Do you block icmp by any chance? For SLAAC and NDP you need not to block ICMP6.
Niels > On 9. Dec 2017, at 11:50, Denis <den...@mindall.org> wrote: > > Erik, > > Thank you for your support. > > Can you share IPv6 part of PF.conf you're using for local network SLAAC? > > Still encounter problem with getting IPv6 by Win7 machine. > > Thanks. > > Denis > >> On 12/8/2017 7:06 PM, obsd wrote: >> Op 8-12-2017 om 15:07 schreef Jan Kalkus: >>> For what it’s worth, I’ve noticed Windows frequently will not grab >>> IPv6 addresses via SLAAC. >>> >>> If I disable IPv6 on the network interface and then re-enable it, >>> then I will be assigned an IPv6 address. >>> >>> Jan Kalkus >>> >> [snip] >> >> I would recheck my configuration if I were you then... Here it is >> working 100% of the time on approx 10 windows (mixed W7/W10) machines. >> The rest of the network (linux and OpenBSD works very well as well >> with IPv6). Of course the firewall handing out the SLAAC is OpenBSD. >> Only be careful with virtual machines, since you would need settings >> on the hypervisor to permit multicast on vlans. The SLAAC broadcast is >> multicast... >> >> Erik >>
