Internet Gateway (IG)

  • Use to provide Internet Connection to the VPC
  • It is scalable, highly available and redundant
  • One VPC can have one IG
  • One IG can have one VPC
  • IG work like NAT for instance, that has public IP
  • Default VPC have an attached IG
  • For Custom VPC need to create an IG and attach to the VPC
  • To ensure the EC2 instance have internet connection over IG
  • The route table should have a definition of route for IG
  • The ACL should have inbound and outbound traffic allowence