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Cisco ASA Series Firewall CLI Configuration Guide
DNS Server and FTP Server on Mapped Interface, FTP Server is Translated (Static NAT with DNS
Modification)
4-25
IPv4 DNS Server and FTP Server on Mapped Interface, IPv6 Host on Real Interface (Static NAT64 with
DNS64 Modification)
4-26
Feature History for Network Object NAT 4-28
CHAPTER
5 Configuring Twice NAT 5-1
Information About Twice NAT 5-1
Licensing Requirements for Twice NAT 5-2
Prerequisites for Twice NAT 5-2
Guidelines and Limitations 5-2
Default Settings 5-4
Configuring Twice NAT 5-4
Adding Network Objects for Real and Mapped Addresses 5-4
(Optional) Adding Service Objects for Real and Mapped Ports 5-6
Configuring Dynamic NAT 5-7
Configuring Dynamic PAT (Hide) 5-11
Configuring Static NAT or Static NAT-with-Port-Translation 5-18
Configuring Identity NAT 5-21
Configuring Per-Session PAT Rules 5-24
Monitoring Twice NAT 5-24
Configuration Examples for Twice NAT 5-25
Different Translation Depending on the Destination (Dynamic PAT) 5-25
Different Translation Depending on the Destination Address and Port (Dynamic PAT) 5-27
Feature History for Twice NAT 5-29
PART
3 Configuring Access Control
CHAPTER
6 Configuring Access Rules 6-1
Information About Access Rules 6-1
General Information About Rules 6-2
Implicit Permits 6-2
Information About Interface Access Rules and Global Access Rules 6-2
Using Access Rules and EtherType Rules on the Same Interface 6-2
Implicit Deny 6-3
Inbound and Outbound Rules 6-3
Transactional-Commit Model 6-4
Information About Extended Access Rules 6-5