Firewall
Dlink DRO-210i User Guide 43
After entering all the information press the Apply button and the status table will now be
displayed at the bottom of the page. Press View button for viewing and Delete button for
deleting the corresponding entry.
The different types of Web Filters in the firewall are
Java Filter
Cookie Filter
ActiveX Filter
Keyword Filter
File extension Filter
Java Filter
Java at runtime could allow the attacker to run harmful code on the victim’s computer.
Java Plug-in enables small web programs such as applets to run on the user’s computer.
A malicious webpage can run a malicious code without the user’s knowledge. By
Enabling the Java Filter, such Java related attacks can be prevented.
Cookie Filter
Cookies are merely text files that are placed on a user's computer by Web sites that the
user visits. Cookies can be used to gain information about the surfer. Cookies are not
spyware. They cannot run Trojan horse or any other malicious code on the user’s
computer but can provide confidential information about users to others. By enabling the
Cookie Filter, the user can prevent the Cookie based attacks.
ActiveX Filter
The name "ActiveX" is sometimes used as a synonym for COM (Component Object
Model), and sometimes as a general term for Microsoft's component s trategy. “ActiveX"
specifically means the technology that downloads and runs controls in one of the formats
supported by the "Authenticode" code signing system. This corresponds to controls that
can be declared from a web page using an OBJECT tag, and currently includes:
COM controls (file types .DLL and .OCX)
Win32 executable files (file type .EXE)
INF set-up files, used to specify locations and versions for a collection of other
files (file type .INF)
"cabinet" files that are referred to by an OBJECT tag (file type .CAB)
By enabling the ActiveX Filter, the attacks related to ActiveX can be prevented.