NAT Gateway¶

• AWS Managed [[NAT]], higher bandwidth, better availability, no admin
• Pay by the hour for usage and bandwidth
• [[NAT]] is created in a specific Availability Zone, uses an Elastic IP
• Cannot be used by an instance in that subnet (only from other subnets)
• Requires Internet Gateway & Route tables ([[Private Subnet]] => NAT Gateway => Internet Gateway & Route tables)
• 5 Gbps of bandwidth with automatic scaling up to 45 Gbps
• No security group to manage / required

The difference between NAT Gateway and NAT Instance can be found here https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-comparison.html

We are going to create a new NAT Gateway on PublicSubnetA

Then we are going to edit the route table of the PrivateRouteTable