User`s manual

EDR-G903/G902 Features and Functions

3-40

Suppose the user next adds a new policy with the following configuration:

Index Input Output Protocol Source IP Destination IP Target

3 WAN2 LAN All 20.20.20.25 192.168.127.20

to 192.168.127.30

DROP

The source IP range in policy 3 is smaller than policy 2, but the destination IP of policy 2 is smaller than policy

3, and the target actions (Accept/Drop) of these two policies are different. If the user clicks the PolicyCheck

button, the EtherDevice Router will issue a message informing the user that policy [3] is in Cross Conflict with

policy [2].

Denial of Service (DoS) function

The EtherDevice Router provides 9 different DoS functions for detecting or defining abnormal packet format or

traffic flow. The EtherDevice Router will drop the packets when it detects an abnormal packet format. The

EtherDevice Router will also monitor some traffic flow parameters and activate the defense process when

abnormal traffic conditions are detected.

Null Scan