Cisco ASA 5505 Configuration Manual page 571

Chapter 28 Configuring Twice NAT
c.
Step 9 Click OK.
Configuring Static NAT or Static NAT with Port Translation
This section describes how to configure a static NAT rule using twice NAT. For more information about
static NAT, see the
Detailed Steps
To configure static NAT, perform the following steps:
Choose Configuration > Firewall > NAT Rules, and then click Add.
Step 1
If you want to add this rule to section 3 after the network object rules, then click the down arrow next to
Add, and choose Add NAT Rule After Network Object NAT Rules.
Figure 28-16
The Add NAT Rule dialog box appears.
OL-20339-01
Be sure DNS inspection is enabled (it is enabled by default). You cannot configure DNS
modification if you configure a destination address. See the
for more information.
In the Description field, add a description about the rule up to 200 characters in length.
"Static NAT" section on page
Adding a NAT Rule
"DNS and NAT" section on page 26-21
26-3.
Cisco ASA 5500 Series Configuration Guide using ASDM
Configuring Twice NAT
28-11