Thanks for you suggestion.
We follow the best security practices when building our assets. In this case, we believe that the admin page of the application is something that should not be publicly available and that's why we configure it to be accessible using 220.127.116.11 only. You can easily create a SSH tunnel to access that admin site without needing to modify the configuration to make it publicly available.
Let us know if you need help when creating that SSH tunnel.