Chapter 2 Features and Applications

Anti-Virus Scanner

With the anti-virus packet scanner, your ZyWALL scans files transmitting through the enabled interfaces into the network. The ZyWALL helps stop threats at the network edge before they reach the local host computers.

Anti-Spam

The anti-spam feature can mark or discard spam. Use the white list to identify legitimate e-mail. Use the black list to identify spam e-mail. The ZyWALL can also check e-mail against a DNS black list (DNSBL) of IP addresses of servers that are suspected of being used by spammers.

Application Patrol

Application patrol (App. Patrol) manages instant messenger (IM), peer-to-peer (P2P) applications like MSN and BitTorrent. You can even control the use of a particular application’s individual features (like text messaging, voice, video conferencing, and file transfers). Application patrol has powerful bandwidth management including traffic prioritization to enhance the performance of delay- sensitive applications like voice and video. You can also use an option that gives SIP priority over all other traffic. This maximizes SIP traffic throughput for improved VoIP call sound quality.

2.2 Applications

These are some example applications for your ZyWALL. See also Chapter 7 on page 109 for configuration tutorial examples.

 

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ZyWALL USG 50 User’s Guide