Netgear UTM25-100NAS Reference Manual - Page 165

Chapter 6 Content Filtering and Optimizing Scans This chapter describes how to apply the content filtering features of the UTM and how to optimize scans to protect your network. This chapter contains the following sections: • "About Content Filtering and Scans" on this page. • "Configuring E-mail Protection" on page 6-3. • "Configuring Web and Services Protection" on page 6-19. • "Setting Web Access Exceptions and Scanning Exclusions" on page 6-41. About Content Filtering and Scans The UTM provides very extensive Web content and e-mail content filtering options, Web browsing activity reporting, e-mail anti-virus and anti-spam options, and instant alerts via e-mail. You can establish restricted Web access policies that are based on the time-of-day, Web addresses, and Web address keywords. You can also block Internet access by applications and services, such as instant messaging and peer to peer file sharing clients. Note: Traffic that passes on the UTM's VLANs and on the secondary IP addresses that you have configured on the LAN Multi-homing screen (see "Configuring MultiHome LAN IPs on the Default VLAN" on page 4-11) is also scanned for content and malware threats. Note: For information about how to monitor blocked content and malware threats in realtime, see "Monitoring Real-Time Traffic, Security, and Statistics" on page 11-14. For information about how to view blocked content and malware threats in the logs, see "Querying Logs and Generating Reports" on page 11-32. 6-1 v1.0, September 2009