59Parameter Descriptionrtsp://ip:port/cam/realmonitor?channel=1&subtype=0Table 7-2Click “OK” to save the settings.Step 5In case that the port is modified, enter “http://VTO IP: WEB port no.” in the browser, tovisit WEB interface of this VTO.7.5.4 DDNS ServerIn case of frequent changes in IP address of the device, DDNS (Dynamic Domain Name Server)dynamically updates the relation between domain name and IP address on DNS server, andensures that users are able to visit the device through domain name. Before configuration, please check if the device supports DDNS server; logincorresponding DDNS website to register username, password and domain name info. After the user registers successfully on DDNS website and logins, view the registereduser’s all connected devices.Select “System Config > Network Config > DDNS”.Step 1The system displays “DDNS” interface, as shown in Figure 7-17.Figure 7-17Tick “Enable” to enable DDNS server function.Step 2Set parameters and refer toStep 3ParameterStep 4 DescriptionServer Type Server type refers to name of DDNS server provider.Relation between server type and server name is asfollows.Dyndns DDNS address is: members.dyndns.org.NO-IP DDNS address is: dynupdate.no-ip.com.Server NameServer Port Port no. of DDNS server.Realm Domain name registered by the user at the website ofDDNS server provider.User User name and password obtained from DDNS serverprovider. The user needs to register (including userPassword