Planet Technology ADE-3400v2 사용자 설명서

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3.8.2 Virtual Server   
Go to Advanced Setup ->NAT -> Virtual Server to set virtual server as you need. 
(known as Port Mapping).  
You can configure the router as a virtual server so that remote users accessing 
services such as the Web or FTP at your local site via public IP addresses can  
be automatically redirected to local servers configured with private IP addresses. In 
other words, depending on the requested service (TCP/UDP port numbers), the router 
redirects the external service request to the appropriate server (located at another 
internal IP address). For some applications, you need to assign a set or a range of 
ports (example 4000-5000) to a specified local machine to route the packets. The 
router allows the user to configure the needed port mappings to suit such applications. 
                                                                                                                                                                                                             
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