Configuring IP Information
Management and IP Interfaces
Cisco Small Business 300 Series Managed Switch Administration Guide  180
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The following fields are displayed for the neighboring interfaces:
• Interface—Neighboring IPv6 interface type.
• IPv6 Address—IPv6 address of a neighbor.
• MAC Address—MAC address mapped to the specified IPv6 address.
• Type—Neighbor discovery cache information entry type (static or dynamic).
• State—Specifies the IPv6 neighbor status. The values are:
-
Incomplete
—Address resolution is working. The neighbor has not yet 
responded. 
-
Reachable
—Neighbor is known to be reachable.
-
Stale
—Previously-known neighbor is unreachable. No action is taken to 
verify its reachability until traffic must be sent.
-
Delay
—Previously-known neighbor is unreachable. The interface is in 
Delay state for a predefined Delay Time. If no reachability confirmation is 
received, the state changes to Probe.
-
Probe
—Neighbor is no longer known to be reachable, and Unicast 
Neighbor Solicitation probes are being sent to verify the reachability. 
STEP  3 Click Add. The Add IPv6 Neighbors Page opens.
The Add IPv6 Neighbors Page
 
provides information for adding a neighbor to be 
monitored.
STEP  4 Enter the values for the following fields:
• Interface—The neighboring IPv6 interface to be added.
• IPv6 Address—Enter the IPv6 network address assigned to the interface. 
The address must be a valid IPv6 address.
• MAC Address—Enter the MAC address mapped to the specified IPv6 
address.
STEP  5 Click Apply. The switch is updated.
Modifying an IPv6 Neighbor
STEP 1 In Layer 2 mode, click Administration > Management Interface > IPv6 
Neighbors.