other DNS servers and would keep restarting, never knew why, so I just didn't run a DNS server on the router. This was probably because of this issue looking back on it, since the IPv6 address kept changing/restarting.

OPNsense seems to keep requesting/renewing its IPv6 DHCP from my ISP. I have browsed the forums and found that my ISP (Starlink) seems to have a lot of issues with IPv6.

I'm not 100% sure where I can get all the logs from, but here are my general logs from the UI dashboard:


Note: Changed my IPv6 addresses to use `2001:db8` for lan interface/56 prefix and `2001:db9` for my WAN IP.

```
2025-05-09T13:02:37   Notice   dhclient   dhclient-script: Creating resolv.conf   
2025-05-09T13:02:37   Notice   dhclient   dhclient-script: Reason RENEW on em0 executing   
2025-05-09T13:01:47   Notice   dhcp6c   got an expected reply, sleeping.   
2025-05-09T13:01:47   Notice   dhcp6c   script "/var/etc/dhcp6c_wan_script.sh" terminated   
2025-05-09T13:01:47   Notice   dhcp6c   dhcp6c_script: RENEW on em0 executing   
2025-05-09T13:01:47   Notice   dhcp6c   executes /var/etc/dhcp6c_wan_script.sh   
2025-05-09T13:01:47   Notice   dhcp6c   removing an event on em0, state=RENEW   
2025-05-09T13:01:47   Notice   dhcp6c   update a prefix 2001:db8::/56 pltime=150, vltime=300   
2025-05-09T13:01:47   Notice   dhcp6c   update an IA: PD-0   
2025-05-09T13:01:47   Notice   dhcp6c   nameserver[1] 2606:4700:4700::1111   
2025-05-09T13:01:47   Notice   dhcp6c   nameserver[0] 2001:4860:4860::8888   
2025-05-09T13:01:47   Notice   dhcp6c   Received REPLY for RENEW   
2025-05-09T13:01:47   Notice   dhcp6c   get DHCP option DNS, len 32   
2025-05-09T13:01:47   Notice   dhcp6c   IA_PD prefix: 2001:db8::/56 pltime=150 vltime=300   
2025-05-09T13:01:47   Notice   dhcp6c   get DHCP option IA_PD prefix, len 25   
2025-05-09T13:01:47   Notice   dhcp6c   IA_PD: ID=0, T1=75, T2=120   
2025-05-09T13:01:47   Notice   dhcp6c   get DHCP option IA_PD, len 41   
2025-05-09T13:01:47   Notice   dhcp6c   DUID: 00:02:00:00:c7:10:00:00:00:93   
2025-05-09T13:01:47   Notice   dhcp6c   get DHCP option server ID, len 10   
2025-05-09T13:01:47   Notice   dhcp6c   DUID: 00:01:00:01:2f:37:8f:24:b8:ae:ed:76:42:cb   
2025-05-09T13:01:47   Notice   dhcp6c   get DHCP option client ID, len 14   
2025-05-09T13:01:47   Notice   dhcp6c   receive reply from 2001:db9::1 on em0   
2025-05-09T13:01:46   Notice   dhcp6c   send renew to ff02::1:2%em0   
2025-05-09T13:01:46   Notice   dhcp6c   set IA_PD   
2025-05-09T13:01:46   Notice   dhcp6c   set IA_PD prefix   
2025-05-09T13:01:46   Notice   dhcp6c   set option request (len 4)   
2025-05-09T13:01:46   Notice   dhcp6c   set elapsed time (len 2)   
2025-05-09T13:01:46   Notice   dhcp6c   set server ID (len 10)   
2025-05-09T13:01:46   Notice   dhcp6c   set client ID (len 14)   
2025-05-09T13:01:46   Notice   dhcp6c   a new XID (47c60d) is generated   
2025-05-09T13:01:46   Notice   dhcp6c   Sending Renew   
2025-05-09T13:01:46   Notice   dhcp6c   reset a timer on em0, state=RENEW, timeo=0, retrans=10540   
2025-05-09T13:01:46   Notice   dhcp6c   IA timeout for PD-0, state=ACTIVE   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : wireguard_sync())   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : webgui_configure_do(,[wan,lan]))   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : vxlan_configure_do())   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : unbound_configure_do(,[wan,lan]))   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : openssh_configure_do(,[wan,lan]))   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : opendns_configure_do())   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : ntpd_configure_do())   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (execute task : dhcrelay_configure_if(,[wan,lan],inet6))   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure newwanip (,[wan,lan],inet6)   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure vpn (execute task : wireguard_configure_do())   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure vpn (execute task : openvpn_configure_do(,[wan,lan]))   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure vpn (execute task : ipsec_configure_do(,[wan,lan]))   
2025-05-09T13:00:36   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure vpn (,[wan,lan],inet6)   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure monitor (execute task : dpinger_configure_do(,[WAN_DHCP6]))   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure monitor (,[WAN_DHCP6])   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: ROUTING: keeping inet6 default route to fe80::200:5eff:fe00:101%em0   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: ROUTING: configuring inet6 default gateway on wan   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: ROUTING: entering configure using wan, lan   
2025-05-09T13:00:35   Warning   radvd   exiting, 1 sigterm(s) received   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure dhcp (execute task : radvd_configure_dhcp(,inet6))   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure dhcp (execute task : dhcpd_dhcp_configure(,inet6))   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: plugins_configure dhcp (,inet6)   
2025-05-09T13:00:35   Notice   opnsense   /usr/local/etc/rc.newwanipv6: IP renewal starting (address: fe80::baae:edff:fe76:42cb%em0, interface: wan, device: em0)   
2025-05-09T13:00:32   Notice   dhcp6c   got an expected reply, sleeping.
```

