Middlebox routing wizard - Amazon Virtual Private Cloud
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China.

Middlebox routing wizard

If you want to configure fine-grain control over the routing path of traffic entering or leaving your VPC, for example, by redirecting traffic to a security appliance, you can use the middlebox routing wizard in the VPC console. The middlebox routing wizard helps you by automatically creating the necessary route tables and routes (hops) to redirect traffic as needed.

The middlebox routing wizard can help you configure routing for the following scenarios:

  • Routing traffic to a middlebox appliance, for example, an Amazon EC2 instance that's configured as a security appliance.

  • Routing traffic to a Gateway Load Balancer. For more information, see the User Guide for Gateway Load Balancers.

For more information, see Middlebox scenarios.

Middlebox routing wizard prerequisites

Review the Middlebox routing wizard considerations. Then, make sure that you have the following information before you use the middlebox routing wizard.

  • The VPC.

  • The resource where traffic originates from or enters the VPC, for example, an internet gateway, virtual private gateway, or network interface.

  • The middlebox network interface or Gateway Load Balancer endpoint.

  • The destination subnet for the traffic.

Middlebox routing wizard considerations

Take the following into consideration when you use the middlebox routing wizard:

  • If you want to inspect traffic, you can use an internet gateway or a virtual private gateway for the source.

  • If you use the same middlebox in a multiple middlebox configuration within the same VPC, make sure that the middlebox is in the same hop position for both subnets.

  • The appliance must be configured in a separate subnet from the source or destination subnet.

  • You must disable source/destination checking on the appliance. For more information, see Changing the Source or Destination Checking in the Amazon EC2 User Guide for Linux Instances.

  • The route tables and routes that the middlebox routing wizard creates count toward your quotas. For more information, see Route tables.

  • If you delete a resource, for example a network interface, the route table associations with the resource are removed. If the resource is a target, the route destination is set to blackhole. The route tables are not deleted.

  • The middlebox subnet and the destination subnet must be associated with a non-default route table.

    Note

    We recommend that you use the middlebox routing wizard to modify or delete any route tables that you created using the middlebox routing wizard.