arp(8c)
NAME
arp − address resolution display and control
SYNTAX
arp [ options ] [ hostname ]
DESCRIPTION
The program displays and modifies the Internet-to-Ethernet address translation tables used by the address resolution protocol arp(.).
The hostname is the name of the host system for which information is to be displayed or modified.
With no flags, the program displays the current ARP entry for hostname.
OPTIONS
−a Displays current Address Resolution Protocol (ARP) entries from the specified name list and core files (next arguments). If not specified, uses /unix and /dev/mem, respectively.
−d Deletes the entry for the host specified by name (next argument).
−f Reads information from the specified file (next argument) and modifies entries accordingly. Entries in the file should be of the form:
hostname ether_addr [ temp ] [ pub ]
with argument meanings as given above.
−s Creates an entry for the host specified by name and Ethernet address (next arguments). If the optional argument temp is not specified, a permanent entry is created. If the optional argument pub also is not specified, the entry is not published.