Internet Gateway
# Related Notes
# Internet Gateway
- Region resilient gateway attached to a VPC
- You do not need a gateway per availability zone
- 1 VPC = 0 or 1 IGW, 1 IGW = 0 or 1 VPC
- Runs from within the AWS Public Zone
- Gateways traffic between the VPC and the Internet or AWS Public Zone (S3, SQS, SNS, etc.)
- Managed - AWS handles performance (it simply works)
# Creation of a Public Subnet
- Create IGW
- Attache IGW to VPC
- Create custom RT
- Associate RT
- Default Routes => IGW
- Subnet allocate IPv4