VPN Gateway for hybrid connectivity in Azure - Step-by-Step Execution

Process Flow - VPN Gateway for hybrid connectivity

Start: On-Premises Network

↓

Create VPN Gateway in Azure

↓

Configure VPN Connection

↓

Establish Secure Tunnel

↓

Data Flows Securely Between Networks

↓

End

This flow shows how a VPN Gateway connects an on-premises network to Azure securely, enabling hybrid connectivity.

Execution Sample

Azure

az network vnet-gateway create --resource-group MyRG --name MyVPNGateway --public-ip-address MyPublicIP --vnet MyVNet --gateway-type Vpn --vpn-type RouteBased --sku VpnGw1
az network vpn-connection create --resource-group MyRG --name MyConnection --vnet-gateway1 MyVPNGateway --local-gateway2 MyLocalGateway --shared-key abc123

This code creates an Azure VPN Gateway and then sets up a VPN connection to an on-premises local gateway using a shared key.

Process Table

Step	Action	Resource Created/Configured	Status	Result
1	Create VPN Gateway	VPN Gateway 'MyVPNGateway'	In Progress	Provisioning started
2	VPN Gateway Provisioned	VPN Gateway 'MyVPNGateway'	Succeeded	Gateway ready for connections
3	Create VPN Connection	VPN Connection 'MyConnection'	In Progress	Connection setup started
4	VPN Connection Established	VPN Connection 'MyConnection'	Succeeded	Secure tunnel established
5	Data Transfer	VPN Tunnel	Active	Hybrid connectivity enabled
6	Monitor Connection	VPN Connection 'MyConnection'	Active	Connection healthy

💡 VPN Gateway and VPN Connection are active, enabling secure hybrid network connectivity.

Status Tracker

Variable	Start	After Step 2	After Step 4	Final
VPN Gateway Status	Not created	Succeeded	Succeeded	Succeeded
VPN Connection Status	Not created	Not created	Succeeded	Active
Secure Tunnel	Not established	Not established	Established	Active

Key Moments - 3 Insights

Why does the VPN Gateway take time to be ready after creation?

Because provisioning the VPN Gateway involves allocating resources and configuring network settings, it takes time before the status changes to 'Succeeded' as shown in execution_table step 2.

What does the shared key do in the VPN connection setup?

The shared key is a secret used to authenticate and secure the VPN tunnel between Azure and the on-premises gateway, ensuring only trusted networks connect, as seen in step 4 where the connection is established.

Why is monitoring the VPN connection important after setup?

Monitoring ensures the VPN tunnel stays active and healthy for continuous hybrid connectivity, as indicated in step 6 where the connection status is 'Active'.

Visual Quiz - 3 Questions

Look at the execution_table, what is the VPN Gateway status after step 2?

A In Progress

B Failed

C Succeeded

D Not created

💡 Hint

Check the 'Resource Created/Configured' and 'Status' columns at step 2.

At which step does the secure tunnel get established?

A Step 4

B Step 5

C Step 3

D Step 6

💡 Hint

Look for 'VPN Connection Established' and 'Secure tunnel established' in the 'Result' column.

If the shared key is incorrect, which step would likely fail?

A Step 2

B Step 4

C Step 1

D Step 6

💡 Hint

The shared key is used during VPN connection establishment, see step 4.

Concept Snapshot

VPN Gateway connects Azure VNet to on-premises network securely.
Create VPN Gateway resource, then configure VPN Connection with shared key.
Provisioning takes time; connection establishes secure tunnel.
Monitor connection health for reliable hybrid connectivity.

Full Transcript

This visual execution traces setting up an Azure VPN Gateway for hybrid connectivity. First, the VPN Gateway resource is created and provisioned. Then, a VPN Connection is configured using a shared key to link the Azure gateway with the on-premises local gateway. Once the connection is established, a secure tunnel enables data flow between networks. Monitoring ensures the connection remains active and healthy. Key moments include understanding provisioning delays, the role of the shared key, and the importance of monitoring.

Practice

1. What is the primary purpose of an Azure VPN Gateway in hybrid connectivity?

easy

A. To manage Azure Active Directory users

B. To securely connect an Azure virtual network with an on-premises network

C. To provide public internet access to Azure resources

D. To host web applications in Azure

Solution

1. Step 1: Understand VPN Gateway role

   An Azure VPN Gateway creates a secure tunnel between Azure and on-premises networks.

2. Step 2: Identify correct purpose

   Among the options, only connecting Azure virtual network with on-premises securely matches the VPN Gateway's role.

