https://docs.aws.amazon.com/vpc/latest/userguide/egress-only-internet-gateway.html https://docs.aws.amazon.com/vpc/latest/userguide/egress-only... As per this

https://docs.aws.amazon.com/vpc/latest/userguide/egress-only-internet-gateway.html https://docs.aws.amazon.com/vpc/latest/userguide/egress-only... As per this document, An egress-only internet gateway is for use with IPv6 traffic only. To enable outbound-only internet communication over IPv4, use a NAT gateway instead. For more information, see NAT gateways. Pricing There is no charge for an egress-only internet gateway, but there are data transfer charges for EC2 instances that use internet gateways. For more information, see Amazon EC2 On-Demand Pricing.