Creating Custom VPC in AWS

Virtual Private Cloud (VPC) is custom datacenter in Amazon cloud when we define network (subnets,routing tables,ACL’s..)

In AWS console click VPC under Networking & Content Delivery

 

Your VPC’s-Create VPC

CIDR Block size must be between 16-28

Tenancy-default-use shared hardware

dedicated-use dedicated hardware (incurs costs)

 

After creating VPC Route table and Network ACL’s are automatically created

 

 

Creating subnets

From VPC dashboard click Subnets-Create Subnet

Under availability zone choose AZ or let AWS chooses it for you (No Preference)

 

 

By default addresses won’t be automatically leased to VM’s

 

click on subnet-subnet actions-Mofidy auto-assign IP settings

 

Click Auto-assign IPs

 

3 addresses are reserved:

1-vpc router
2-dns server
3-future use

Creating Internet Gateway

we need gateway in order to allow access to our VPC from the internet

 

Internet Gateway-Create Internet Gateway

 

Bind Gateway to subnet-click Attach to VPC

 

 

Edit Routing table

We need to allow internet access from subnet

Route Tables-Click on Route table (created during VPC creation)-Click on Subnet Association-Edit)

Click on check-box to assign subnet to Routing Table

 

 

Click on Routes-Add another route

 

Enter route

 

Create new EC2 instance and select our VPC-under subnet create subnet we created