Cisco Systems ASA 5580 Manual De Usuario

Descargar
Página de 712
 
3-4
Cisco ASA Series Firewall CLI Configuration Guide
 
Chapter 3      Information About NAT
  NAT Types
 shows a typical static NAT scenario. The translation is always active so both real and remote 
hosts can initiate connections.
Figure 3-1
Static NAT
Note
You can disable bidirectionality if desired.
Information About Static NAT with Port Translation
Static NAT with port translation lets you specify a real and mapped protocol (TCP or UDP) and port. 
This section includes the following topics:
Information About Static NAT with Port Address Translation
When you specify the port with static NAT, you can choose to map the port and/or the IP address to the 
same value or to a different value.
 shows a typical static NAT with port translation scenario showing both a port that is mapped 
to itself and a port that is mapped to a different value; the IP address is mapped to a different value in 
both cases. The translation is always active so both translated and remote hosts can initiate connections. 
Figure 3-2
Typical Static NAT with Port Translation Scenario
10.1.1.1
209.165.201.1
Inside
Outside
10.1.1.2
209.165.201.2
1
3
00
3
5
Security
Appliance
10.1.1.1:23
209.165.201.1:23
Inside
Outside
10.1.1.2:8080
209.165.201.2:80
1
3
0044
Security
Appliance