by the server or Internet applications. 
  LAN  IP:  Enter  an  IP address  of  the  computer  to work  as  a 
server in LAN. 
  Protocol: Includes TCP,  UDP and  Both. Select  “Both” when 
you are not sure about which protocol to use. 
  Enable:  Check  the  “Enable”  option  to  activate  a 
corresponding entry next to it. 
  Delete:  Check  the  “Delete”  option  to  delete  a 
corresponding entry next to it. 
  Well-Known Service Port: The “Well-Known Service Port” 
provides commonly used protocol ports. Select one from 
them and then click the “Add to” button to automatically 
add selected port to the Start Port-End Port fields of 
selected entry ID. You can also manually add the ports 
which are not included in the “Well-Known Service Port”. 
  Add to: Add a selected Well-Known Service Port to the Start 
Port-End Port boxes of the entry you select. 
For example: A LAN PC at 192.68.2.10 hosts WEB service on Port 
80 and provides Telnet service on Port 23. To make such services 
accessible  to  Internet  users,  config  as  shown  on  the  screenshot 
above. 
Note: If you include port 80 on this section, you must set the port 
on  remote  (web-based)  management  section  to  a  different 
number  than  80,  such  as  8080,  otherwise  the  Port  Range 
Forwarding feature may not take effect.