IPv6 6RD tunnel block/allow by mac/IP

[NoLight]

Does anyone know of an ability with Merlin, or an add-on / script, that would allow IPv6 connections to only certain mac address or IPv4 address.

My ISP uses a slow IPv6 6RD Tunnel, and I would like to allow IPv6 to be used for only certain devices on my network.

Thanks.

 

[ColinTaylor]

If IPv6 is uniformly slow for you how about setting DNS to prioritise IPv4 addresses over IPv6 addresses?

 

[Crimliar]

On some devices - certainly Windows and Linux - you can turn off IPv6 in the network protocols for the individual devices.

 

[RMerlin]

Just disable IPv6 on your router. 6rd is generally not a very good implementation for daily production usage, and it's unlikely you have any real need to use IPv6.