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VPC PeeringΒΆ

  • Connect two VPC, privately using AWS' network
  • Make them behave as if they were in the same network
  • Must not have overlapping CIDR
  • [[VPC Peering connection]] is not transitive (must be established for each VPC that need to communicate with one another)
  • You must update Route Table in each VPC's Subnets to ensure instances can communicate

We can create a peering connection to connect our Default VPC with our DemoVPC.

Now we have to update the PublicRouteTable and DefaultRouteTable