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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
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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. Check the domain in the URL to determine if it is in the trusted list. If yes, the connection attempt
is sent to the remote web server.
2. If not, check if it is listed in the forbidden list. If yes, then the connection attempt will be
dropped.
3. If the packet does not match either of the above two items, it is sent to the remote web server.
4. Please be note that the completed URL, “www” + domain name shall be specified. For example
to block traffic to www.google.com.au, enter “www.google” or “www.google.com”
In the example below, the URL request for www.abc.com will be sent to the remote web server because it
is listed in the trusted list, whilst the URL request for www.google or www.google.com will be dropped,
because www.google is in the forbidden list.
Example: Andy wishes to disable all WEB traffic except for ones listed in the trusted domain, which
would prevent Bobby from accessing other web sites. Andy selects both functions in the Domain
Filtering and thinks that it will stop Bobby. But Bobby knows this function, Domain Filtering, ONLY
disables all WEB traffic except for Trusted Domain, BUT not its IP address. If this is the situation,
Block surfing by IP address function can be handy and helpful to Andy. Now, Andy can prevent Bobby
from accessing other sites.
Restrict URL Features: This function enhances the restriction to your URL rules.
Block Java Applet: This function can block Web content that includes the Java Applet. It is to
prevent someone who wants to damage your system via standard HTTP protocol.
Block surfing by IP address: Preventing someone who uses the IP address as URL for
skipping Domains Filtering function. Activates only and if Domain Filtering enabled.