arp - address resolution display and control
arp -a [ vmunix [ kmem ] ]
arp -d hostname
arp -s hostname ether_address [ temp ] [ pub ] [ trail ]
arp -f filename
The arp program displays and modifies the Internet-to-Ethernet address
translation tables used by the address resolution protocol (arp(4P)).
With no flags, the program displays the current ARP entry for hostname.
The host may be specified by name or by number, using Internet dot
-a Display all of the current ARP entries by reading the table from
the file kmem (default /dev/kmem) based on the kernel file vmu-
nix (default /vmunix).
-d Delete an entry for the host called hostname. This option may
only be used by the super-user.
-s Create an ARP entry for the host called hostname with the Ether-
net address ether_address. The Ethernet address is given as six
hex bytes separated by colons. The entry will be permanent
unless the word temp is given in the command. If the word pub
is given, the entry will be published, for instance, this system
will respond to ARP requests for hostname even though the host-
name is not its own. The word trail indicates that trailer
encapsulations may be sent to this host.
-f Read the file named filename and set multiple entries in the ARP
tables. Entries in the file should be of the form
hostname ether_address [ temp ] [ pub ] [ trail ]
with argument meanings as given above.
17 November 1987 ARP(8C)