ExpressRoute supports three routing domains for various types of services.

Private peering

• Virtual Networks, including all virtual machines and cloud services

Public peering

• Most of the Azure services with a few exceptions below
• Power BI
• Dynamics 365 for Operations (formerly known as Dynamics AX Online)

Microsoft peering

• Office 365*
• Most of the Dynamics 365 services (formerly known as CRM Online)
  • Dynamics 365 for Sales
  • Dynamics 365 for Customer Service
  • Dynamics 365 for Field Service
  • Dynamics 365 for Project Service

Very Important! The following Azure services are not supported on ExpressRoute!

• CDN
• Visual Studio Team Services Load Testing
• Multi-factor Authentication
• Traffic Manager

* Even if Office 365 is configured to work over ExpressRoute, general access to the Internet is still required! Feel free to contact me if you need more details!

Time to time, during our Microsoft Cloud projects, we get pretty much the same question: “Do Azure VPN or ExpressRoute provide traffic encryption?” So, here is an explanation :)…

ExpressRoute provides network traffic QoS only for Skype for Business, while Azure VPN does not provide this kind of service. You can read more details on ExpressRoute at the link below: