Method used to configure the DDNS clients on AR series routers

A Huawei AR (except for the AR 550) supports the DDNS client function. When the IP address mapping the domain name is changed, the DDNS client can notify the DNS server of updating the mapping between domain names and IP addresses on the DNS server to ensure that users can successfully access the servers on the network using domain names.
The AR used as the DDNS client supports update through DDNS (defined by RFC 2136) and the DDNS server.
DDNS update defined by RFC 2136: The AR used as the DDNS client directly updates the mapping between domain names and IP addresses on the DNS server. This function has been available since V200R005C10.
Update through the DDNS server: The AR used as the DDNS client sends the mapping between domain names and IP addresses to the DDNS server with the specified URL. Then the DDNS server notifies the DNS server of dynamically updating the mapping between domain names and IP addresses. The AR can connect to DDNS servers from DDNS service providers www.3322.org,www.dyndns.com, and www.oray.cn, Siemens DDNS server, and common DDNS servers that use HTTP.
There is no difference in the DDNS configuration between different models and versions of AR series routers. For details about the configuration process, see Configuration Guide - IP Service - DNS.

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