Huawei EchoLife HG520 User Manual page 54

addressed directly from the outside world by its fake public IP address,
but still by only opening specific ports to it.
Take Figure 4-28 as example, when internal IP address
192.168.1.56 accesses Internet, Internet will identify this IP address
as 192.168.1.166. Internet user can access the service provided on IP
address 192.168.1.56 via 192.168.1.166.
Single click New button to open the configuration page. Enter the
internal and external IP addresses.
Figure 4-29 Multinat Setting -- Add
Huawei Technologies Proprietary
Figure 4-28 Multinat Setting
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