Good Afternoon Abraham,
In my answers I'll assume you'll get AsyncOS 7.5 for Web for your WSA.
1. This is "in-line" mode, and while the documentation doesn't specifically say you can't do this, it doesn't say you can either. The support on this is fuzzy. There are 2 supported ways to deploy a WSA: Transparent redirection (using WCCP or policy-based routing), or explicit mode, using settings in the browser, or PAC files.
2. If I understand your question, the answer is yes. With transparent redirection, you can force all http traffic to the WSA, and require users to authenticate. You can force the users to enter a username and password, or it can happen automatically (see answer 3)
3. There are a few ways to handle authentication for your users:
They can authenticate to the the ironport, which can do a lookup against your LDAP or Active Directory.
It can transparently authenticated them if you're using Active Directory and a browser that supports it (IE, Firefox, Chrome)
You can use the ADAgent (runs on a seperate box) which scrapes the security logs from the AD domain controllers and passed authenticated users and their IP to the the Ironport.
4. I'm not aware of a "logout" page.
5. There is a "local database" for administrative users, and you can use RADIUS for administrative users, but not for your regular users. (see answer 6)
6. Yes. You can use LDAP, Novell eDirectory, or Microsoft Active Directory for your users.
I hope that helps!
Ken
