To select the IP Filter option to configure the URL blocking function for the router.  
 
In this section we can create a new Inbound Filtering rule. 
Enable IP Filters: enable or disable the IP filters function 
Name: Enter the Inbound filtering rule name here. 
Protocol: Select the protocol used from the list. Options to choose from are ANY, 
TCP, UDP, and ICMP. 
Source IP address: Select the source IP address type, it includes: Any IP Address, 
Single IP, and Specify IP address (Range). 
Destination IP address: Select the destination IP address type, it includes: : Any IP 
Address, Single IP, Specify IP address (Range). 
Destination Port: Select the destination port type here. 
 
Click the Apply button to accept the changes made.