CHAPTER
17-1
Cisco Security Appliance Command Line Configuration Guide
OL-10088-01
17
Applying NAT
This chapter describes Network Address Translation (NAT). In routed firewall mode, the security
appliance can perform NAT between each network.
Note In transparent firewall mode, the security appliance does not support NAT.
This chapter contains the following sections:
• NAT Overview, page 17-1
• Configuring NAT Control, page 17-15
• Using Dynamic NAT and PAT, page 17-16
• Using Static NAT, page 17-25
• Using Static PAT, page 17-26
• Bypassing NAT, page 17-28
• NAT Examples, page 17-32
NAT Overview
This section describes how NAT works on the security appliance, and includes the following topics:
• Introduction to NAT, page 17-2
• NAT Control, page 17-3
• NAT Types, page 17-5
• Policy NAT, page 17-9
• NAT and Same Security Level Interfaces, page 17-12
• Order of NAT Commands Used to Match Real Addresses, page 17-13
• Mapped Address Guidelines, page 17-13
• DNS and NAT, page 17-14
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