Public Subnet: Communication allowed - Subnet <-> Internet

An Internet Gateway enables internet communication for subnets

Public Subnet: Subnet having a route to an internet gateway

Private Subnet: Subnet DOES NOT have route to an internet gateway

Internet Gateway sits between subnet (VPC) resources and internet

One to one mapping with a VPC

Supports IPv4 and IPv6

Translate private IP address to public IP address and vice-versa

Public Subnet vs Private Subnet

N