I have a MOSS 2007 farm running on windows server 2003 R2 64 bit and IIS 6. When I try to connect to the farm locally on the server, no matter what site, CA or any of the SharePoint web apps I get prompted for creds and when I enter them everything is fine. But, when I connect from my workstation I am not prompted and my windows creditials get passed succesfully.
The web sites directory security in IIS is set to integrated windows auth. I am not using kerberos.
This happens from all the servers in this sharepoint farm.