The online document shows how to set DDNS
https://support.huawei.com/enterprise/en/doc/EDOC1100057268/e3e5e149/setting-ddns-parameters
I have used DYNDNS to test it,
TE30 firmware TE60 V600R019C00SPC200
DDNS update URL: https://members.dyndns.org/v3/update
Expected to see Public IP, but
Result: Internal IP (192.168.1.xxx) is updated to DYNDNS
