We are hosting base maps on our internal Portal for ArcGIS and would like to have them avalable to our enterprise uses. Can Arcmap connect to Portal and allow users to add a basemap?
If I understand your question; yes, but it involves modifying the registry. The FAQ: How do I manage ArcGIS connections to online resources? begins to touch on the subject. I recommend you contact Esri Support and pose your question to them.
