Buffalo 09101912-0 用户手册

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2.3.6.2.  Port Range Forwarding 
Port range forwarding works similarly to port forwarding. Unlike port 
forwarding, instead of a single port, a range of ports is forwarded to 
the same range of ports at the internal target IP address. 
 
2.3.6.3. Port 
Triggering 
Port triggering is a kind of port range forwarding where outgoing 
traffic on specific ports enables previously defined port forwards for 
the activating device. This temporarily opens required ports when 
specific applications are opened on computers on the LAN. This offers 
a greater level of security than port forwarding or port range 
forwarding because the ports are only opened when needed. 
  
2.3.6.4. UPnP 
UPnP allows UPnP capable applications and devices to open and close 
required ports automatically as needed. This is simple to use and does 
not require further configuration steps. 
  
2.3.6.5. DMZ 
A DMZ computer is a special computer in the internal network that gets 
all incoming traffic forwarded. The task of that computer is managing 
this traffic. When the DMZ feature is activated the internal firewall 
is activated. This can pose a security issue if not handled with care. 
Furthermore, several services of the router, that have to be 
accessible from the WAN side, will not work because the associated 
traffic is forwarded to the DMZ computer. 
 
2.3.6.6. QoS 
QoS (Quality of Service) is a procedure to prioritise network traffic 
by application. Specific services can be assigned specific bandwidth. 
 
Aside from upstream and downstream bandwidth, you can define settings 
for specific services and IP and MAC address ranges. 
 
2.3.7. Administration 
2.3.7.1. Management 
The Management section contains settings for remotely accessing the 
router and other basic settings that are usually not changed. The 
settings for the language used in the Web GUI are also located here. 
You may choose between Chinese (simplified & traditional), Croatian, 
Dutch, French, German, Hungarian, Italian, Japanese, Latvian, Polish, 
Portuguese, Romanian, Russian, Slovenian, Spanish, and Swedish.  The 
default setting is English. 
 
Before using Telnet or SSH, activate the associated service(s) in this 
section. 
 
 
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