Enable route propagation to a transit gateway route table in AWS Transit Gateway - Amazon VPC
Services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the AWS European Sovereign Cloud Region, see the AWS European Sovereign Cloud User Guide.

Enable route propagation to a transit gateway route table in AWS Transit Gateway

Use route propagation to add a route from an attachment to a route table.

To propagate a route to a transit gateway attachment route table
  1. Open the Amazon VPC console at https://eusc-de-east-1.console.amazonaws-eusc.eu/vpc/.

  2. On the navigation pane, choose Transit Gateway Route Tables.

  3. Select the route table for which to create a propagation.

  4. Choose Actions, Create propagation.

  5. On the Create propagation page, choose the attachment.

  6. Choose Create propagation.

To enable route propagation using the AWS CLI

Use the enable-transit-gateway-route-table-propagation command.