Datasheet

Lab – Configuring Dynamic and Static NAT
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Peak translations: 2, occurred 00:02:12 ago
Outside interfaces:
Serial0/0/1
Inside interfaces:
GigabitEthernet0/1
Hits: 39 Misses: 0
CEF Translated packets: 39, CEF Punted packets: 0
Expired translations: 3
Dynamic mappings:
Total doors: 0
Appl doors: 0
Normal doors: 0
Queued Packets: 0
Note: This is only a sample output. Your output may not match exactly.
Part 3: Configure and Verify Dynamic NAT
Dynamic NAT uses a pool of public addresses and assigns them on a first-come, first-served basis. When an
inside device requests access to an outside network, dynamic NAT assigns an available public IPv4 address
from the pool. Dynamic NAT results in a many-to-many address mapping between local and global
addresses.
Step 1: Clear NATs.
Before proceeding to add dynamic NATs, clear the NATs and statistics from Part 2.
Gateway# clear ip nat translation *
Gateway# clear ip nat statistics
Step 2: Define an access control list (ACL) that matches the LAN private IP address range.
ACL 1 is used to allow 192.168.1.0/24 network to be translated.
Gateway(config)# access-list 1 permit 192.168.1.0 0.0.0.255
Step 3: Verify that the NAT interface configurations are still valid.
Issue the show ip nat statistics command on the Gateway router to verify the NAT configurations.
Gateway# show ip nat statistics
Total active translations: 1 (1 static, 0 dynamic; 0 extended)
Peak translations: 0
Outside interfaces:
Serial0/0/1
Inside interfaces:
FastEthernet0/1
Hits: 0 Misses: 0
CEF Translated packets: 0, CEF Punted packets: 0
Expired translations: 0
Dynamic mappings:
Total doors: 0