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3. Test the firewall.
4. Set the firewall to Enabled.
The following sections first describe configuration in general, and
then give an example of a common firewall configuration.
5.6.4.1 Default policies
The default policies allow you to accept or block all traffic for each
traffic chain (direction). The directions are:
˙
Input: all traffic with the Access Point as destination.
˙
Output: all traffic with the Access Point as origin.
˙
Forward: all traffic between LAN and WAN that passes through
the Access Point to another destination.
Figure 5-1 Traffic directions
For each of these directions you can select one of these settings:
˙
Accept sends the traffic through;
˙
Discard blocks the traffic.
5. Once you have set the default policies, click Apply.
5.6.4.2 Rules
A rule consists of a set of conditions that describe what the packet
must look like, and a target: a description of what to do with these
packets.
The conditions you can specify are:
˙
the traffic chain:
the direction in which the traffic flows through the Access Point
˙
the source and destination IP address
˙
the source and destination port number
˙
for TCP traffic: flags.
These are settings within the packet that define the packet’s
