Configuring a DDNS Client
A device functions as a DDNS client. When the IP address corresponding to the domain name changes, the DDNS client can notify the DNS server to update the mapping between the domain name and the IP address on the DNS server. This ensures that users can successfully access servers on the network using domain names.
Pre-configuration Tasks
(Optional) Register on the DDNS server website.
The device functioning as the DDNS client supports the following update modes:
- DDNS update mode (defined by the RFC2136): The DDNS client dynamically updates the mapping between domain names and IP addresses on the DNS server.
- Update mode implemented through the DDNS server: The DDNS client sends the mapping between domain names and IP addresses to the DDNS server with a specified URL. The DDNS server then informs the DNS server to dynamically update the mapping between domain names and IP addresses.
When using the update mode implemented through the DDNS server, the DDNS client must register on the DDNS server website. Currently, the device can be connected to the following DDNS servers: DDNS servers provided at www.3322.orgdyndns.orgs.com, and www.oray.cn, Siemens DDNS server, and HTTP-based common DDNS server.
Authentication steps are implemented in the update process through DDNS servers. All DDNS servers except Siemens DDNS servers do not encrypt user passwords during the authentication. For security purposes, you are advised to configure IPSec when using these DDNS servers to implement update. For details, see IPSec Configuration in the Huawei AR Series V300R019 Configuration Guide - VPN.
- Configure a route between the device and the DDNS server or DNS server.
