User Guide
Vigor2910 Series User’s Guide 
86 
The reminder as regards concern about Firewall and UPnP 
Can't work with Firewall Software 
Enabling firewall applications on your PC may cause the UPnP function not 
working properly. This is because these applications will block the accessing 
ability of some network ports. 
Security Considerations 
Activating the UPnP function on your network may incur some security threats. 
You should consider carefully these risks before activating the UPnP function.  
¾  Some Microsoft operating systems have found out the UPnP weaknesses and 
hence you need to ensure that you have applied the latest service packs and 
patches.  
¾  Non-privileged users can control some router functions, including removing 
and adding port mappings.  
The UPnP function dynamically adds port mappings on behalf of some 
UPnP-aware applications. When the applications terminate abnormally, these 
mappings may not be removed. 
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A PC client on LAN can be woken up by the router it connects. When a user wants to wake 
up a specified PC through the router, he/she must type correct MAC address of the specified 
PC on this web page of Wake On LAN of this router. 
In addition, such PC must have installed a network card supporting WOL function. By the 
way, WOL function must be set as “Enable” on the BIOS setting. 










