Chapter 3. Introducing Switching, Routing, and Address Translation

Introducing Switching, Routing, and Address Translation
<feature><title>Chapter Goals</title>

This Chapter introduces the reader to TCP/IP routing and switching. The following topics are covered:

<objective>

Layer 2 Switching—Learn how Ethernet frames are switched by LAN switches.

</objective>
<objective>

Layer 3 Routing—Learn how IP packets are routed by routers.

</objective>
<objective>

Layer 3 Switching—Learn how IP packets are switched by routers.

</objective>
<objective>

Layer 3–4 Network Address Translation—Learn how TCP segments and IP packets are translated by NAT-capable devices.

</objective>
</feature>

In Chapter 2, “Exploring the Network ...

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