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Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter 15 Completing Interface Configuration (TransparentMode, 8.4 and Later)
Monitoring Interfaces
• Interface Graphs, page 15-25
• PPPoE Client, page 15-28
• Interface Connection, page 15-28
ARP Table
The Monitoring > Interfaces > ARP Table pane displays the ARP table, including static and dynamic
entries. The ARP table includes entries that map a MAC address to an IP address for a given interface.
Fields
• Interface—Lists the interface name associated with the mapping.
• IP Address—Shows the IP address.
• MAC Address—Shows the MAC address.
• Proxy ARP—Displays Yes if proxy ARP is enabled on the interface. Displays No if proxy ARP is
not enabled on the interface.
• Clear—Clears the dynamic ARP table entries. Static entries are not cleared.
• Refresh—Refreshes the table with current information from the ASA and updates Last Updated date
and time.
• Last Updated—Display only. Shows the date and time the display was updated.
DHCP
The ASA lets you monitor DHCP status, including the addresses assigned to clients, the lease
information for a ASA interface, and DHCP statistics.
DHCP Server Table
The Monitoring > Interfaces > DHCP > DHCP Server Table lists the IP addresses assigned to DHCP
clients.
Fields
• IP Address—Shows the IP address assigned to the client.
• Client-ID—Shows the client MAC address or ID.
• Lease Expiration—Shows the date that the DHCP lease expires. The lease indicates how long the
client can use the assigned IP address. Remaining time is also specified in the number of seconds
and is based on the timestamp in the Last Updated display-only field.
• Number of Active Leases—Shows the total number of DHCP leases.
• Refresh—Refreshes the information from the ASA.
• Last Updated—Shows when the data in the table was last updated.