Difference between ARP and RARP

Prerequisite – ARP, Reverse ARP(RARP), Inverse ARP(InARP), Proxy ARP and Gratuitous ARP
In Address Resolution Protocol (ARP), Receiver’s MAC address is fetched. Through ARP, (32-bit) IP address mapped into (48-bit) MAC address.

Whereas, In Reverse Address Resolution Protocol (RARP), IP address is fetched through server. Through RARP, (48-bit) MAC address of 48 bits mapped into (32-bit) IP address.







Let’s see that the difference between ARP and RARP:

S.NO ARP RARP
1. ARP stands for Address Resolution Protocol. Whereas RARP stands for Reverse Address Resolution Protocol.
2. Through ARP, (32-bit) IP address mapped into (48-bit) MAC address. Whereas through RARP, (48-bit) MAC address of 48 bits mapped into (32-bit) IP address.
3. In ARP, broadcast MAC address is used. While in RARP, broadcast IP address is used.
4. In ARP, ARP table is managed or maintained by local host. While in RARP, RARP table is managed or maintained by RARP server.
5. In Address Resolution Protocol, Receiver’s MAC address is fetched. While in RARP, IP address is fetched.



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