I currently have the VPN client configured using OpenVPN. I have my XBOX console enabled for VPN access. Since I also have IPV6 enabled on my router (Internet and LAN) all clients automatically receive an IPv4 and also an IPv6 address. There is no possibility to manually disable IPv6 on my Xbox (option not provided on the device). Therefor all outgoing IPv4 traffic from my Xbox is correctly routed through my VPN connection as intended. However all IPv6 traffic is directly routed to the internet causing VPN leakage. This is undesired and I would expect the router to block IPv6 traffic for clients which have VPN access configured to prevent traffic leakage. At least until your firmware will implement IPv6 support for the VPN client.

Is there a way to block IPv6 traffic for VPN access enabled clients (e.g. using the built-in IPv6 firewall)? And if not can you please consider this functionality for a future release since it is a security concern and I need all outgoing traffic to either pass through the configured VPN (IPv4) or be blocked (Ipv6).