In order to obtain an anonymous access to a KM folder, I followed the instructions in the guide How to configure an anonymous access to KM.
Unfortunately I still have 2 problems:
1) connecting to the portal by http://<server name etc.>/anonymous I can see the folder and the documents list, but if I try to open a document clicking on it I get a page with the message 401 Unauthorized by the J2EE Engine
2) in the KM Navigation Iview I cannot see the icons (those of the documents type, that one of the folder and so on), and when opening the iview I have a logon request for every icon
Someone can help me?