TeleWell TW-EA510v3(c) 3G/4G, User Manual

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5.3.4.5 URL Filter
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 is checked to see if any keywords are present in URLs
accessed to determine if the connection attempt should be blocked. Note that the URL filter
blocks web browser (HTTP) connection attempts using port 80 only.
For example, the URL http://www.abc.com/abcde.html would be dropped since the keyword
“abcde” occurs in the URL.
Domains Filtering: Checks the domain name in URLs accessed against your list of domains to
block or allow. If it matches, the URL request is sent (Trusted) or dropped (Forbidden). The
checking procedure is:
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, it is checked with the forbidden list. If present, the connection attempt is dropped.
3. If the packet matches neither of the above, 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”