I have successfully installed SharePoint 2013 and Office Web Apps on Azure VMs inside an Azure Virtual Network (IaaS model). Everyting is working well. However, my testing has shown that external users and internal users can't use Office Web Apps at the same time.
Office Web Apps, installed on its own vm, accomodates an external and internal URL quite well. However, SharePoint 2013 appears to only allow one setting for WOPI Zone, either internal or external but not both. I've set the WOPI zone to Internal-HTTPS (Set-SPWOPIZone–Zone “internal-https”). OWA works just fine if accessed from inside the Azure Virtual Network. However, if I try to access from outside the Virtual Network, from the Internet, Office Web Apps fails. The exact oppisite is also true. I can set WOPI Zone to External-HTTPS and accessing from the Internet works fine, but accessing inside the Virtual Network fails.
Am I missing something? I, obviously, want Office Webs Apps to function properly for both internal and external users simultaneously.
I appreciate any help anyone can provide here.
Glenn