Huawei DR814Q Benutzerhandbuch

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User Manual 
Aolynk DR814Q ADSL2+ Broadband Router 
5  Advanced Configuration
 
46 
Delete the settings that forbid external hosts to ping the WAN port of the DR814Q. Note 
that the protocol type of ping is ICMP. 
 
Figure 5-8 Configure port filtering policy – delete the settings 
Add settings that permit external hosts to ping the WAN port of the DR814Q. 
 
Figure 5-9 Configure port filtering policy – add new settings 
 
  Caution: 
Any request mismatching no filtering policy will be blocked by the firewall. 
 
5.2.3  Trigger 
A trigger is used to deal with application protocols that set up separate sessions. Some 
application protocols, such as NetMeeting, open the primary sessions and secondary 
connections at the same time during the normal operations. The trigger tells the 
security mechanism to handle these secondary sessions and instruct it how to handle 
them. The trigger handles the situation dynamically, allowing the secondary sessions 
only when appropriate. These newly triggered sessions are not restricted by the 
firewall. 
Click the [Trigger] tab in the security setup page to enter the corresponding page shown 
 
Figure 5-10 Trigger settings