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settings before using them: with the firewall it is possible to
block all traffic on the network, making it unusable. To test the
settings, click Test Settings.
The firewall will be activated for 15 seconds. If you can reach
the Access Point, you’ll see a new Web page that allows you to
activate the firewall. If the settings you made are so restrictive
that you can’t reach the Access Point, you won’t see this page.
Wait for the firewall to switch off, and change the settings so you
can reach the Access Point.
This test only makes sure you can reach the Access Point. The
test result doesn’t say anything about other traffic types.
5.6.4.4 Example: limit management access to the Access Point
In this example, the firewall is used to limit management access
(i.e. access to the web interface, for changing the configuration).
To do this, you need two rules:
˙
one to limit access to the web interface (via HTTP)
˙
one to limit access via SNMP. The Simple Network
Management Protocol is a standard for managing network
components. The Access Point can be configured via SNMP.
These are the rules:
˙
i10: incoming HTTP (tcp/80) traffic is only allowed from IP
address 192.168.10.254:
