arp(8c)
NAME
arp − address resolution display and control
SYNTAX
arp hostname
arp -a [ unix ] [ kmem ]
arp -d hostname
arp -s hostname ether_addr [ temp ] [ pub ]
arp -f filename
DESCRIPTION
The arp command 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. With the −a flag, the program displays all of the current ARP entries by reading the table from the file kmem (default /dev/kmem) based on the kernel file unix (default /unix).
With the −d flag, a superuser can delete an entry for the host called hostname.
The −s flag is given to create an ARP entry for the host called hostname with the Ethernet address ether_addr. The Ethernet address is given as six hexadecimal bytes separated by colons. The entry is permanent unless the word temp is given in the command. If the word pub is given, the entry will be "published."
The −f flag causes the file filename to be read and multiple entries to be set in the ARP tables. Entries in the file should be of the form:
hostname ether_addr [ temp ] [ pub ]
with argument meanings as given above.