Azure Virtual Appliance

• Third party devices generally load balancers, firewalls etc
• Whenever you use Azure Virtual Application, you need create a User Defined Route
• It is A VM with some networking software/application

DDOS

• Microsoft offers two SKUs
  • Basic: Enabled by default at zero cost
  • Standard: Choose this plan in VNET. This offers flexibility and analytics on what attacks are happening and you can also layout a plan. Charges are involved

Azure Firewall

• Rules can be applied at VNET Level
• Paid Service

Hybrid Networking

Basic VPN Setup

On-Premise

• List of Devices supported for On-Premise Gateway are over here

Site to Site VPN

Multi Site (Site to Site VPN)

Azure virtual WAN

• When number of sites are more, it is recommended to use Azure Virtual WAN