If you want to use IPv6 with the layer 3 discipline, you need a Linux® kernel with IPv6 support. Because your Linux kernel has not been compiled with IPv6 support, you cannot use IPv6 with the layer 3 discipline, even if your adapter supports IPv6.
User response
Use a Linux kernel that has been complied to include IPv6 support if you want to use IPv6 with layer 3 qeth devices.