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NAT configuration

 

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Q10. Which interface configuration command enables NAT for an interface on the router that connects to the inside network?

A. ip nat inside

B. ip nat outside

C. ip nat inside source static <local ip> <global ip>

D. ip nat inside source list <access-list-number> pool <name>

  Correct Answer: A

 

Explanation:

When you are configuring NAT, NAT should be enabled on at least one inside and one outside interface. The command for enabling NAT on inside interface is:
R(config-if)# ip nat inside
The command for enabling NAT on the outside interface is:
R(config-if)# ip nat outside
Remember to enter into appropriate configuration modes before entering the commands. Usually, the inside NAT will be configured on an Ethernet interface, whereas the outside NAT is configured on a serial interface.
The command
ip nat inside source static <local ip> <global ip>
configures address translation for static NAT.
The command
ip nat inside source list <access-list-number> pool <name>
is used to map the access-list to the IP NAT pool during the configuration of Dynamic NAT.

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