Trendnet TW-H6W1IR 사용자 설명서

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TW-H6W1IR ISDN Remote Router 
 
Configuration and Management 
87 
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Local Interface – this is the interface corresponding to the Local 
IP
 and Range parameters, in the NAT table, to form local IP 
address[es], known only to this interface and the network within. 
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Translation Mode  – this toggles choices of four types of NATs. 
Static NAT – Maps one global IP address to one local IP 
address. After all global IP addresses are assigned, they will 
remain static. This option may be necessary for email, web, ftp 
servers, etc. where static IP addresses are essential for 
operation. 
Dynamic NAT – Maps one global IP address to one local IP 
address. Global IP addresses will be dynamically reassigned to 
different local IP addresses if not currently being used. This 
allows a larger number of users to use a small number of IP 
addresses. 
Static NAPT – One to one mapping of UDP/TCP port 
numbers to let packets with specific UDP/TCP port numbers 
enter the local IP domain. The NAPT map table will not age. 
This option may be necessary for email, web, ftp servers, etc. 
where static port numbers are essential for operation. Setting 
the global port number to 0 opens port numbers 1024 to 
65535 for the designated local IP address, creating a visible 
computer
. This allows a computer to be freely accessed by 
other computers on the Internet, which is necessary for some 
applications to function correctly when using NAPT, including 
Microsoft NetMeeting, CUSeeMe, etc. 
Dynamic NAPT - One to one mapping of UDP/TCP port 
numbers. The NAPT map table will age. This option allows 
many hosts to use a single, globally unique IP address.