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AWS Routing

  • VPC is created with the main route table.
    • by default main rout table allows traffic between all subnets in the local network
  • You cannot delete the main route table.
  • You can:
    • replace the main route table with a custom subnet route table.
    • add, remove, and modify routes in the main route table.
  • Subnet by default follow rules form the main route table
    • The main route table is used implicitly by subnets that do not have an explicit route table association.
  • To route traffic from IG you need to create custom route table for subnet and add route to IG

References

  1. https://explore.skillbuilder.aws/learn/course/external/view/elearning/1851/aws-technical-essentials?da=sec&sec=prep Module 2
  2. AWS user guide: Configure Route Tables