Address Resolution Protocol (ARP)

From wikieduonline
Jump to navigation Jump to search

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.


When you try to ping an IP address on your local network, say, your system has to turn the IP address 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]