Detecting incorrect IP addresses (arp)

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Detecting incorrect IP addresses (arp)

The arp command provides information about Ethernet/IP address translation. You can use the command to detect systems on the LAN that are configured with an incorrect IP address. The table that follows identifies the different options and functions for the arp command.

Command	Function
`arp -a [Unix[kmem]]`	Display all of the current ARP entries by reading the table from the file kmem (default /dev/kmem), based on the kernel file Unix (default /kernel/Unix )
`arp -d` `hostname`	Delete an entry for the host called hostname. Note: This option can be used only by the super-user.
`arp -s` `hostname` `ether_address` `[temp] [pub] [trail]`	Create an ARP entry for the host called hostname with the Ethernet address ether_address.
`arp -f` `filename`	Read the file named filename and set multiple entries in the ARP tables