Cisco Systems ASA 5585-X Manual De Usuario

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Cisco ASA Series Firewall CLI Configuration Guide
 
Chapter 4      Configuring Network Object NAT
  Configuration Examples for Network Object NAT
Single Address for FTP, HTTP, and SMTP (Static NAT-with-Port-Translation)
The following static NAT-with-port-translation example provides a single address for remote users to 
access FTP, HTTP, and SMTP. These servers are actually different devices on the real network, but for 
each server, you can specify static NAT-with-port-translation rules that use the same mapped IP address, 
but different ports. (See 
Figure 4-4
Static NAT-with-Port-Translation
Step 1
Create a network object for the FTP server address:
ciscoasa(config)# object network FTP_SERVER
Step 2
Define the FTP server address, and configure static NAT with identity port translation for the FTP server:
ciscoasa(config-network-object)# host 10.1.2.27
ciscoasa(config-network-object)# nat (inside,outside) static 209.165.201.3 service tcp ftp 
ftp
Step 3
Create a network object for the HTTP server address:
ciscoasa(config)# object network HTTP_SERVER
Step 4
Define the HTTP server address, and configure static NAT with identity port translation for the HTTP 
server:
ciscoasa(config-network-object)# host 10.1.2.28
ciscoasa(config-network-object)# nat (inside,outside) static 209.165.201.3 service tcp 
http http
Host
Outside
Inside
Undo Translation
10.1.2.27
209.165.201.3:21
Undo Translation
10.1.2.28
209.165.201.3:80
Undo Translation
10.1.2.29
209.165.201.3:25
FTP server
10.1.2.27
HTTP server
10.1.2.28
SMTP server
10.1.2.29
1
3
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3
1