Step 1: Login to your ZyXEL router via the default gateway.

Step 2: Click on “Network” and then “DDNS.”

Step 3: Click “Enable Dynamic DNS.” Enter the following information:

Service Provider: WWW.NO-IP.COM
Host Name: all.ddnskey.com
User Name: DDNS Key Username
Password: DDNS Key Password

DDNS Key usernames and passwords are created individually for each hostname or group of hostnames. They are generated from the DNS Records page in your account.

Step 4: Click on “Apply.” 

Congratulations, the ZyXEL router will now send No-IP updates whenever the IP address changes.