About DDNS

The dynamic domain name service (DDNS) allows a device with a dynamic IP address to be accessed using a well-known domain name. DNS servers handle mapping a name (such as MyJACE.EasyIP.net) to an IP address. With DDNS, each time a host receives a new IP address, it sends an update to the name-to-IP-address mapping on the DDNS server. The DDNS function can be implemented on hosts connecting to an internal LAN (with company DDNS servers) and the Internet (with third-party DDNS services). When configuring a JACE with captive ISP, many times you cannot obtain a static IP address for the JACE from the ISP. The DDNS may be implemented on Win32-based controllers with an Internet DDNS provider.