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Billion 400G
Router
Chapter 4: Configuration
58
URL Filter
URL (Uniform Resource Locator – e.g. an address in the form of http://www.abcde.com or http://www.example.com)
filter rules allow you to prevent users on your network from accessing particular websites by their URL. There are no
pre-defined URL filter rules; you can add filter rules to meet your requirements.
Enable/Disable: To enable or disable URL Filter feature.
Block Mode: A list of the modes that you can choose to check the URL filter rules. The default is set to Always On.
Disabled: No action will be performed by the Block Mode.
Always On: Action is enabled. URL filter rules will be monitoring and checking at all hours of the day.
TimeSlot1 ~ TimeSlot16: T
hese
are
user-defined
time
periods. You
may
specify
the
time period
during
which
the
URL
filter
rules
apply,
i.e.
during
working
hours.
For
setup
and
details, refer
to
Time
Schedule
section.
Keywords Filtering: Allows blocking by specific keywords within a particular URL rather than having to specify a
complete URL (e.g. to block any image called “advertisement.gif”). When enabled, your specified keywords list will
be checked to see if any keywords are present in URLs accessed to determine if the connection attempt should be
blocked. Please note that the URL filter blocks web browser (HTTP) connection attempts using port 80 only.
For example, if the URL is http://www.abc.com/abcde.html, it will be dropped as the keyword “abcde” occurs in the
URL.
Domains Filtering: This function checks the whole URL not the IP address, in URLs accessed against your list of
domains to block or allow. If it is matched, the URL request will be sent (Trusted) or dropped (Forbidden). For this
function to be activated, both check-boxes must be checked. Here is the checking procedure:
1.
The
router
checks
the
domain
in
the
URL
to
determine
if
it
is
in
the
trusted
list.
If
it
is,
then
the
connection
attempt
is
sent
to
correct
the
remote
web
server.