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Egress Only Internet Gateway

An Egress Only Internet Gateway (EOIGW) is a horizontally-scaled, highly available AWS VPC component that allows outbound-only IPv6 traffic from your VPC to the internet while preventing unsolicited inbound connections. Unlike a standard Internet Gateway, an EOIGW supports IPv6 traffic exclusively and enforces one-way egress, making it a useful control when you want resources such as application servers to reach external IPv6 services without being directly reachable from the internet.
For detailed information, see the official AWS documentation: https://docs.aws.amazon.com/vpc/latest/userguide/egress-only-internet-gateway.html

Terrafrom Mappings:

  • egress_only_internet_gateway.id

Supported Methods​

  • GET: Get an egress only internet gateway by ID
  • LIST: List all egress only internet gateways
  • SEARCH: Search egress only internet gateways by ARN

ec2-vpc​

An EOIGW is attached to exactly one VPC. Overmind represents this relationship so that you can navigate from a VPC to its associated egress-only internet gateways and understand which networks can initiate outbound IPv6 traffic to the internet.