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na_arp - Address resolution display and control
arp [-n] hostname
arp [-n] -a
arp -d hostname
arp -s hostname ether_address [ temp ] [ pub ]
The arp command displays and modifies the tables that the
address resolution protocol uses to translate between
Internet and Ethernet addresses.
With no flags, arp displays the current ARP entry for
hostname. The host may be specified by name or by number,
using Internet dot notation.
- Displays all of the current ARP entries.
- Deletes an entry for the host called hostname.
- IP addresses are displayed instead of hostnames.
If the words following -s include the keyword pub,
the entry will be "published"; that is, this system
will act as an ARP server, responding to requests
for hostname even though the host address is not
- Creates an ARP entry for the host called hostname
with the Ethernet address ether_address. The
Ethernet address is given as six hex bytes
separated by colons. The entry not will be
permanent if the words following -s includes the
keyword temp. Temporary entries that consist of a
complete Internet address and a matching Ethernet
address are flushed from the arp table if they
haven't been referenced in the past 20 minutes. A
permanent entry is not flushed.
In takeover mode, each node in an HA pair maintains its
own ARP table. You can make changes to the ARP table on
the live node, or you can make changes to the ARP table on
the failed node using the arp command in partner mode.
However, the changes you make in partner mode are lost
after a giveback.
When run from a vfiler context, (for example, via the
vfiler run command), arp operates on the concerned vfiler.
As currently all vfilers in an ipspace share an arp table,
arp operates on the arp table of the concerned vfiler's
na_ifconfig(1), na_partner(1), na_ipspace(1),
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