Carve subnets from an address space

The API team needs a subnet inside vnet-app. Create subnet-api on 10.1.3.0/26 and work out how many VMs it can actually hold.

1. Check the size of a /26 first.

   cidr 10.1.3.0/26Type it

2. Create the subnet inside vnet-app.

   az network vnet subnet create -g rg-lab --vnet-name vnet-app --name subnet-api --address-prefixes 10.1.3.0/26Type it
   What's this?

   Adds a subnet: a range carved out of the virtual network's address space.

   • -g the resource group the resources live in
   • --vnet-name the virtual network
   • --name the name of the thing to look at or change
   • --vnet-name vnet-app the VNet the subnet belongs to
   • --name subnet-api the subnet's name
   • --address-prefixes 10.1.3.0/26 the subnet's range, inside the VNet's space

3. Answer below. Remember which addresses Azure keeps.

   How many addresses in subnet-api can you assign to resources?

   Check

   What's the first address Azure can assign in subnet-api?

   Check