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[ aws . ec2 ]

create-route

Description

Creates a route in a route table within a VPC.

You must specify one of the following targets: Internet gateway or virtual private gateway, NAT instance, NAT gateway, VPC peering connection, network interface, or egress-only Internet gateway.

When determining how to route traffic, we use the route with the most specific match. For example, traffic is destined for the IPv4 address 192.0.2.3 , and the route table includes the following two IPv4 routes:

  • 192.0.2.0/24 (goes to some target A)
  • 192.0.2.0/28 (goes to some target B)

Both routes apply to the traffic destined for 192.0.2.3 . However, the second route in the list covers a smaller number of IP addresses and is therefore more specific, so we use that route to determine where to target the traffic.

For more information about route tables, see Route Tables in the Amazon Virtual Private Cloud User Guide .

See also: AWS API Documentation

Synopsis

  create-route
[--destination-cidr-block <value>]
[--destination-ipv6-cidr-block <value>]
[--dry-run | --no-dry-run]
[--egress-only-internet-gateway-id <value>]
[--gateway-id <value>]
[--instance-id <value>]
[--nat-gateway-id <value>]
[--network-interface-id <value>]
--route-table-id <value>
[--vpc-peering-connection-id <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]

Options

--destination-cidr-block (string)

The IPv4 CIDR address block used for the destination match. Routing decisions are based on the most specific match.

--destination-ipv6-cidr-block (string)

The IPv6 CIDR block used for the destination match. Routing decisions are based on the most specific match.

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--egress-only-internet-gateway-id (string)

[IPv6 traffic only] The ID of an egress-only Internet gateway.

--gateway-id (string)

The ID of an Internet gateway or virtual private gateway attached to your VPC.

--instance-id (string)

The ID of a NAT instance in your VPC. The operation fails if you specify an instance ID unless exactly one network interface is attached.

--nat-gateway-id (string)

[IPv4 traffic only] The ID of a NAT gateway.

--network-interface-id (string)

The ID of a network interface.

--route-table-id (string)

The ID of the route table for the route.

--vpc-peering-connection-id (string)

The ID of a VPC peering connection.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

Examples

To create a route

This example creates a route for the specified route table. The route matches all IPv4 traffic (0.0.0.0/0) and routes it to the specified Internet gateway. If the command succeeds, no output is returned.

Command:

aws ec2 create-route --route-table-id rtb-22574640 --destination-cidr-block 0.0.0.0/0 --gateway-id igw-c0a643a9

This example command creates a route in route table rtb-g8ff4ea2. The route matches traffic for the IPv4 CIDR block 10.0.0.0/16 and routes it to VPC peering connection, pcx-111aaa22. This route enables traffic to be directed to the peer VPC in the VPC peering connection. If the command succeeds, no output is returned.

Command:

aws ec2 create-route --route-table-id rtb-g8ff4ea2 --destination-cidr-block 10.0.0.0/16 --vpc-peering-connection-id pcx-1a2b3c4d

This example creates a route in the specified route table that matches all IPv6 traffic (::/0) and routes it to the specified egress-only Internet gateway.

Command:

aws ec2 create-route --route-table-id rtb-dce620b8 --destination-ipv6-cidr-block ::/0 --egress-only-internet-gateway-id eigw-01eadbd45ecd7943f

Output

Return -> (boolean)

Returns true if the request succeeds; otherwise, it returns an error.