Computer Networking First-Step by Wendell Odom

Computer Networking First-Step by Wendell Odom

Author:Wendell Odom [Odom, Wendell]
Language: eng
Format: mobi, pdf
Publisher: Pearson Education
Published: 2004-04-20T16:00:00+00:00


For the rest of this chapter, you'll read about routing and ignore anything after the IP header. However, keep in mind that the whole goal is to deliver application data, as shown in Figure 11-4.

The other dilemma that Hannah faces is that she wants to deliver the packet to R1. Not only does the packet need to get to R1, but R1 needs to think that it should process the packet. As you can see in Figure 11-4, Hannah put her own Ethernet address in the frame as the source address, and she put R1's address as the destination. The fact that Hannah included R1's Ethernet address as the destination is the key to solving her second dilemma. As shown in Figure 11-5, when you send a frame whose destination address is 0200.3333.3333, the frame should be delivered to R1.

Figure 11-5. Using the Ethernet Frame to Deliver the Packet to the Default Router



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