Multitech MTCBA-Xx-EN2-GP User Manual

Chapter 3 – Using the Web Management Software 

MultiModem rCell User Guide  

41 

DDNS (Dynamic Domain Naming System) allows you to have a static domain name with a dynamic IP address.  

When the dynamic IP address changes, it is submitted to the DDNS server. Here, the domain name is updated to point to the 
new IP address. 

You must register with a DDNS server to use this feature. 

This section describes the parameters that you can configure in the General group. 

Check the Enable or Disable box. This enables/disables DDNS. Default is Disable.

Check the Enable or Disable box. If enabled, the program queries the server to determine the 
IP address before it performs the DDNS update (the IP address is still assigned by the wireless 
provider and the DDNS is updated based on the address returned by Check IP Server). If 
disabled, the program performs the DDNS update using the IP address that it obtains from 
the PPP link. Default is Enable.

Enter the Server name from which the currently assigned IP address is obtained. This server is 
a server the router accesses to check its current IP address. 

Enter the port number of the Check IP Server. Default is 80.

Enter the Server name to which the IP Address change is registered; for example, 
members.dyndns.org 

Enter the Server port number. Default is 80.

Enter the maximum number of tries that are allowed if the update fails. Default is 5. Range is 
0 – 100.

Enter the interval, in days, that lapse before the IP Address can change. At the end of this 
interval, the existing IP Address is updated in the server so that it does not expire. Default is 
28 days. Range is 1 – 99 days. 

Sets the system registration type as either Dynamic or Custom. Default is Dynamic.

Enter the registered Domain name.