EXP NO: 6 SIMULATION OF ARP / RARP
Date :
AIM: To simulate ARP ( Address Resolution Protocol ) and RARP ( Reverse Address Resolution Protocol )
using Packet tracer.
Procedure:
1. Create a node with the help of device switch by using packet tracer.
2. For running ARP first we have to go with the checking of ipconfig by using ping command and use the
command or arp-a for checking whether the Physical IP address is assigned to the particular node or not.
3. If not assigned means, please start the data transmission with the help of arp protocol in simulation
window with the help of the filter ARP and ICMP.
4. Then again go and check the node address with the help of ping “ipaddress” or arp-a we can get the
ipaddress of the particular node.
5. This concept is called an ARP.
6. Next RARP is the process of generating the IP Address with the help of MAC address. Hence this is an
reverse process process of an ARP protocol.
7. Run and execute the program by using packet tracer.
RARP:
The Reverse Address Resolution Protocol (RARP) is an obsolete computer networking protocol used by a client
computer to request its Internet Protocol (IPv4) address from a computer network, when all it has available is
its link layer or hardware address, such as a MAC address. The client broadcasts the request, and does not need
prior knowledge of the network topology or the identities of servers capable of fulfilling its request.
RARP is described in Internet Engineering Task Force (IETF) publication RFC 903.[1] It has been rendered
obsolete by the Bootstrap Protocol (BOOTP) and the modern Dynamic Host Configuration Protocol (DHCP),
which both support a much greater feature set than RARP.
RARP requires one or more server hosts to maintain a database of mappings of Link Layer addresses to their
respective protocol addresses. Media Access Control (MAC) addresses need to be individually configured on
the servers by an administrator. RARP is limited to serving only IP addresses.
