Tech9
Part of the Furniture
Are you question the security of IPv6 in general
What I'm saying is I can care about security only when I know what is going on. When I don't, I can only hope about security. Lost services as a result of IPv6 are part of security measures. The fact the developers around don't have IPv6 ISP's to test with doesn't make me feel any better.
IPv6 doesn't use NAT.
With NAT acceleration disabled the router can process about 350Mbps WAN-LAN, no more Gigabit capable. It affects all WAN traffic. I don't know if the error in logs is something to be concerned about, but a kernel buggy log doesn't sound very exciting when testing something new.
The same argument could be made for turning off IPv4 if you have IPv6 enabled.
WAN Disconnected. No Internet. Tested already. Asuswrt needs IPv4 to function properly.
IPv6 doesn't use NAT.
A layer of security lost.