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User Guide

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[ aws . ec2 ]



Creates a network ACL in a VPC. Network ACLs provide an optional layer of security (in addition to security groups) for the instances in your VPC.

For more information, see Network ACLs in the Amazon Virtual Private Cloud User Guide .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


[--dry-run | --no-dry-run]
--vpc-id <value>
[--tag-specifications <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--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 .

--vpc-id (string)

The ID of the VPC.

--tag-specifications (list)

The tags to assign to the network ACL.

Shorthand Syntax:

ResourceType=string,Tags=[{Key=string,Value=string},{Key=string,Value=string}] ...

JSON Syntax:

    "ResourceType": "client-vpn-endpoint"|"customer-gateway"|"dedicated-host"|"dhcp-options"|"elastic-ip"|"elastic-gpu"|"export-image-task"|"export-instance-task"|"fleet"|"fpga-image"|"host-reservation"|"image"|"import-image-task"|"import-snapshot-task"|"instance"|"internet-gateway"|"key-pair"|"launch-template"|"local-gateway-route-table-vpc-association"|"natgateway"|"network-acl"|"network-interface"|"placement-group"|"reserved-instances"|"route-table"|"security-group"|"snapshot"|"spot-fleet-request"|"spot-instances-request"|"subnet"|"traffic-mirror-filter"|"traffic-mirror-session"|"traffic-mirror-target"|"transit-gateway"|"transit-gateway-attachment"|"transit-gateway-multicast-domain"|"transit-gateway-route-table"|"volume"|"vpc"|"vpc-peering-connection"|"vpn-connection"|"vpn-gateway"|"vpc-flow-log",
    "Tags": [
        "Key": "string",
        "Value": "string"

--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. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--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.

See 'aws help' for descriptions of global parameters.


To create a network ACL

This example creates a network ACL for the specified VPC.


aws ec2 create-network-acl --vpc-id vpc-a01106c2


    "NetworkAcl": {
        "Associations": [],
        "NetworkAclId": "acl-5fb85d36",
        "VpcId": "vpc-a01106c2",
        "Tags": [],
        "Entries": [
                "CidrBlock": "",
                "RuleNumber": 32767,
                "Protocol": "-1",
                "Egress": true,
                "RuleAction": "deny"
                "CidrBlock": "",
                "RuleNumber": 32767,
                "Protocol": "-1",
                "Egress": false,
                "RuleAction": "deny"
        "IsDefault": false


NetworkAcl -> (structure)

Information about the network ACL.

Associations -> (list)

Any associations between the network ACL and one or more subnets


Describes an association between a network ACL and a subnet.

NetworkAclAssociationId -> (string)

The ID of the association between a network ACL and a subnet.

NetworkAclId -> (string)

The ID of the network ACL.

SubnetId -> (string)

The ID of the subnet.

Entries -> (list)

One or more entries (rules) in the network ACL.


Describes an entry in a network ACL.

CidrBlock -> (string)

The IPv4 network range to allow or deny, in CIDR notation.

Egress -> (boolean)

Indicates whether the rule is an egress rule (applied to traffic leaving the subnet).

IcmpTypeCode -> (structure)

ICMP protocol: The ICMP type and code.

Code -> (integer)

The ICMP code. A value of -1 means all codes for the specified ICMP type.

Type -> (integer)

The ICMP type. A value of -1 means all types.

Ipv6CidrBlock -> (string)

The IPv6 network range to allow or deny, in CIDR notation.

PortRange -> (structure)

TCP or UDP protocols: The range of ports the rule applies to.

From -> (integer)

The first port in the range.

To -> (integer)

The last port in the range.

Protocol -> (string)

The protocol number. A value of "-1" means all protocols.

RuleAction -> (string)

Indicates whether to allow or deny the traffic that matches the rule.

RuleNumber -> (integer)

The rule number for the entry. ACL entries are processed in ascending order by rule number.

IsDefault -> (boolean)

Indicates whether this is the default network ACL for the VPC.

NetworkAclId -> (string)

The ID of the network ACL.

Tags -> (list)

Any tags assigned to the network ACL.


Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 255 Unicode characters.

VpcId -> (string)

The ID of the VPC for the network ACL.

OwnerId -> (string)

The ID of the AWS account that owns the network ACL.