Telecommunication Networks and Security

Answer the questions of Address Resolution Protocol (ARP):

1) What is ARP?

2) Explain how to make a distinction between logical address (IP address) and physical address (MAC address).

3) Describe how the mapping of a logical address to a physical address can be static or dynamic.

4) Show and explain how the address resolution protocol (ARP) is used to dynamically map a logical address to a physical address.

5) Show and explain how the proxy ARP can be used to create a subnetting effect.

6) Explain: ATMARP, which maps the IP addresses when the underlying network is an ATM WAN.

7)Explain the ARP software package and the five components of this image:

IP layer ARP Data link layer Cache-control module Output module IP packet Cache table Queues Input module IP packet ARP packet (request) ARP packet ARP packet (request or reply) (reply) IP packet with resolved hardware address ARP packet (request) IP packet IP packet with resolved hardware address