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Step 2: Configure Address Translations on Private Networks.
Network Address Translation (NAT) replaces the source IP addresses of network traffic exchanged
between two interfaces on the adaptive security appliance. This translation permits routing through
the public networks while preventing internal IP addresses from being exposed on the public networks.
Port Address Translation (PAT) is an extension of the NAT function that allows several hosts on a
private network to map into a single IP address on the public network. PAT is essential for small and
medium businesses that have a limited number of public IP addresses available to them.
To configure NAT between the inside interface and the DMZ interface for the inside HTTP client,
perform the following steps starting from the main ASDM page:
1. Click Configuration at the top of the ASDM window.
2. Choose the NAT feature on the left side of the ASDM window.
3. Click Translation Rules, and then click Add at the right side of the ASDM page.
4. In the Add Address Translation Rule dialog box, make sure that Use NAT is selected, and then
choose the inside interface.
5. Enter the IP address of the inside client. In this scenario, the IP address is 10.10.10.10.