R502 Multifunctional Broadband Router User Guide     
communicate with another 
Host in the internet, then the 
process is shown in the right 
Figure. 
UPnP Setting 
Supports the latest Universal 
Plug and Play (UPnP protocol). 
This function requires 
Windows XP/Windows ME OS 
(remark: your OS should be 
integrated with directx or 
Directx 9.0 should be installed 
in the OS already) or 
application software of 
supporting UPnP. Otherwise, it 
will not take effect. Depending 
on UPnP protocol, 
the Host in the LAN can ask 
the router for a especial port 
conversion, which enables the 
external Host to access the 
resource of the internal Host 
when necessary.
 
 
 
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