OVH doesn't properly deploy IPv6 either. pfSense is also being weird (if you only get a /64 you need SLAAC or else you can't configure the LAN with it for some bizarre reason and OVH doesn't SLAAC properly)
Though thanks to HE/tunnelbroker.net I deployed a /48 on my network and all is good now (and easier).
Though thanks to HE/tunnelbroker.net I deployed a /48 on my network and all is good now (and easier).