IPv6 Neighbor Discovery (ND) Summary

1. ND 是藉由 ICMPv6 在 hosts 和 routers 間傳送資料

2. 共分為 5 種 type 的 ICMPv6 message：
a. Router Solicitation / Router Advertisement
b. Neighbor Solicitation / Neighbor Advertisement
c. Redirect message

3. 可達到下列功能
a. Neighbor Discovery (ND)
b. Router Discovery (RD)
c. Address Autoconfiguration
d. Address Resolution
e. Neighbor Unreachability Detection (NUD)
f. Duplicate Address Detection (DAD)
g. Redirection