ARP
Arp (address resolution protocol)
Arp (address resolution protocol)
RARP (Reverse Address Resolution Protocol) is used to map a physical hardware address (MAC address) to an IP address, allowing a device to determine its IP address on a local network. In contrast, ARP (Address Resolution Protocol) performs the opposite function; it translates an IP address into a physical MAC address, enabling network devices to locate each other within a local area network. Both protocols facilitate communication in IP networks by ensuring devices can identify each other based on their respective addresses.
In a Local hosts file.
ARP - Address resolution protocol (ARP) enables the packaging of IP data into ethernet packages. It is the system and messaging protocol that is used to find the ethernet (hardware) address from a specific IP number. Without this protocol, the ethernet package could not be generated from the IP package, because the ethernet address could not be determined RARP - Reverse address resolution protocol (RARP) is used to allow a computer without a local permanent data storage media to determine its IP address from its ethernet address. Fore More information you can visit this website:-http://www.iyogibusiness.com
The protocol used to discover a physical address from a known logical address is the Address Resolution Protocol (ARP). ARP operates by broadcasting an ARP request message on the local network, which contains the known logical address (IP address) and asks for the corresponding physical address (MAC address). The device that owns the requested IP address responds with an ARP reply message, providing its physical address. This process enables devices on the same local network to communicate effectively.
If a device does not receive an IP address from a DHCP server, it may resort to using a link-local IP address, often in the range of 169.254.0.1 to 169.254.255.254. This automatic configuration allows the device to communicate with other devices on the same local network segment without needing a DHCP server. This process is part of the Automatic Private IP Addressing (APIPA) protocol.
The destination ARP (Address Resolution Protocol) address is the MAC (Media Access Control) address that corresponds to the IP address of the intended recipient of a data packet on a local network. When a device wants to communicate with another device, it uses ARP to map the IP address to its MAC address. If the MAC address is not already known, the device broadcasts an ARP request to the network, and the device with the matching IP address responds with its MAC address. This process enables devices to communicate effectively over Ethernet networks.
Obtaining an IP address refers to the process by which a device connects to a network and is assigned a unique identifier, known as an Internet Protocol (IP) address. This address allows the device to communicate with other devices over the internet or a local network. It can be assigned statically (fixed) or dynamically (temporary), typically through a DHCP (Dynamic Host Configuration Protocol) server. Essentially, obtaining an IP address is crucial for enabling data exchange and network connectivity.
ARP (Address Resolution Protocol) maps IP addresses to MAC (Media Access Control) addresses. It enables devices on a local network to discover the hardware address associated with a given IP address, allowing for proper data packet transmission within the same subnet. When a device needs to send data to an IP address, it uses ARP to find the corresponding MAC address, ensuring the data reaches the correct destination.
A computer uses the Address Resolution Protocol (ARP) to find another machine's MAC address. When it needs to communicate with another device on the same local network, it sends out an ARP request, which is a broadcast message that asks, "Who has this IP address?" The device that owns that IP address responds with its MAC address. Once the requesting computer receives the MAC address, it can then send data directly to the intended device.
An IP address is a 4-byte (32-bit) number, used to identify a computer. This is often configured into the computer; or the IP address of a computer is handed to the computer, at startup, by a DHCP server. It is not generally coded into hardware, although certain networking equipment might have, in hardware, a default address such as 192.168.0.1 (this is a private address). For the most part, the IP address is none of the options you specify - it is neither hardware, nor software; it is information used by the hardware and software.