# neighbor > List of all discovered nodes by the IPv6 Neighbor Discovery protocol, or nodes added manually by configuration. ----------- ## ipv6/neighbor **Type:** Directory List of all discovered nodes by the IPv6 [Neighbor Discovery](https://tools.ietf.org/html/rfc4861) protocol, or nodes added manually by configuration. The default maximum number of neighbor entries depends on installed RAM. Adjust it with `/ipv6/settings/set max-neighbor-entries=x`. See [IPv6 Settings](./settings.md) for details. disabled dynamic router IPv6 address of the neighbor. Interface name to which this neighbor is attached. MAC address of the device to add. Status of the cached entry: - **noarp** - the neighbor entry is valid. RouterOS does not validate this entry, but it can be removed when its lifetime expires. - **incomplete** - address resolution is in progress and the neighbor's link-layer address is not yet determined. - **reachable** - the neighbor was reachable recently (within tens of seconds). - **stale** - the neighbor is no longer known to be reachable. Will continue sending traffic to the neighbor before attempting reachability verification. - **delay** - the neighbor is no longer known to be reachable, and traffic has recently been sent to the neighbor. RouterOS delays probes briefly to allow the upper-layer protocol to confirm reachability. - **probe** - the neighbor is no longer known to be reachable and unicast Neighbor Solicitation probes are being sent to verify reachability. - **failed** - RouterOS could not resolve the neighbor's MAC address using the Neighbor Discovery protocol. Indicates the VRF associated with this neighbor entry.