Dynamic NAT Scenarios | Cisco Systems ASA 5545-X, ASA 5505, ASA 5580

Chapter 6 Configuring NAT (ASA 8.2 and Earlier)

Using Dynamic NAT

Step 2 For a new pool, from the Interface drop-down list, choose the interface where you want to use the mapped IP addresses.

Step 3 For a new pool, in the Pool ID field, enter a number between 1 and 2147483647. Do not enter a pool ID that is already in use, or your configuration will be rejected.

Step 4 In the IP Addresses to Add area, click Range, Port Address Translation (PAT), or PAT Address Translation (PAT) Using IP Address of the interface.

If you specify a range of addresses, the ASA performs dynamic NAT. If you specify a subnet mask in the Netmask field, the value specifies the subnet mask assigned to the mapped address when it is assigned to a host. If you do not specify a mask, then the default mask for the address class is used.

Step 5 Click Add to add the addresses to the Addresses Pool pane.

Step 6 (Optional) You can add multiple addresses to the global pool. If you want to add a PAT address after you configure a dynamic range, for example, then complete the value for PAT and click Add again. See the “Multiple Addresses in the Same Global Pool” section on page 6-20for information about using multiple addresses on the same pool ID for an interface.

Step 7 Click OK.

Configuring Dynamic NAT, PAT, or Identity NAT

Figure 6-19shows typical dynamic NAT, dynamic PAT, and identity NAT scenarios. Only real hosts can initiate connections.

Figure 6-19 Dynamic NAT Scenarios

Dynamic NAT

Security
Appliance
10.1.1.1	209.165.201.1
10.1.1.2	209.165.201.2
Inside	Outside

Dynamic PAT

Security

Appliance

10.1.1.1:1025209.165.201.1:2020

10.1.1.1:1026	209.165.201.1:2021
10.1.1.2:1025	209.165.201.1:2022
Inside	Outside

Identity NAT

Security

Appliance

209.165.201.1	209.165.201.1
209.165.201.2	209.165.201.2
Inside	Outside

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Cisco ASA Series Firewall ASDM Configuration Guide

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ASA Services Module, ASA 5555-X, ASA 5545-X, ASA 5585-X, ASA 5580 specifications

Cisco Systems has long been a leader in the field of network security, and its Adaptive Security Appliance (ASA) series is a testament to this expertise. Within the ASA lineup, models such as the ASA 5505, ASA 5580, ASA 5585-X, ASA 5545-X, and ASA 5555-X stand out for their unique features, capabilities, and technological advancements.

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Cisco Systems ASA 5545-X Configuring Dynamic NAT, PAT, or Identity NAT, Dynamic NAT Scenarios

Models: ASA Services Module ASA 5555-X ASA 5545-X ASA 5585-X ASA 5580 ASA 5505