terraform/website/source/docs/providers/aws/r/route_table.html.markdown

---
layout: "aws"
page_title: "AWS: aws_route_table"
sidebar_current: "docs-aws-resource-route-table|"
description: |-
  Provides a resource to create a VPC routing table.
---

# aws\_route\_table

Provides a resource to create a VPC routing table.

~> **NOTE on Route Tables and Routes:** Terraform currently
provides both a standalone [Route resource](route.html) and a Route Table resource with routes
defined in-line. At this time you cannot use a Route Table with in-line routes
in conjunction with any Route resources. Doing so will cause
a conflict of rule settings and will overwrite rules.

~> **NOTE on `gateway_id` and `nat_gateway_id`:** The AWS API is very foregiving with these two
attributes and the `aws_route_table` resource can be created with a NAT ID specified as a Gateway ID attribute.
This _will_ lead to a permanent diff between your configuration and statefile, as the API returns the correct
parameters in the returned route table. If you're experiencing constant diffs in your `aws_route_table` resources,
the first thing to check is whether or not you're specifying a NAT ID instead of a Gateway ID, or vice-versa.

## Example usage with tags:

```hcl
resource "aws_route_table" "r" {
  vpc_id = "${aws_vpc.default.id}"

  route {
    cidr_block = "10.0.1.0/24"
    gateway_id = "${aws_internet_gateway.main.id}"
  }

  route {
    ipv6_cidr_block = "::/0"
    egress_only_gateway_id = "${aws_egress_only_internet_gateway.foo.id}"
  }

  tags {
    Name = "main"
  }
}
```

## Argument Reference

The following arguments are supported:

* `vpc_id` - (Required) The ID of the routing table.
* `route` - (Optional) A list of route objects. Their keys are documented below.
* `tags` - (Optional) A mapping of tags to assign to the resource.
* `propagating_vgws` - (Optional) A list of virtual gateways for propagation.

Each route supports the following:

* `cidr_block` - (Optional) The CIDR block of the route.
* `ipv6_cidr_block` - Optional) The Ipv6 CIDR block of the route
* `egress_only_gateway_id` - (Optional) The Egress Only Internet Gateway ID.
* `gateway_id` - (Optional) The Internet Gateway ID.
* `nat_gateway_id` - (Optional) The NAT Gateway ID.
* `instance_id` - (Optional) The EC2 instance ID.
* `vpc_peering_connection_id` - (Optional) The VPC Peering ID.
* `network_interface_id` - (Optional) The ID of the elastic network interface (eni) to use.

Each route must contain either a `gateway_id`, an `instance_id`, a `nat_gateway_id`, a
`vpc_peering_connection_id` or a `network_interface_id`. Note that the default route, mapping
the VPC's CIDR block to "local", is created implicitly and cannot be specified.

## Attributes Reference

The following attributes are exported:
~> **NOTE:** Only the target that is entered is exported as a readable
attribute once the route resource is created.

* `id` - The ID of the routing table

## Import

Route Tables can be imported using the `route table id`, e.g.

```
$ terraform import aws_route_table.public_rt rtb-22574640
```