= Secure Neighbor Discovery
{wiki=Secure_Neighbor_Discovery}
Secure Neighbor Discovery (SEND) is a security extension to the Neighbor Discovery Protocol (NDP) used in Internet Protocol version 6 (IPv6) networks. The Neighbor Discovery Protocol is responsible for various functions, including determining the link-layer addresses of neighboring nodes, discovering other routers, maintaining reachability information about the paths to active neighbors, and performing duplicate address detection.
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