azure-networking

Design a hub-spoke Azure network by deploying a central hub VNet with shared services and peering it to spoke VNets. This topology uses VNet peering and gateway integration to route traffic securely across multiple subscriptions without overlapping IP addresses.

Segment Azure subnets by applying Network Security Groups (NSGs) to subnets or network interfaces, and use Application Security Groups (ASGs) to group VMs by workload. This filters traffic based on application tiers rather than individual IP addresses.

Configure user-defined routes (UDRs) by creating a route table and associating it with subnets to override default Azure routing. This forces traffic through Network Virtual Appliances or Azure Firewall for inspection before reaching its destination.

Yes, you can connect on-premises networks to Azure using both VPN and ExpressRoute simultaneously for redundancy. This configuration uses co-existing gateways to establish secure global and regional connectivity patterns across your Azure environment.

Yes, this approach supports Private Link and custom DNS configurations to resolve private endpoint FQDNs. It ensures on-premises and cross-VNet traffic accesses PaaS services privately over the Microsoft backbone network rather than public internet.