Azure ExpressRoute Global Reach allows customers to connect their on-premises networks via the ExpressRoute service through the Microsoft global network.
Azure DNS is being offered at 100% availability SLA, guaranteeing that valid DNS requests will receive a response from at least one Azure DNS name server 100% of the time.
This support for BGP community tags on traffic sent from Azure to on-premises over ExpressRoute enables customers to set routing preferences and pursue a greater variety of hybrid network designs.
Azure VPN Gateway NAT (Network Address Translation) can be used to connect on-premises networks or branch offices to an Azure virtual network with overlapping IP addresses.
With this preview release, traffic between your Relay sender client running inside your virtual network and Azure Relay uses the Microsoft backbone network providing network isolation.