5. Link-Local Addresses (链路本地地址)

以太网接口的 IPv6 链路本地地址 (link-local address) [AARCH] 通过将如上定义的 Interface Identifier 附加到前缀 FE80::/64 来形成.

   10 bits            54 bits                  64 bits
 +----------+-----------------------+----------------------------+
 |1111111010|         (zeros)       |    Interface Identifier    |
 +----------+-----------------------+----------------------------+