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Authors:
James F. Kurose, Keith W. Ross
Chapter:
The Link Layer: Links,access Networks, And Lans
Exercise:
Problems
Question:31 | ISBN:9780132856201 | Edition: 6

Question

In this problem, you will put together much of what you have learned about Internet protocols. Suppose you walk into a room, connect to Ethernet, and want to download a Web page. What are all the protocol steps that take place, starting from powering on your PC to getting the Web page? Assume there is nothing in our DNS or browser caches when you power on your PC. (Hint: the steps include the use of Ethernet, DHCP, ARP, DNS, TCP, and HTTP protocols.) Explicitly indicate in your steps how you obtain the IP and MAC addresses of a gateway router.

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Answer

Suppose you walk into a room, connect to Ethernet, and want to download a Web page. What are all the protocol steps that take place.

  • PC creates a IP datagram is 255.255.255.255 for  the destination address.
  • Placed datagram in Ethernet frame.
  •  IP packets first-hop router by the IP routes.
  • Router forwards these IP packets to the user PC
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