3. Final Answer:

   To securely connect an Azure virtual network with an on-premises network -> Option B

4. Quick Check:

   VPN Gateway = Secure hybrid connection [OK]

Hint: VPN Gateway links cloud and local networks securely [OK]

Common Mistakes:

• Confusing VPN Gateway with web hosting services
• Thinking VPN Gateway manages user identities
• Assuming VPN Gateway provides public internet access

2. Which subnet name must you use when creating a VPN Gateway in an Azure virtual network?

easy

A. PublicSubnet

B. VPNSubnet

C. Subnet1

D. GatewaySubnet

Solution

1. Step 1: Recall required subnet for VPN Gateway

   Azure requires a subnet named exactly 'GatewaySubnet' for VPN Gateway deployment.

2. Step 2: Verify option correctness

   Only 'GatewaySubnet' matches the required name; others are invalid for VPN Gateway.

3. Final Answer:

   GatewaySubnet -> Option D

4. Quick Check:

   VPN Gateway subnet = GatewaySubnet [OK]

Hint: Always name VPN Gateway subnet as GatewaySubnet [OK]

Common Mistakes:

• Using generic subnet names instead of GatewaySubnet
• Confusing VPNSubnet with GatewaySubnet
• Not creating a dedicated subnet for VPN Gateway

3. Given this Azure CLI command snippet to create a VPN Gateway:

az network vnet-gateway create --name MyVpnGateway --public-ip-address MyPublicIP --resource-group MyResourceGroup --vnet MyVNet --gateway-type Vpn --vpn-type RouteBased --sku VpnGw1

What VPN type is being used here?

medium

A. RouteBased

B. PointToSite

C. ExpressRoute

D. PolicyBased

Solution

1. Step 1: Analyze the command parameters

   The parameter '--vpn-type RouteBased' explicitly sets the VPN type to RouteBased.

2. Step 2: Confirm VPN type meaning

   RouteBased VPN supports flexible connections and is commonly used for hybrid networks.

3. Final Answer:

   RouteBased -> Option A

4. Quick Check:

   --vpn-type RouteBased means RouteBased VPN [OK]

Hint: Look for --vpn-type parameter to identify VPN type [OK]

Common Mistakes:

• Confusing PolicyBased with RouteBased
• Assuming ExpressRoute is a VPN type
• Mixing PointToSite with Site-to-Site VPN types

4. You deployed a VPN Gateway but the connection to your on-premises network fails. Which of these is a likely misconfiguration?

medium

A. The virtual network has too many subnets

B. The VPN Gateway SKU is set to Basic for high throughput needs

C. The GatewaySubnet is missing or incorrectly named

D. The public IP address is assigned to a VM instead of the VPN Gateway

Solution

1. Step 1: Check subnet configuration

   VPN Gateway requires a correctly named GatewaySubnet; missing or wrong name causes failure.

2. Step 2: Evaluate other options

   Too many subnets is not a direct cause; SKU Basic may limit performance but not cause failure; public IP must be assigned to VPN Gateway, not VM.

3. Final Answer:

   The GatewaySubnet is missing or incorrectly named -> Option C

4. Quick Check:

   GatewaySubnet misconfiguration causes VPN failure [OK]

Hint: Verify GatewaySubnet exists and is named correctly [OK]

Common Mistakes:

• Ignoring GatewaySubnet naming requirements
• Assigning public IP to wrong resource
• Assuming SKU affects connection establishment

5. You want to set up a hybrid network with Azure using a VPN Gateway. Your on-premises network uses static routing. Which VPN type should you choose for maximum flexibility and why?

hard

A. RouteBased, because it supports both static and dynamic routing

B. PolicyBased, because it supports static routing only

C. ExpressRoute, because it is faster than VPN

D. PointToSite, because it supports multiple clients

Solution

1. Step 1: Understand VPN types and routing

   PolicyBased VPN supports only static routing; RouteBased supports static and dynamic routing.

2. Step 2: Match VPN type to flexibility needs

   RouteBased VPN is more flexible and recommended for hybrid networks with static or dynamic routing.

3. Step 3: Exclude other options

   ExpressRoute is a different service, not a VPN type; PointToSite is for individual client connections, not site-to-site.

4. Final Answer:

   RouteBased, because it supports both static and dynamic routing -> Option A

5. Quick Check:

   RouteBased VPN = flexible routing support [OK]

Hint: Choose RouteBased VPN for static and dynamic routing support [OK]

Common Mistakes:

• Choosing PolicyBased for flexibility
• Confusing ExpressRoute with VPN Gateway
• Using PointToSite for site-to-site connectivity