OPNsense Forum

English Forums => General Discussion => Topic started by: Mayo132 on May 16, 2026, 03:22:55 PM

Title: Problems - IPv6 - Privacy extension (Windows) - interupts connection
Post by: Mayo132 on May 16, 2026, 03:22:55 PM
Hey everyone,

i hope some knows the problem and can help me. At this time iam trying to get Ipv6 to work. So i decided to use SLACC and my provider sends out an static /56 Ipv6 prefix.

So i configured my vlans with diffent Identifier in the Interfaces. For example my VLAN 150 is now "96Hex".
The RA (on the LAN interface) is set to "Stateless", but i also tried "unmanaged". 

All clients are getting the GUA IP adress and everything seems to work. But on my windows clients the connection interupt after about 30 seconds. When i replug the network cable, the same things happen.  >  First connection is there >> 30 seconds later >> no connection

After reading some things i tried to disable the privacy extensions on my windows client.
> After this the connection works continuously

But i could not imagine, that this is the right way to configure ipv6.... So i would like to ask if someone has the same problem and maybe has a solution for this.

Thanks al lot for helping
Mario