Cisco CCNA mock exam questions sample test – Question 398

.Which of the following features is used with the ip nat inside command to translate multiple devices in the internal network to the single address in the IP address pool?

A. static
B. override
C. overload
D. dynamic


Correct Answer: C

Explanation:
The overload keyword, when specified with the ip nat inside command, translates multiple devices in the internal network to a single address in the IP address pool.
For example:
ip nat pool test 172.28.15.1 172.28.15.1 prefix 24
In this example, the NAT pool named “test” only has a range of one address. Another variation of this command is as follows:
ip nat inside source list 3 interface serial 0 overload
This command configures NAT to overload on the address assigned to the serial 0 interface.
When this variation is used, the command uses a list named 3 to determine the addresses in the pool
With static NAT, translation mappings are created statically and are placed in the translation tables regardless of whether there is traffic flowing.
With dynamic NAT, the translation mappings table is populated as the required traffic flows through NAT-enabled devices.
Override is not a valid NAT option. There is no such option.
Objective:
Infrastructure Services
Sub-Objective:
Configure, verify, and troubleshoot inside source NAT
References:
Cisco > Technology Support > IP > IP Routing > Design Technotes > Configuring Network Address Translation: Getting Started > Document ID: 13772 > Quick Start Steps for
Configuring and Deploying NAT