You have asked these questions in the past.
As stated in the answer to one of your original questions, to deploy forms 6i to the web, you need to install a Forms Server. You need it whether you are going to connect from your internal network or through internet, so, that is the first thing you need to do.
You can download the Forms Server Release 6i documentation here.
Once you have your Forms server set up and serving forms correctly, you can ask for some networking help, to make the necessary changes to securely make your Forms server accessible from the internet.
Keep in mind that your Developer 6i license does not include the Forms Server, so you will have to pay for a Forms Server license.
You should also consider migrating to a newer Forms release.