Draytek Vigor2762 series, Руководство пользователя

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V-2 CSM (Central Security Management)
V-2 CSM (Central Security Management)
CSM is an abbreviation of Central Security Management which is used to control IM/P2P
usage, filter the web content and URL content to reach a goal of security management.
APP Enforcement Filter
APP Enforcement Filter
As the popularity of all kinds of instant messenger application arises, communication cannot
become much easier. Nevertheless, while some industry may leverage this as a great tool to
connect with their customers, some industry may take reserved attitude in order to reduce
employee misusage during office hour or prevent unknown security leak. It is similar
situation for corporation towards peer-to-peer applications since file-sharing can be
convenient but insecure at the same time. To address these needs, we provide CSM
functionality.
URL Content
URL Content
Filter
Filter
To provide an appropriate cyberspace to users, Vigor router equips with URL Content Filter
not only to limit illegal traffic from/to the inappropriate web sites but also prohibit other
web feature where malicious code may conceal.
Once a user type in or click on an URL with objectionable keywords, URL keyword blocking
facility will decline the HTTP request to that web page thus can limit user’s access to the
website. You may imagine URL Content Filter as a well-trained convenience-store clerk
who won’t sell adult magazines to teenagers. At office, URL Content Filter can also provide
a job-related only environment hence to increase the employee work efficiency. How can
URL Content Filter work better than traditional firewall in the field of filtering? Because it
checks the URL strings or some of HTTP data hiding in the payload of TCP packets while
legacy firewall inspects packets based on the fields of TCP/IP headers only.
On the other hand, Vigor router can prevent user from accidentally downloading malicious
codes from web pages. It’s very common that malicious codes conceal in the executable
objects, such as ActiveX, Java Applet, compressed files, and other executable files. Once
downloading these types of files from websites, you may risk bringing threat to your system.
For example, an ActiveX control object is usually used for providing interactive web feature.
If malicious code hides inside, it may occupy user’s system.
Web Content
Web Content
Filter
Filter
We all know that the content on the Internet just like other types of media may be
inappropriate sometimes. As a responsible parent or employer, you should protect those in
your trust against the hazards. With Web filtering service of the Vigor router, you can
protect your business from common primary threats, such as productivity, legal liability,
network and security threats. For parents, you can protect your children from viewing adult
websites or chat rooms.
Once you have activated your Web Filtering service in Vigor router and chosen the
categories of website you wish to restrict, each URL address requested (e.g.www.bbc.co.uk)
will be checked against our server database. This database is updated as frequent as daily
by a global team of Internet researchers. The server will look up the URL and return a
category to your router. Your Vigor router will then decide whether to allow access to this
site according to the categories you have selected. Please note that this action will not
introduce any delay in your Web surfing because each of multiple load balanced database
servers can handle millions of requests for categorization.
Info The priority of URL Content Filter is higher than Web Content Filter.
Vigor2762 Series User’s Guide 259