What does ARP do? Please briefly explain it.

Arp is stands for adderss resolution protocol .it's translute IP address to MAC adderss u can see this when u commit ping ip address and then reun ARP-a

ARP is the mapping of IP address to mac address.

Usually the core gateway have the ARP table. So it will know where to send the data when one network pheriperal needs to communicate to another.

The address resolution protocol (arp) is a protocol used by the Internet Protocol, specifically IPv4, to map ip network Addresses\\s to the hardware addresses used by a data link protocol

adress resoltion protocol : simply it's a why to find @MAC list conneted on ur network for exemple use CMD / arp -a ;) and enjoy

ARP is stands for Address Resolution Protocol. It is the process to find the MAC address with the help of using IP address. 

ARP(Address Resolution Protocol) is used to maintain a correlation between each MAC address and its corresponding IP address.

1. Address resolotion protocal,  a network addresses to the hardware addresses used by a data link protocol.

ARP ( Address resolution protocol).

It is a network layer protocol. It maps ip address to physical address.

when ever switch having source ip add and source mac add along with destination ip address, but it will not know the destination mac address . At that time it will generate ARP request with broadcast mac adress.

 

 

the association of your mac address to you IP address

ARP stands for Address Resolution Protocol. When you try to ping some IP address on your LAN, say 10.12.13.14, your system has to turn the IP address 10.12.13.14 into a MAC address. This involves using ARP to resolve the address, hence its name.

Systems keep an ARP look-up table where they store information about what IP addresses are associated with what MAC addresses. When trying to send a packet to an IP address, the system will first consult this table to see if it already knows the MAC address. If there is a value cached, ARP is not used.

If the IP address is not found in the ARP table, the system will then send a broadcast packet to the network using the ARP protocol to ask "who has 10.12.13.14". Because it is a broadcast packet, it is sent to a special (broadcast) MAC address that causes all machines on the network to receive it. The machine with the requested IP address will reply with an ARP packet that says "I am 10.12.13.14", and this includes the MAC address which can receive packets for that IP.