Huawei EchoLife HG520 User Manual page 44

Figure 4-17 Advanced Setup — NAT — Multi NAT
Single click New to open a REDIRECT setup page as shown in
Figure 4-18.
Here is the task you want to fulfill: the HTTP service is activated
on the No.80 port of IP address of 192.168.1.2. User communicates
with No.30 port of IP address of 10.132.41.116 via the Internet. When
receiving such communication request, HG520 will redirect the
request to the No.80 port of IP address of 192.168.1.2 and feedback to
No.30 port of IP address of 10.132.41.116 that the request has been
made.
And that's how you should configure such request: Set the local
port number as 80, local IP as 192.168.1.2, Global Addresses From as
10.132.41.116, Global Addresses To as 10.132.41.126, and the
Destination From/To port as 30-40. Single click Submit button to save
the settings. You have to reboot the device to activate the settings.
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