Update: Problem seems to be solved by disabling VLAN Hardware Filtering.
I experience a strange issue. Today I updated my Unifi US-8 60W switch. My OPNsense system is a "router on a stick" configuration. My fiber converter goes into Port 1 of said switch. Port1 is VLAN7. Port 2 has all VLANs tagged an goes to an Intel NUC running OPNsense. After the update, OPNsense was unable the start the DHCP6 service.
In the logs I see this error:
Update: I start to think this problem has nothing to do with OPNsense. Here is something else in the logs:
em0_vlan7: a looped back NS message is detected during DAD for 2a02:XXXXXX. Another DAD probes are being sent.
I have thinkred around with gateway and WAN settings without luck.
I have not idea where to go from here, any help would be greatly appreciated. Let me know if I can provide you additional information.
arghh still not working. And now the firewall starts to crash from time to time. Will contact my ISP to get help.
I have no idea what is going on. It works for now but there are some things I do not understand.
1. All my interfaces are track interface WAN. WAN uses DHCP6 /48 prefix.
WAN gets the IP 1234:1234:2000:29:9876:9876:9876:9876
VLANs are all Track interface. They look like this:
VLAN1 1234:1234:43f0:1:9876:9876:9876:9876
VLAN2 1234:1234:43f0:2:9876:9876:9876:9876
Should the WAN not be on the same subnet? Something like 1234:1234:43f0:29:9876:9876:9876:9876 instead of
1234:1234:2000:29:9876:9876:9876:9876?
2. Is it normal that my Unifi switch sees around 20 other MAC addresses on the WAN Port?
3. Why do I still get the error a looped back NS message is detected during DAD for 1234:1234:2000:29:9876:9876:9876:9876. Another DAD probes are being sent.
With regards to the WAN address, it's within your ISPs network. Remember they are all GUA addresses and they get routed via your ISP.
Thanks for the clarification.
I contacted my ISP and he said that everyone gets a /48 prefix but mine is empty for some strange reason.
He will get in touch with 2nd level support.
It seems to be an issue with the new core CISCO switches from my ISP.