AWS::WAFv2::IPSet

Note

This is the latest version of AWS WAF , named AWS WAFV2, released in November, 2019. For information, including how to migrate your AWS WAF resources from the prior release, see the AWS WAF developer guide.

Use an AWS::WAFv2::IPSet to identify web requests that originate from specific IP addresses or ranges of IP addresses. For example, if you're receiving a lot of requests from a ranges of IP addresses, you can configure AWS WAF to block them using an IP set that lists those IP addresses.

You use an IP set by providing its Amazon Resource Name (ARN) to the rule statement IPSetReferenceStatement, when you add a rule to a rule group or web ACL.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{
  "Type" : "AWS::WAFv2::IPSet",
  "Properties" : {
      "Addresses" : [ String, ... ],
      "Description" : String,
      "IPAddressVersion" : String,
      "Name" : String,
      "Scope" : String,
      "Tags" : [ Tag, ... ]
    }
}

YAML

Type: AWS::WAFv2::IPSet
Properties:
  Addresses: 
    - String
  Description: String
  IPAddressVersion: String
  Name: String
  Scope: String
  Tags: 
    - Tag

Properties

Addresses

Contains an array of strings that specifies zero or more IP addresses or blocks of IP addresses that you want AWS WAF to inspect for in incoming requests. All addresses must be specified using Classless Inter-Domain Routing (CIDR) notation. AWS WAF supports all IPv4 and IPv6 CIDR ranges except for /0.

Example address strings:

• For requests that originated from the IP address 192.0.2.44, specify 192.0.2.44/32.

• For requests that originated from IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.

• For requests that originated from the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.

• For requests that originated from IP addresses 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.

For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.

Example JSON Addresses specifications:

• Empty array: "Addresses": []

• Array with one address: "Addresses": ["192.0.2.44/32"]

• Array with three addresses: "Addresses": ["192.0.2.44/32", "192.0.2.0/24", "192.0.0.0/16"]

• INVALID specification: "Addresses": [""] INVALID

Required: Yes

Type: Array of String

Update requires: No interruption

Description

A description of the IP set that helps with identification.

Required: No

Type: String

Pattern: ^[a-zA-Z0-9=:#@/\-,.][a-zA-Z0-9+=:#@/\-,.\s]+[a-zA-Z0-9+=:#@/\-,.]{1,256}$

Update requires: No interruption

IPAddressVersion

The version of the IP addresses, either IPV4 or IPV6.

Required: Yes

Type: String

Allowed values: IPV4 | IPV6

Update requires: No interruption

Name

The name of the IP set. You cannot change the name of an IPSet after you create it.

Required: No

Type: String

Pattern: ^[0-9A-Za-z_-]{1,128}$

Update requires: Replacement

Scope

Specifies whether this is for an Amazon CloudFront distribution or for a regional application. A regional application can be an Application Load Balancer (ALB), an Amazon API Gateway REST API, an AWS AppSync GraphQL API, an Amazon Cognito user pool, an AWS App Runner service, or an AWS Verified Access instance. Valid Values are CLOUDFRONT and REGIONAL.

Note

For CLOUDFRONT, you must create your WAFv2 resources in the US East (N. Virginia) Region, us-east-1.

Required: Yes

Type: String

Allowed values: CLOUDFRONT | REGIONAL

Update requires: Replacement

Tags

Key:value pairs associated with an AWS resource. The key:value pair can be anything you define. Typically, the tag key represents a category (such as "environment") and the tag value represents a specific value within that category (such as "test," "development," or "production"). You can add up to 50 tags to each AWS resource.

Note

To modify tags on existing resources, use the AWS WAF APIs or command line interface. With AWS CloudFormation, you can only add tags to AWS WAF resources during resource creation.

Required: No

Type: Array of Tag

Minimum: 1

Update requires: No interruption

Return values

Ref

The Ref for the resource, containing the resource name, physical ID, and scope, formatted as follows: name|id|scope.

For example: my-webacl-name|1234a1a-a1b1-12a1-abcd-a123b123456|REGIONAL.

Fn::GetAtt

The Fn::GetAtt intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the Fn::GetAtt intrinsic function, see Fn::GetAtt.

Arn

The Amazon Resource Name (ARN) of the IP set.

Id

The ID of the IP set.

Examples

Create an IP set

The following shows an example IP set specification.

YAML

 SampleIPSet:
      Type: 'AWS::WAFv2::IPSet'
      Properties:
        Description: SampleIPSet
        Name: SampleIPSet
        Scope: REGIONAL
        IPAddressVersion: IPV4
        Addresses:
          - 1.2.1.1/32

JSON

 "SampleIPSet": {
      "Type": "AWS::WAFv2::IPSet",
      "Properties": {
        "Description": "SampleIPSet",
        "Name": "SampleIPSSet",
        "Scope": "REGIONAL",
        "IPAddressVersion": "IPV4",
        "Addresses": [
          "1.2.1.1/32"
        ]
      }
    }