SonicWALL manual SonicWALL NSA 5000/4500/3500 Getting Started Guide

Before configuring NAT Policies, you must create all Address Objects associated with the policy. For instance, if you are creating a One-to-One NAT policy, first create Address Objects for your public and private IP addresses.

Address Objects are one of four object classes (Address, User, Service and Schedule) in SonicOS Enhanced. These Address Objects allow for entities to be defined one time, and to be re- used in multiple referential instances throughout the SonicOS interface. For example, take an internal Web server with an IP address of 67.115.118.80. Rather than repeatedly typing in the IP address when constructing Access Rules or NAT Policies, Address Objects allow you to create a single entity called “My Web Server” as a Host Address Object with an IP address of 67.115.118.80. This Address Object, “My Web Server”, can then be easily and efficiently selected from a drop-down menu in any configuration screen that employs Address Objects as a defining criterion.

Since there are multiple types of network address expressions, there are currently the following Address Objects types:

•Host – Host Address Objects define a single host by its IP address.

•Range – Range Address Objects define a range of contiguous IP addresses.

•Network – Network Address Objects are like Range objects in that they comprise multiple hosts, but rather than being bound by specified upper and lower range delimiters, the boundaries are defined by a valid netmask.

•MAC Address – MAC Address Objects allow for the identification of a host by its hardware address or MAC (Media Access Control) address.

•FQDN Address – FQDN Address Objects allow for the identification of a host by its Fully Qualified Domain Names (FQDN), such as www.sonicwall.com.

SonicOS Enhanced provides a number of Default Address Objects that cannot be modified or deleted. You can use the Default Address Objects when creating a NAT policy, or you can create custom Address Objects to use. All Address Objects are available in the drop-down lists when creating a NAT policy.

SonicWALL NSA 5000/4500/3500 Getting Started Guide Page 41