Consider the following configuration: Which addresses will be translated by NAT?

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Consider the following configuration:

R2(config)# ip nat pool nat-pool1 209.165.200.225 209.165.200.240 netmask 255.255.255.0
R2(config)# ip nat inside source list 1 pool nat-pool1
R2(config)# interface serial0/0/0
R2(config-if)# ip address 10.1.1.2 255.255.255.252
R2(config-if)# ip nat inside
R2(config-if)# exit
R2(config)# interface serial0/1/0
R2(config-if)# ip address 209.165.200.1 255.255.255.224
R2(config-if)# ip nat outside
R2(config-if)# exit
R2(config)# access-list 1 permit 192.168.0.0 0.0.0.31

Which addresses will be translated by NAT?

10.1.1.2 to 10.1.1.255
192.168.0.0 to 192.168.0.255
192.168.0.0 to 192.168.0.31
209.165.200.240 to 209.165.200.255
Only host 10.1.1.2
Only host 209.165.200.255

Explanation: The access-list determines what IP addresses can be translated. With a wildcard of 0.0.0.31, the first 27 bits have to match. Write 192.168.0.0 in binary and draw a line after the first 27 bits. If you place all 0s after the line, you get the first number translated (192.168.0.0). Then place all 1s to the right of the line and determine that IP address to determine the last number translated (192.168.0.31).

Exam with this question: CCNA 2 v5 Chapter 11: Check Your Understanding Questions Answers