Azure Classroomnotes 26/Mar/2022

Outbound internet connectivity to ntier

  • If you create a VM in the Azure VNET in any subnet without public ip, the machine is not have internet connectivity
  • To understand this better, lets understand Azure Virtual network traffic routing

Virtual Network Traffic Routing

  • Azure automatically creates the systems routes to each subnet in a vnet.
  • We cannot create or remove the system routes, but we can override some system routes with custom routes
  • Default routes Refer Here

NAT Gateway

  • NAT gateway provides outbound internet connectivity for one or more subnets of virtual network.
  • Once NAT is associated with a subnet, NAT provides source network address translation for that subnet
  • NAT Gateway specifies which static IP address virtual machines use when creating outbound flows
  • Create a NAT Gateway
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  • Creating a NAT Gateway should connect outbound internet to our subnet but whats missing
  • Exercise We need to resolve this issue of internet connectivity for VMs with private ip to Internet.

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devops & cloud enthusiastic learner