Wireless Modem Router  
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Choose Add to enter the following screen: 
 
 
This screen allows you to create a filter rule to identify outgoing IP traffic by specifying a new filter name and at  least 
one condition below. All of the specified conditions in this filter rule must be satisfied for the rule to take effect. Click 
'Apply/Save' to save and activate the filter. 
 
Filter Name: Enter a descriptive filtering name. 
IP Version: Select either IPv4 or IPv6. 
Protocol: TCP/UDP, TCP, UDP and ICMP are available  for your option. 
Source IP address [/prefix length]: Enter the LAN IP address to be filtered. 
Source Port (port or port: port): Specify a port number or a  range of ports used by LAN PCs to access Internet. If you 
are unsure, leave it blank.   
Destination IP address [/prefix length]: Specify the external network IP address to be accessed by specified LAN PCs. 
Destination Port  (port or port:port):  Specify  a  port  number or  a  range  of ports  used  by  LAN  PCs  to  access  external 
network. 
Incoming IP Filtering Setup 
When  the  firewall  is  enabled  on  a  WAN  or  LAN  interface,  all  incoming IP  traffic  is  BLOCKED.  However,  some IP 
traffic can be ACCEPTED  by setting up filters. 
Choose Add or Remove to configure incoming IP filters.