For an IFrame component, you configure the URL to display.
To configure an IFrame component:
The authentication fields are displayed.

Basic authentication simply requires the user to be logged in.
Form authentication uses POST or GET to validate the user.
For the user name and password, provide the field names and values to send. If you leave the fields empty, the user's current login information is sent.
In the Hidden Variables field, provide any hidden variables to include in the authentication request.