Yamaha RTX810 - Page 95

95
Enhancing security
5
Features of the filter of the
product
Static filter and dynamic filter
The following two types of lters can be congured in the
product. Use advantages of each type together to congure
your settings.
• Static filter: Once this lter has been congured, it is
constantly enabled irrespective of presence of data or
communication.
• Dynamic filter: This lter monitors the communication
status and is enabled on an as-needed basis. For example,
you can congure a setting such as “normally prohibiting
all data from the Internet to LAN, but permitting only
when an access from LAN to ftp occurs”.
When a connection destination is
registered in “Basic configuration
page”, the basic filter is applied
Only by registering a connection destination with “Basic
conguration page”, the following lter is automatically
applied according to the connection type. In addition to
this basic lter, you can add, register, and apply lters if
necessary.
Note
• Security levels and settings are subject to change without
notice.
• If you specify a connection destination using the console, no
lter is registered.
For provider configuration
Seven security levels are dened as lter combination
patterns. When a new provider is registered, the security
level 6 settings are automatically applied. The security level
can be changed at a later time if necessary. (page 96)
Filter number indication
You can use almost unlimited lter function numbers of the
product. In “Basic conguration page”, up to 100 numbers
(0 to 99) can be set for each destination. The following
shows the correspondence between areas and lter numbers
used in “Basic conguration page”.
Assigned area Console command filter
numbers
LAN/WAN port area
100000 - 199999
Connection destination setting area (PP01 -)
200000 - 299999
Filter type routing area
500000 - 599999
Note
• Before changing a lter setting, you should fully understand
the function to assure security.
• Applying too many lters may complicate the processing,
causing the Internet access speed to be slow.