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Difficulty: MediumInside Source NAT and PAT Configuration and Verification

A network administrator needs to verify the operational summary of Network Address Translation (NAT) on a Cisco IOS router, including active translation totals, hit/miss counters, expired translations, and dynamic pool usage. Which Cisco IOS EXEC command displays these summary statistics?

Answer: show ip nat statistics / show ip nat statistic

Answer

The correct command is show ip nat statistics.
The show ip nat statistics command provides a summary view of NAT operations on a Cisco IOS router. It displays the total number of active translation entries, the count of inside and outside interfaces, memory allocation, pool configuration ranges, and hit/miss counters.

Step-by-Step Solution

1
Identify the required NAT verification output
The requirement calls for operational summary metrics such as total active translations, hit/miss counts, and pool allocations rather than individual translation table entries.
Different EXEC commands serve distinct verification purposes in Cisco IOS.
2
Determine the appropriate Cisco IOS EXEC command
The command show ip nat statistics provides the summary metrics, interface designations, and pool configurations.
The show ip nat translations command lists active dynamic/static mappings, whereas show ip nat statistics summarizes overall NAT health and performance.

Key Concept

Cisco IOS NAT/PAT Verification Commands
Estimated Time:1m 0s
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Topics

Inside Source NAT and PAT Configuration and Verification

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