This task describes how to view the Address Resolution Protocol (ARP) cache, which consists of the Internet-to-Ethernet address translation tables. ARP is a TCP/IP protocol used to obtain a network node's physical address (the Machine Access Control address). The ARP cache is a list of each network device, its IP address, mask, and physical address.
To View the ARP Cache
- Access the NETWORK application instance menu as described in Accessing KM Commands and InfoBoxes.
- Select TCP/IP > Utilities > ARP > Show ARP cache. BMC PATROL writes the results to a BMC PATROL task object (Show ARP Cache) in the NETWORK container.
- Access the Show ARP Cache task object as described in Accessing KM Commands and InfoBoxes and view the results. Your results should resemble this example:
Output Format
The output has the following format. Following table defines each field.
Device IP Address Mask Flags Phys Addr ----- -------------------- --------------- ----- --------------- hme0 meridian.xyz.com 255.255.255.255 p 01:00:b2:83:8c:5b
Show ARP Cache Command Output Format
Field | Description |
|---|---|
Device | Device name assigned to the physical address |
IPAddress | The numerical address or its text string alias |
Mask | subnet mask |
Flags | P - Publish, includes IP address for the computer and the addresses that have been explicitly added using the Add Host to Cache (arp -s) option S - Static, not learned for the ARP protocol U - Unresolved, waiting for ARP response M - Mapping, only used for multicast entry for 224.0.0.0 |
Phys Address | The physical address, also known as the Machine Access Control (MAC) address |
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