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How to configure the AT-AR450S Firewall using the Graphical User Interface (GUI) 11

C613-16011-00 REV A

13 February 2004

Note that you can specify different NAT features for each of the IP interfaces within an

interface group. For example, the VLAN5 interface, within the LAN group, can have

enhanced NAT applied to it, and the VLAN2 interface, also within the LAN group, could

have static NAT applied to it.

Types of NAT you can configure

You are able to configure the following NAT types using the GUI:

■ Enhanced NAT, which maps all the hosts connected to a particular IP interface to the

the global address on a WAN interface.

■ Static Standard NAT, which maps the IP address of a single device in your LAN to the

global address on a WAN interface. For this option, select Standard and enter into

the LAN static IP address field the IP address of a device on the private LAN.

■ Dynamic Standard NAT, which allows all the devices on a particular LAN to use the

global address on a WAN interface. For this option, select Standard and leave the

LAN Static IP Address blank.

Note that only one LAN device can use the globally-unique IP address at a time.

Figure 11: An example of a NAT configuration using all of the available options described above

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