Chapter 8 - Configuring SonicWALL UTM Gateway Appliances

Abstract

The foundation of the secure wireless network is the SonicWALL UTM appliance, functioning as both a gateway and a UTM firewall. This chapter introduces the SonicOS management interface and guides through the process of configuring basic connectivity for the SonicWALL UTM appliance and then configuring security services that use SonicWALL's Deep Packet Inspection engine to protect the network. The SonicOS Web management interface provides an intuitive, easy-to-use graphical interface for configuring SonicWALL UTM appliances and SonicPoints. The SonicOS Setup Wizard quickly guides through the process of configuring basic network connectivity. Once the SonicWALL UTM appliance is online, but before deploying it to the production environment, one needs to license and configure the UTM security services to protect the network. SonicWALL security services can be customized for the different zones of the network to provide the appropriate level of protection for different types of network traffic. The SonicWALL UTM appliance provides UTM security services without the need for any modification to the existing network configuration. Two advanced configuration options that are available on SonicWALL NSA appliances, namely, Layer 2 Bridge mode and High Availability, are introduced. Layer 2 Bridge mode allows the SonicWALL UTM appliance to be seamlessly integrated into an existing network. High Availability is an advanced feature that deploys a second SonicWALL NSA appliance as a backup that can perform stateful synchronization for seamless failover in case the primary appliance goes down. By the end of the chapter, the users will have configured secure wired access to the network.