show ndcache

The show ndcache command shows neighbor discovery (ND) translations on all local interfaces. The output shows only complete cache entries. The output shows the following data about the network interface node:

• The primary address for the interface: IP version, address, and netmask.
• The physical (MAC) address of the interface.
• The name of the interface.
• The type of interface: Ethernet, VLAN, aggregate, or other. The other interface type refers to network interfaces that you cannot configure. Examples of other interface types include gre0, ip6tnl0, lo, sit0, and usb0. Not all appliances have all of these other interface types.
• The lifecycle state for the entry.

  incomplete

  Resolving neighbor and inaccessible.

  reachable

  Neighbor is valid and accessible.

  stale

  Neighbor is valid, but potentially reachable. State to be checked at first transmission.

  delay

  Awaiting verification from stale neighbor and inaccessible.

  failed

  Failed to resolve and inaccessible.

  noarp

  No attempt to resolve and inaccessible.

  permanent

  Neighbor is valid forever and always accessible.

  probe

  Awaiting confirmation from neighbor and inaccessible.