All interfaces in the network are identified by an IP address. The IP header encapsulated at the Network layer carries the ultimate source and destination IP addresses. However, for actual transmission, these IP datagrams are encapsulated in Data Link layer frames. The header in this layer carries the hardware addresses of the immediate source and destination.
(For clear understanding refer to my earlier blog on TCP-IP data and data flow). The protocol that creates the association between Hardware addresses and IP address is called Address Resolution Protocol (ARP). The protocol provides answer for a single question for an interface: I know the destination’s IP address, what is its hardware (MAC) address? There are a lot of literatures in the Internet to explain ARP. I just provide here small animation for a better idea. The animation provides a clear reason, about why IP address is preferred over MAC address, to deliver packet over internet. I believe the animation will help to understand the basic concept of ARP. That’s it!
(For clear understanding refer to my earlier blog on TCP-IP data and data flow). The protocol that creates the association between Hardware addresses and IP address is called Address Resolution Protocol (ARP). The protocol provides answer for a single question for an interface: I know the destination’s IP address, what is its hardware (MAC) address? There are a lot of literatures in the Internet to explain ARP. I just provide here small animation for a better idea. The animation provides a clear reason, about why IP address is preferred over MAC address, to deliver packet over internet. I believe the animation will help to understand the basic concept of ARP. That’s it!
That was helpful., Thank you.
ReplyDeleteThat was helpful., Thank you.
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