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CCNA® Cisco Certified Network Associate: Study Guide, Seventh Edition by Todd Lammle

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Types of Network Address Translation

In this section, I’m going to go over the three types of NAT with you:

Static NAT This type of NAT is designed to allow one-to-one mapping between local and global addresses. Keep in mind that the static version requires you to have one real Internet IP address for every host on your network.

Dynamic NAT This version gives you the ability to map an unregistered IP address to a registered IP address from out of a pool of registered IP addresses. You don’t have to statically configure your router to map each inside address to an individual outside address as you would using static NAT, but you do have to have enough real, bona-fide IP addresses for everyone who’s going to be sending packets to and receiving ...

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