Understanding IPv6 Neighbor Discovery Protocol
What is NDP NDP (Neighbor Discovery Protocol) is a core IPv6 protocol defined in RFC 4861. It combines the roles of several IPv4-era mechanisms such as ARP (Address Resolution Protocol), ICMP Router Discovery, and ICMP Redirect into a single protocol, making IPv6 network management more consistent and efficient. Built on ICMPv6 (Internet Control Message Protocol version 6), it handles functions such as neighbor discovery, router discovery, automatic address configuration, duplicate address detection, and path optimization. ...