User`s guide
 User’s Guide     
46 
 Uncheck “Enable” to disable ActiveX filter. 
• Filter Popup Windows 
 Check “Enable” to enable Popup Windows filter. 
 Uncheck “Enable” to disable Popup Windows filter 
• Block Fragmented IP Packets 
 Check “Enable” to enable blocking Fragmented IP Packets. 
 Uncheck “Enable” to disable blocking Fragmented IP Packets. 
"With this feature enabled, all packets are checked to determine if the packet contains a "fragment" 
flag. If the flag exists, the CM will discard the packet. This feature is used primarily to protect against 
any intruders/hackers from gaining access to the router or network."  "Under certain conditions, this 
feature may cause communication issues with other devices on the network and should be disabled. For 
example, streaming media applications may fragment the packets depending on the encoding used for 
the video stream. Depending on the encoding used for the clip, some or a majority of the packets will 
become fragmented. For clips encoded at 300 Kbps, 66% of the packets are IP fragments, while below 
100 Kbps there is no fragmentation.  
• Firewall Protection 
 Check “Enable” to enable Firewall Protection. 
 Uncheck “Enable” to disable Firewall Protection. 
• Access Routed Subnet Protection 
 Check “Enable” to enable Routed Subnet Protection. 
 Uncheck “Enable” to disable Routed Subnet Protection. 
• Apply 
  Any configuration changes must be followed by “Apply” before changes will occur. 
• Trusted Computers - Add 
  Specify MAC address for trusted computer and click “Add” to add it to the list. 
• Trusted Computers - Remove 
  Select MAC address from trusted computer list and click “Remove” to remove it from the list. 










