Nodes send Neighbor Solicitations to request the link-layer address of a target node while also providing their own link-layer address to the target. Neighbor Solicitations are multicast when the node needs to resolve an address and unicast when the node seeks to verify the reachability of a neighbor. (type=135; code=0).
| Field Name | Type | Description |
|---|---|---|
| Target_IPv6_Addr0..1 | AddressObjectType |
The IP address of the target of the solicitation. |
| Options0..1 | NeighborSolicitationOptionsType |
Neighbor Solicitation messages include zero or more options, some of which may appear multiple times in the same message. |