Establishment of a router of Zyxel

Go to the menu item Advanced
-> DNS an then go there to the tab system

Create a new entry 

Wildcard: NO

Change your tab into the 'DDNS' tab

[x] Active
Service Provider: WWW.DynDNS.COM
User name: HOST-ID
(Is shown to you when name is created.)
(Is shown to you when name is created.)

Domain name:
DDNS Type: Dynamic

Zyxel USG Series


The establishment of the ZyWALL USG Series is made in a similar way. It is shown with the screenshots on the right.

The numeric user name cannot be saved if you have an older version of firmware. Therefore updating the current Version of USG produces reflief.

There you can receive the current version of firmware: