Step 1: Select/Create VPC
1. Navigate to VPC Dashboard**:
- Go to the AWS Management Console.
- Open the VPC Dashboard.
2. Create a VPC**:
- Click on "Create VPC".
- **Name**: Give your VPC a name.
- **IPv4 CIDR Block**: Enter `10.0.0.0/16` (provides 65,536 IP addresses).
Step 2: Create an Internet Gateway (IGW)
1. Create IGW**:
- In the VPC Dashboard, go to "Internet Gateways".
- Click on "Create Internet Gateway".
- **Name**: Provide a name for the IGW.
- Once created, it will be in a detached state.
2. Attach IGW to VPC**:
- Select the newly created IGW.
- Click on "Actions" and then "Attach to VPC".
- Choose the VPC you created in Step 1.
Step 3: Create Subnets
1. Create Subnet:
- In the VPC Dashboard, go to "Subnets".
- Click on "Create Subnet".
- **Name**: Provide a name for the subnet.
- **VPC**: Select the VPC created in Step 1.
- **Availability Zone**: Select an availability zone.
- **IPv4 CIDR Block**: Enter `10.0.1.0/24` (provides 256 IP addresses).
2. Create Additional Subnets**:
- Repeat the steps to create additional subnets as needed, using different CIDR blocks (e.g., `10.0.2.0/24`, `10.0.3.0/24`, etc.).
Step 4: Create a Route Table
1. Create Route Table**:
- In the VPC Dashboard, go to "Route Tables".
- Click on "Create Route Table".
- **Name**: Provide a name for the route table.
- **VPC**: Select the VPC created in Step 1.
2. Edit Routes**:
- Select the newly created route table.
- Go to the "Routes" tab and click on "Edit routes".
- Add a new route:
- **Destination**: `0.0.0.0/0`
- **Target**: Select the Internet Gateway created in Step 2.
3. Edit Subnet Associations**:
- Go to the "Subnet Associations" tab.
- Click on "Edit subnet associations".
- Select the subnets you want to associate with this route table.
Final Step: Verify Configuration
- Ensure that the IGW is attached to the VPC.
- Confirm that the subnets are associated with the route table.
- Verify the routes to ensure that `0.0.0.0/0` is correctly routed to the IGW.
You're done! Your VPC is now configured with an Internet Gateway and subnets, ready to use.
