• Available number of characters: 1 - 128 characters• Available characters: Alphanumeric characters, the colon (:), the period (.), the underscore (_), and thehyphen (-).• Default: None (blank)IMPORTANT• When entering the host name for “NTP server address”, it is necessary to configure the DNS settingson the [Network] tab of the “Network” page. (®page 152)[NTP port]Enter a port number of the NTP server.• Available port number: 1 - 65535• Default: 123The following port numbers are unavailable since they are already in use.20, 21, 23, 25, 42, 53, 67, 68, 69, 80, 110, 161, 162, 443, 995, 10669, 10670[Time adjustment interval]Select an interval (1 - 24 hours: in 1 hour intervals) of synchronization with the NTP server.• Default: 1h2.9.2.4 Configure the UPnP settingsThis camera support UPnP (Universal Plug and Play). By using the UPnP function, it becomes possible toconfigure the following automatically.– Configuration of the port forwarding function of the router (However, a router supporting UPnP is required.)This configuration is useful when accessing the camera via the Internet, or from a cellular phone/mobileterminal.– Automatic refreshment of the shortcut to the camera that is created on the [Network] folder of the PC evenwhen the IP address of the camera changes.[Auto port forwarding]Select “On” or “Off” to determine whether or not to use the port forwarding function of the router.To use the port forwarding function, the router in use must support UPnP and the UPnP must be enabled.• Default: OffNote• Due to port forwarding, the port number may sometimes be changed. When the number is changed,it is necessary to change the port numbers registered in the PC and recorders, etc.• The UPnP function is available when the camera is connected to the IPv4 network. IPv6 is notsupported.Operating Instructions 1672 Settings
