Lets understand some more networking concepts
- Routing: The basic functionality is Router is to forward the packet from one network to another
- When we create a network with some subnets, each subnet will have router with some rule defined to forward the packets. These rules are referred as Route Tables.
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How the Internet connectivity is working at your home (NAT Gateway)
Exercise: I need 4 subnets with 250 devices each, Create a network cidr for subnets and the network
Azure Virtual Network (VNet)
- This is the fundamental building block for your private network in Azure
- We can use VNET to
- Communicate between Azure Resources:
- You can deploy VM and several other types of resources to a virtual network (Azure App Service, Azure Kubernetes Services, Azure VMSS)
- Communicate between each other:
- You can establish connections between two virtual networks in Azure.
- Communicate to the internet:
- All resources in a VNET can communicate outbound to the internet by default.
- From Internet if you want to connect to some resource in VNET, The resource should have a public ip.
- Communicate to the On-premises connections:
- We can communicate on-premises networks using VPN Gateways and Express Route.
- Communicate between Azure Resources:
References
- Global Infra Map Refer Here
- To Create a VNET, We need to understand About Azure Global Infrastructure
- In Azure When We create a VNET, We choose a Region. i.e. scope of network is one Region.