SonicWALL 3 manual Configuring the DMZ Interface, Configuring NAT Mode, Select OPT in NAT Mode

Configuring the DMZ Interface

Configuring NAT Mode

NAT Enabled mode gives the OPT interface a single IP address and a subnet of available IP address. The IP addresses of devices connecting to the OPT interface are translated to the single OPT interface IP address.

1 Click the Edit Icon	in the line for the OPT interface in the Interfaces table. The OPT Properties
window displays.

2Select OPT in NAT Mode.

3Enter an IP address in the OPT Private Address field.

4Enter the subnet mask in the OPT Subnet Mask field.

5If you want to use the OPT interface as a DMZ, enter a publicly visible IP address in the DMZ NAT Many-to-One Public Address field. This address will be visible to the internet for public servers in your network.

6Click OK.

Configuring the DMZ Interface

You can configure the DMZ interface in either Transparent Mode or NAT Mode:

•Transparent Mode enables the SonicWALL security appliance to bridge the DMZ subnet onto the WAN interface. It requires valid IP addresses for all computers connected to the DMZ interface on your network, but allows remote access to authenticated users. You can use the DMZ interface in Transparent mode for public servers and devices with static IP addresses you want visible outside your SonicWALL security appliance-protected network.

•NAT Mode translates the private IP addresses of devices connected to the DMZ interface to a sin- gle, static IP address.

SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE 73