Specifying Sources
Each IPv6 system must recognize the following addresses:
�¡ Unicast address
�¡ Link local address (FE80/10 | EUI64)
�¡ Loopback (::1)
�¡ All-nodes multicast (FF00::1)
�¡ Site-local multicast (FF02::2)
�¡ Solicited-nodes multicast (FF02::1:FF00/104)
Additionally, some systems will also use the following addresses:
�¡ IPv4 mapped address (0::FFFF | 32-bit, IPv4 address).
�¡ Second unicast address shared with another system (anycast).
�¡ Additional multicast groups.
�¡ Routers must support subnet-router anycast (all zeros EUI64).
�¡ Routers must support local all-routers multicast (FF01::2), link-local
(FF02::2), and site-local (FF05:2).
�¡ Routers must support routing protocol multicast groups.