48Parameter FunctionHealth Mail Check the box here to enable this function.Update Period (interval) This function allows the system to send out the test email to check theconnection is OK or not.Check the box to enable this function and then set the correspondinginterval.System can send out the email regularly as you set here.Email Test The system will automatically sent out an email once to test theconnection is OK or not. Before the email test, save the email setupinformation.7.3.6. UPnPIt allows you to establish the mapping relationship between the LAN and the public network.Here you can also add, modify or remove UPnP item. For UPnP on different routers, you must disableUPnP function. See Figure 7-28.In the Windows OS, From [Start] → [Control Panel] → [Add or remove programs]. Click the “Add/RemoveWindows Components” and then select the “Network Services” from the Windows Components Wizard.Click the [Details] button and then check the “Internet Gateway Device Discovery and Control client” and“UPnP User Interface”. Click the [OK] button to begin installation.Enable UPnP from the Web. If your UPnP is enabled in the Windows OS, the network camera can autodetect it via the “My Network Places”.Under manual mode, you can modify external port. Under auto mode, select idle port for auto port mappingwithout user modification.Figure 7-287.3.7. SNMPThe [SNMP] interface is shown as in Figure 7-29 and Figure 7-30.The SNMP allows the communication between the network management work station software and theproxy of the managed device.