Difference between revisions of "Address Resolution Protocol (ARP)"
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Address Resolution Protocol is a network layer protocol used to convert an IP address into a physical address, such as an Ethernet address. | Address Resolution Protocol is a network layer protocol used to convert an IP address into a physical address, such as an Ethernet address. | ||
A host wishing to obtain a physical address broadcasts an ARP request onto the TCP/IP network. The host on the network that has the IP address in the request then replies with its physical hardware address. | A host wishing to obtain a physical address broadcasts an ARP request onto the TCP/IP network. The host on the network that has the IP address in the request then replies with its physical hardware address. | ||
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==ARP Table== | ==ARP Table== | ||
| − | + | Command in Linux and macOS : <code>[[arp]] -an </code> | |
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| − | < | + | == Related commands == |
| − | + | * <code>[[show mac address-table]]</code> | |
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==See also== | ==See also== | ||
| + | * {{ARP}} | ||
| + | * {{ethernet}} | ||
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[[Category:Linux]] | [[Category:Linux]] | ||
| − | + | [[Category:Networking]] | |
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Latest revision as of 07:33, 16 June 2020
Address Resolution Protocol is a network layer protocol used to convert an IP address into a physical address, such as an Ethernet address.
A host wishing to obtain a physical address broadcasts an ARP request onto the TCP/IP network. The host on the network that has the IP address in the request then replies with its physical hardware address.
Contents
Basics[edit]
When you try to ping an IP address on your local network, say 192.168.1.1, your system has to turn the IP address 192.168.1.1 into a MAC address. This involves using ARP to resolve the address.
ARP Table[edit]
Command in Linux and macOS : arp -an
Related commands[edit]
See also[edit]
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