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:
|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.|
|6.||In ARP, ARP table uses ARP reply for its updation.||While in RARP, RARP table uses RARP reply for configuration of IP addresses .|
|7.||Hosts and routers uses ARP for knowing the MAC address of other hosts and routers in the networks.||While RARP is used by small users having less facilities.|
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- ARP, Reverse ARP(RARP), Inverse ARP (InARP), Proxy ARP and Gratuitous ARP
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