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Firewall > Advance
Block SynFlood: SynFlood is a virus that sends multiple Syn packets to a host, occupying a
large memory space of the Router. To prevent this, check this option.
Block Java: Some Java applications embedded in the web pages may be harmful to the
computer system. You can check this to block these Java files or scripts. However, do take note
that some web pages that requires java files might not function properly when this option is
checked.
Block ActiveX: ActiveX is a tool for building active web pages. When you visit an ActiveX web
page, ActiveX controls are downloaded to your browser, in case you visit the site again. You can
block these ActiveX controls by checking this option. However, do take note that some ActiveX
web pages might not function properly when this option is checked.
Block Cookies: Many web services use cookies track usage and authenticate users. These
cookies are stored in your browser in case you visit the site again. You can block these cookies
by checking this option.
Block Proxy: Check this to block Proxy. If your network requires a proxy server, it would affect
your Internet connection.
Disable Web Access from WAN: This feature prevent anyone from accessing the Router’s
configuration page from the WAN port. For security reason, it is best to keep this option check.
Flux Shaping: Forwarding broadcast or multicast packets can lead to severe storms of packets,
and if uncontrolled could lead to network overload. To prevent this from happening, user can set
the maximum number of packets or bytes of flux which router forward from Wan to Lan per
second.
Note : All these blocking securities are against virus attacks to your system but some websites
may need these tools and need to be enabled to access the websites.