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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

  1. Access the NETWORK application instance menu as described in Accessing KM Commands and InfoBoxes.
  2. 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.
  3. 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

Related topics

Network (NETWORK)

Network Interface

Network Addresses

Network Protocol

Network Traffic

Network Management

Address Resolution Protocol (ARP)

UNIX to UNIX Communication Protocol (UUCP)

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