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Top Global USA. ----MB5000 User Guide 
„
  Add: Click the Add button, a
 
pop-up
 
window for inputting port forwarding item 
will appear: 
 
Figure 3-32 Port forwarding 
 
 
Each item consists of the following parameters: 
Interface: 
This parameter indicates which interface of MB5000 will implement this port 
forwarding rule. In most cases the interface should be WAN; 
Protocol: 
This parameter indicates which protocol will implement this port forwarding rule. 
Possible protocols are: TCP, UDP, TCP/UDP; 
External port:
 This parameter indicates the port for public access; 
NAP IP: 
This parameter indicates the IP address of the internal host which wants to 
provide service for the outside. 
Local port:
 This parameter indicates the port of internal service; 
Auto forward: 
This parameter will be Enable always, which means MB5000 will enable 
this forward automatically; 
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