IPv4 Neighbor Messages and Functions and IPv6 Equivalents

Table 6-3 lists IPv4 neighbor messages, components, and functions and their IPv6 equivalents.

Table 6-3. IPv4 Neighbor Messages, Components,and Functions and their IPv6 Equivalents

IPv4	IPv6
ARP Request message	Neighbor Solicitation message
ARP Reply message	Neighbor Advertisement message
ARP cache	Neighbor cache
Gratuitous ARP	Duplicate address detection
Router Solicitation message (optional)	Router Solicitation message (required)
Router Advertisement message (optional)	Router Advertisement message (required)
Redirect message	Redirect message