arp(1M)

Display the current ARP entry for hostname, which must appear in the hostname database (see hosts(4)), or for the DARPA Internet address expressed in Internet standard ``dot'' notation.

Display all current ARP entries by reading the table from /dev/kmem based on the kernel file system (default /stand/vmunix). On PA systems only: if a core argument is supplied, read the table from core instead of /dev/kmem. The -an option provides the same information as the -a option except that network addresses are not displayed symbolically.

If an ARP entry exists for the host called hostname, delete it. This option cannot be used to delete a permanent ARP entry whose IP address is an interface on the local system.

(Not recommended). Delete a permanent ARP entry whose IP address is an interface on the local system. The removal of such an ARP entry may result in loss or limitation of network connectivity with remote machines. The local system will no longer respond to ARP requests for this IP address. Consequently, communication with remote systems is possible only when that communication is initiated by the local system. This option should be used with extreme caution.

Read file filename and set multiple entries in the ARP tables. Fibre Channel entries in the file should be of the form:

Other entries in the file should be of the form:

The argument meanings are the same as for the -s option.

Create an ARP entry for the host called hostname with the hardware station address hw_address. The hardware station address is given as six hexadecimal bytes separated by colons. If an ARP entry already exists for hostname, the existing entry is updated with the new information.

The entry is permanent unless the word temp is given in the command.

If the word pub is specified, the entry is published, which means that this system will act as an ARP server responding to requests for hostname even though the host address is not its own.

The word rif specifies source routing information used for token ring networks. This information allows you to specify the particular bridge route which the token ring packet should be delivered. rif_address is given as an even number of hexadecimal bytes separated by colons, up to a maximum of 16 bytes.

Create a permanent ARP entry for the Fibre Channel host called hostname with the N_Port address nport_id. The N_Port address is given as three hexadecimal bytes separated by colons. If an ARP entry already exists for hostname, the existing entry is updated with the new information.