IPv6 Static Address Configuration//
There are two methods of configuring static IPv6 addresses on Cisco routers://
Configuring the full 128-bit address//
Configuring a 64-bit prefix only, and letting the router derive the rest of address//
You can use the ipv6 address address/prefix-length command to configure the full 128-bit global unicast and unique local addresses. You can use the full 32-digit hex address as well as the abbreviated address in the ipv6 address address/prefix-length command.//
Figure 14-4 IPv6 Address Configuration