Installation guide

5-23
Advanced Setup
Don’t Care: Specifies no fragment options in the filter
rule.
Unfragmented: Applies the rule to unfragmented pack-
ets.
Fragmented: Applies the rule to fragmented packets.
Too Short: Applies the rule only to packets which are
too short to contain a complete header.
5.6.5 Restricting Unauthorized Internet Services
This section will show a simple example to restrict someone from
accessing WWW services. In this example, we assume the IP ad-
dress of the access-restricted user is 192.168.1.10. The filter rule is
created in the Data Filter set and is shown as below.
Port 80 is the HTTP protocol port number for WWW services.