Relationship Between ARP , DNS and DHCP
As was previously noted, IP addresses are dynamic by design since doing so protects users’ privacy and security. IP address changes, though, shouldn’t happen at random. An IP address should be assigned according to rules from a predetermined range of numbers that are available in a particular network. By doing this, problems like two machines getting the same IP address are avoided.
The Dynamic Host Configuration Protocol, or DHCP, is the name given to the regulations. Because IP addresses are required to do an internet search, they are significant as computer identities. Users utilise alphabetical names while searching for a domain name or Uniform Resource Locator (URL).
Computers, on the other hand, link a domain name to a server using the numeric IP address. In order to link the two, an IP address is converted from a bewildering string of digits into a more legible, intelligible domain name by use of a Domain Name System (DNS) server, and vice versa.
How Address Resolution Protocol (ARP) Works?
When computer programs send or get messages, they usually use something called an IP address, which is like a virtual address. But underneath, the real talk happens using another type of address called a MAC address, which is like a device’s actual home address.
So, our goal is to find out the MAC address of where we want to talk to. That’s where ARP comes in handy. It helps by turning the IP address into the physical MAC address, so we can chat with other devices on the network
Most computer programs/applications use logical addresses (IP Addresses) to send/receive messages. However, the actual communication happens over the Physical Address (MAC Address) from layer 2 of the OSI model. So our mission is to get the destination MAC Address which helps communicate with other devices. This is where ARP comes into the picture; its functionality is to translate IP addresses into physical addresses.
ARP