These are from gateway monitoring:
```
2025-05-09T13:13:46   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:13:46   Warning   dpinger   exiting on signal 15   
2025-05-09T13:12:57   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:12:57   Warning   dpinger   exiting on signal 15   
2025-05-09T13:12:56   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:12:56   Warning   dpinger   exiting on signal 15   
2025-05-09T13:12:53   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:12:53   Warning   dpinger   exiting on signal 15   
2025-05-09T13:12:52   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:12:52   Warning   dpinger   exiting on signal 15   
2025-05-09T13:12:16   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:12:16   Warning   dpinger   exiting on signal 15   
2025-05-09T13:00:35   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:00:35   Warning   dpinger   exiting on signal 15   
2025-05-09T13:00:24   Warning   dpinger   send_interval 1000ms loss_interval 4000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 0ms loss_alarm 0% alarm_hold 10000ms dest_addr fe80::200:5eff:fe00:101%em0 bind_addr fe80::baae:edff:fe76:42cb%em0 identifier "WAN_DHCP6 "   
2025-05-09T13:00:24   Warning   dpinger   exiting on signal 15
```

There are also these from dmesg:

```
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: 3 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: 3 link states coalesced
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: 3 link states coalesced
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: 3 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: 4 link states coalesced
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: link state changed to DOWN
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
ue0: 2 link states coalesced
ue0: link state changed to UP
```

You can see the LAN interface go up and down up and down.

This makes me IPv6 only network loose IP's on my wifi and disconnect from the AP. Very annoying.
At first I thought it was something to do with RA's so I went down that rabbit hole.

I'm more than happy enough to share any other logs from my router but I just need to know where to find them.

**Things I have tried**

• Trying this out from the forums: https://forum.opnsense.org/index.php?topic=41160.45 where you install a different version of dhcp6c `pkg add -f https://pkg.opnsense.org/FreeBSD:13:amd64/snapshots/misc/dhcp6c-20240607_1.pkg` but this package doesn't exist anymore, furthermore, it looks like this was already changed in the OPNsense latest versions.
• Turning on/off gateway monitoring
• Turning off the blocking of bogon and private networks on my WAN interface, as per https://github.com/opnsense/core/issues/8587
• Changing my my dhcp6c_wan.conf prefix from `prefix ::/56 infinity;` to `prefix ::/56 86400 172800;`
• Turning on/off all the hardware accel interface settings in `Interfaces > Settings` as well as the `Prevent release` option

For now I have moved my network back from IPv6-only to a dual stack and the connections issues stopped, but I would like to resolve this issue so I can run my IPv6-only/NAT64 network as well as run DNS servers on OPNsense again.


Type   opnsense   
Version   25.1.6_2   
Architecture   amd64   
Commit   7918189f3   
Mirror   https://pkg.opnsense.org/FreeBSD:14:amd64/25.1   
Repositories   OPNsense (Priority: 11), mimugmail (Priority: 5)   
Updated on   Fri May 9 12:17:55 AEST 2025   
Checked on   N/A