This article discusses address resolution in IPv6 and how to configure a static Neighbor Discovery entry on Crossbeam X-series Platform.A neighbor IPv6 host doesn't respond to Neighbor Solicitation messages.
Neighbor Discovery Protocol (NDP) is a protocol that implements several key functions in IPv6. One of them is address resolution; that is, mapping between IPv6 addresses and link-layer addresses (known as ARP in IPv4). NDP uses ICMPv6 to exchange the messages necessary for its functions. Two messages are defined for address resolution:
The final solution is to correct NDP the behavior on the problematic neighbor device.