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（2）Shock Wave and Worm Virus Prevention
Since many users have been attacked by Shock Wave and Worm viruses recently, the internet
transmission speed was brought down and the Session bulky increase result in the massive processing load
of the device. The following guides users to block this virus' corresponding port for prevention.
a. Add this TCP135-139, UDP135-139 and TCP445 Port.
b. Use the "Access Rule" in the firewall and set to block these three ports.
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