Now I have a V4 ubuntu IP address/V6 double stack network, and separate ping6 ipv6.google.com can ping can access the soil terrapin, how can I put the network into pure V6 network, is to my PC as a IPV6 radvd ubuntu server, and then through the usb to Ethernet connection to the router, then other terminal devices can be connected through a router and access to the network, of course the IP address is the address of pure V6, have a great god can help me to guide the