Dahua DH-XVR5416L-X User Manual page 259

Step 2 Configure the settings for the UPnP parameters. See Table 5-65.
Parameter Description
PAT Enable the UPnP function.
Indicates the status of UPnP function.
Status 

Enter IP address of router on the LAN.
LAN IP
After mapping succeeded, the system obtains IP address
automatically without performing any configurations.
Enter IP address of router on the WAN.
WAN IP
After mapping succeeded, the system obtains IP address
automatically without performing any configurations.
Figure 5-205
Offline: Failed.
Online: Succeeded.
Local Configurations 243