Understanding IPv6 Neighbor Discovery
This section describes the IPv6 ND and SEND mechanisms.
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IPv6 ND
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IPv6 neighbor discovery (ND) uses ICMPv6 messages to implement address resolution, verify neighbor reachability, detect duplicate addresses, discover routers and prefixes, automatically assign addresses, and perform the redirection function.
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IPv6 SEND
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This section describes the IPv6 Secure Neighbor Discovery (SEND) protocol.