cloud-engineering

Internet Gateway

Definition

An internet gateway is a horizontally scaled, redundant VPC component that enables communication between resources in a VPC and the public internet. It performs network address translation (NAT) for instances with public IP addresses.

Attaching an internet gateway to a VPC and adding a route table entry (0.0.0.0/0 → igw) is required for public subnets to receive inbound internet traffic.

Related Terms

NAT Gateway

VPC

Virtual Private Cloud

Route Table

Elastic IP

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