Cisco Systems ASA 5585-X Manual De Usuario

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Cisco ASA Series Firewall CLI Configuration Guide
 
Chapter 5      Configuring Twice NAT
  Configuration Examples for Twice NAT
Configuration Examples for Twice NAT
This section includes the following configuration examples:
Different Translation Depending on the Destination (Dynamic PAT)
 shows a host on the 10.1.2.0/24 network accessing two different servers. When the host 
accesses the server at 209.165.201.11, the real address is translated to 209.165.202.129:port. When the 
host accesses the server at 209.165.200.225, the real address is translated to 209.165.202.130:port.
Figure 5-1
Twice NAT with Different Destination Addresses
Step 1
Add a network object for the inside network:
ciscoasa(config)# object network myInsideNetwork
ciscoasa(config-network-object)# subnet 10.1.2.0 255.255.255.0
Step 2
Add a network object for the DMZ network 1:
ciscoasa(config)# object network DMZnetwork1
ciscoasa(config-network-object)# subnet 209.165.201.0 255.255.255.224
Step 3
Add a network object for the PAT address:
ciscoasa(config)# object network PATaddress1
ciscoasa(config-network-object)# host 209.165.202.129
Server 1
209.165.201.11
Server 2
209.165.200.225
DMZ
Inside
10.1.2.27
10.1.2.0/24
1
3
00
3
9
209.165.201.0/27
209.165.200.224/27
Translation
209.165.202.129
10.1.2.27
Translation
209.165.202.130
10.1.2.27
Packet
Dest. Address:
209.165.201.11
Packet
Dest. Address:
209.165.200.225