I was configuring one of our ESXi 5.0 hosts for AD authentication, when I decided to take a peek at the new firewall rules that enabling the AD service created. What I found was a slew of ports I would expect (88, 445, 3268, etc.) but I did see one oddball: 51915. I looked at the VMware KB article that lists all of the ports/protocols for VMware products and there's not a single mention of 51915.
Can anyone enlighten me why the ESXi 5.0 host enabled outgoing port 51915 when you turn on AD authentication? I realize it's just an outgoing port rule, so the host isn't listening, but it still seemed a bit odd to me. Is it related to the new ESXi authentication proxy feature?
Derek Seaman