Refer to the exhibit. How many interfaces on R1 should be configured as ip nat inside to grant external access to the entire network?

The correct answer is C. 4. NAT requires every interface to be labeled either 'ip nat inside' (facing the private/internal network) or 'ip nat outside' (facing the public/Internet). The exhibit shows R1 connected to 4 internal LAN segments (e.g., four LAN-facing interfaces - typically one per directly…

Implement Wide-Area Networks

Question

Refer to the exhibit. How many interfaces on R1 should be configured as ip nat inside to grant external access to the entire network?

Options

How the community answered

(35 responses)

A
9% (3)
B
14% (5)
C
74% (26)
D
3% (1)

Explanation

NAT requires every interface to be labeled either 'ip nat inside' (facing the private/internal network) or 'ip nat outside' (facing the public/Internet). The exhibit shows R1 connected to 4 internal LAN segments (e.g., four LAN-facing interfaces - typically one per directly connected subnet or switch). All four of those must be marked 'ip nat inside' so that traffic originating from any of those networks is eligible for translation. Only the single uplink interface facing the ISP/Internet is configured as 'ip nat outside'. If any inside interface is left unconfigured, hosts on that segment will not have their addresses translated and will not reach the Internet.

Topics

#NAT#ip nat inside#interface configuration#address translation

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