arp(8) CLIX arp(8)
NAME
arp - Displays and controls address resolution
SYNOPSIS
arp hostname
arp -a
arp -d hostname
arp -s hostname ether_addr [temp] [pub]
arp -sx hostname x25_addr [temp]
arp -f filename
arp -t hostname
FLAGS
-a Displays all current ARP entries.
-d hostname
Deletes the ARP entry for host hostname. Superuser privilege is
required for this flag.
-s hostname ether_addr [temp] [pub]
Creates an ARP entry for host hostname with the Ethernet address
ether_addr. The Ethernet address is given as six hexadecimal bytes
separated by dashes. The entry is permanently added to the ARP
tables unless the temp flag is used. The node responds to any ARP
request seen on the network for host hostname if the pub flag is
used. Superuser privilege is required for this flag.
-sx hostname x25_addr [temp]
Creates an ARP entry for host hostname with X.25 address x25_addr.
The X.25 address is given as 1-15 decimal digits. The entry is
permanently added to ARP tables unless the temp flag is used.
Superuser privilege is required for this flag.
-f filename
Reads from filename and sets multiple entries in the arp tables.
Entries in the filename field have the following format:
hostname ether_addr [temp] [pub]
Superuser privilege is required for this flag.
-t hostname
2/94 - Intergraph Corporation 1
arp(8) CLIX arp(8)
Transmits a request on the network to obtain the proper translation
instead of using the local table to get the translation.
DESCRIPTION
The arp command displays and modifies the Internet-to-Ethernet and
Internet-to-X.25 address translation tables used by the Address Resolution
Protocol (ARP). If no flags are specified, the current ARP entry for
hostname is displayed. The host is specified by name or by number, using
Internet dot notation.
EXAMPLES
1. To display the entry for bldg11 in the local address translation
table, enter:
arp bldg11
2. To display all current ARP entries, enter:
arp -a
3. To delete the ARP entry for host bldg11, enter:
arp -d bldg11
Superuser privilege is required for this example.
4. To create an ARP entry for host bldg11 with the ethernet address 08-
00-36-12-34-56, enter:
arp -s bldg11 08-00-36-12-34-56
Superuser privilege is required for this example.
5. To create an ARP entry for host bldg11 with the X.25 address
1234567811, enter:
arp -sx bldg11 1234567811
Superuser privilege is required for this example.
6. To read from the file arp.conf and set multiple entries in the ARP
table, enter:
arp -f arp.conf
Superuser privilege is required for this example.
2 Intergraph Corporation - 2/94
arp(8) CLIX arp(8)
7. To transmit a request on the network to obtain the proper translation
for host bldg11, enter:
arp -t bldg11
DIAGNOSTICS
arp: permission denied
This message displays if some user other than superuser tries to
add or delete entries.
arp: hostname unknown host
This message displays if the user specifies a hostname that arp is
unable to resolve.
Other error messages are displayed if errors are encountered with the
system.
EXIT VALUES
The arp command exits with a value of 0 if successful. If unsuccessful,
it exits with a nonzero value.
RELATED INFORMATION
Commands: rarp(8)
Files: inet(7), arp(7)
2/94 - Intergraph Corporation 3