DDNS (Dynamic Domain Name System) is a service that allows network clients to connect to a wireless router, even with a dynamic public IP address, through its registered domain name. It is a powerful feature of home Wi-Fi routers and serves as the base for hosting various services within a home network, such as a VPN server or a remote desktop connection.
In a home network, DDNS is primarily used to manage the router when the user is away from home, providing access to the familiar web interface. It also enables users to host services on their home network and access them using a custom domain name, even if their public IP address changes.
Here are some key points about DDNS in routers:
- DDNS allows network clients to connect to a router with a dynamic public IP address through its registered domain name.
- It is essential for hosting services within a home network, such as a VPN server or a remote desktop connection.
- DDNS can be set up on a router by configuring the Integrated Dynamic DNS feature, which eliminates the need for a separate Dynamic Update Client.
- Not all router manufacturers include the same DDNS providers, so users may need to check if their preferred provider is supported or use a Dynamic Update Client on a computer at the network location.
- DDNS may not work in certain situations, such as when the network is under a multi-layer NAT or when the Internet service uses large-scale NAT (CGNAT).
