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64 lines
1.9 KiB
ReStructuredText
64 lines
1.9 KiB
ReStructuredText
.. _routing-static-arp:
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###
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ARP
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###
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:abbr:`ARP (Address Resolution Protocol)` is a communication protocol used for
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discovering the link layer address, such as a MAC address, associated with a
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given internet layer address, typically an IPv4 address. This mapping is a
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critical function in the Internet protocol suite. ARP was defined in 1982 by
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:rfc:`826` which is Internet Standard STD 37.
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In Internet Protocol Version 6 (IPv6) networks, the functionality of ARP is
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provided by the Neighbor Discovery Protocol (NDP).
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To manipulate or display ARP_ table entries, the following commands are
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implemented.
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*********
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Configure
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*********
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.. cfgcmd:: set protocols static arp interface <interface> address <host>
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mac <mac>
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This will configure a static ARP entry always resolving `<address>` to
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`<mac>` for interface `<interface>`.
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Example:
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.. code-block:: none
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set protocols static arp interface eth0 address 192.0.2.1 mac 01:23:45:67:89:01
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*********
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Operation
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*********
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.. opcmd:: show protocols static arp
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Display all known ARP table entries spanning across all interfaces
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.. code-block:: none
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vyos@vyos:~$ show protocols static arp
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Address HWtype HWaddress Flags Mask Iface
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10.1.1.1 ether 00:53:00:de:23:2e C eth1
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10.1.1.100 ether 00:53:00:de:23:aa CM eth1
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.. opcmd:: show protocols static arp interface eth1
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Display all known ARP table entries on a given interface only (`eth1`):
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.. code-block:: none
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vyos@vyos:~$ show protocols static arp interface eth1
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Address HWtype HWaddress Flags Mask Iface
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10.1.1.1 ether 00:53:00:de:23:2e C eth1
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10.1.1.100 ether 00:53:00:de:23:aa CM eth1
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.. _ARP: https://en.wikipedia.org/wiki/Address_Resolution_Protocol
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