freylin wrote:
...
and your IP address has not changed within the past 30 days
...
IP要變動是個must...
不要只抓你想看的那一段來看.
If you are using the Dynamic Update
Client and your IP address has not changed within the past 30 days, you must
manually update it to prevent them from being removed from our system
一般 DDNS 的運作, 是在有 IP 異動時才會去做更新的動作.
上頭那一段是說, 如果你的 IP 在過去 30 天並沒有改的情形下, 你要手動去做 update 的動作.
這也就是為什麼多數的 DDNS client 會設計成每隔一段時間, 不過 IP 有沒有改變, 都去做 update 的動作.