User's Manual

You can apply up to 8 rules for each direction, inbound or outbound. For each rule you can
define the following:
• Source IP address
• Source port address
• Destination IP address
• Destination port address
• Protocol: TCP or UDP, or both
• Use Rule #
You can define a single IP address (4.3.123.254) or a range of IP addresses (4.3.123.254 –
4.3.2.254) for the source or destination IP address. A blank IP implies that all IP addresses are
included. You can define a single port (80) or a range of ports (1000 – 1999) for the source or
destination port. Specify the TCP or UDP protocol by adding the prefix T or U. Not adding a prefix
implies all ports. Each rule can be enabled or disabled.
7.8.2 | URL Blocking
URL Blocking blocks LAN computers from accessing pre-defined Websites. The difference
between the Domain Filter and URL Blocking is that the Domain filter requires you to enter a
suffix (.com or .org), while URL Blocking requires you to enter only a keyword. In other words,
the Domain Filter can block specific Websites, while URL Blocking can block hundreds of Websites
simply by using a keyword.
• URL Blocking: Check the box next to Enable if you want to enable the URL Blocking
option.
• URL / Keyword: If any part of a Website’s URL matches the pre-defined word you have
entered here, the connection will be blocked. For example, if you type the word “firewall”
into the URL text field, all URLs containing that word will be blocked.
• Enable: Check the box to enable the rules.
• Use Rule #: Applies a configured schedule rule