DescribeFirewall - AWS Network Firewall

DescribeFirewall

Returns the data objects for the specified firewall.

Request Syntax

{ "FirewallArn": "string", "FirewallName": "string" }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

FirewallArn

The Amazon Resource Name (ARN) of the firewall.

You must specify the ARN or the name, and you can specify both.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: ^arn:aws.*

Required: No

FirewallName

The descriptive name of the firewall. You can't change the name of a firewall after you create it.

You must specify the ARN or the name, and you can specify both.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: ^[a-zA-Z0-9-]+$

Required: No

Response Syntax

{ "Firewall": { "DeleteProtection": boolean, "Description": "string", "FirewallArn": "string", "FirewallId": "string", "FirewallName": "string", "FirewallPolicyArn": "string", "FirewallPolicyChangeProtection": boolean, "SubnetChangeProtection": boolean, "SubnetMappings": [ { "SubnetId": "string" } ], "Tags": [ { "Key": "string", "Value": "string" } ], "VpcId": "string" }, "FirewallStatus": { "ConfigurationSyncStateSummary": "string", "Status": "string", "SyncStates": { "string" : { "Attachment": { "EndpointId": "string", "Status": "string", "SubnetId": "string" }, "Config": { "string" : { "SyncStatus": "string", "UpdateToken": "string" } } } } }, "UpdateToken": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

Firewall

The configuration settings for the firewall. These settings include the firewall policy and the subnets in your VPC to use for the firewall endpoints.

Type: Firewall object

FirewallStatus

Detailed information about the current status of a Firewall. You can retrieve this for a firewall by calling DescribeFirewall and providing the firewall name and ARN.

Type: FirewallStatus object

UpdateToken

An optional token that you can use for optimistic locking. Network Firewall returns a token to your requests that access the firewall. The token marks the state of the firewall resource at the time of the request.

To make an unconditional change to the firewall, omit the token in your update request. Without the token, Network Firewall performs your updates regardless of whether the firewall has changed since you last retrieved it.

To make a conditional change to the firewall, provide the token in your update request. Network Firewall uses the token to ensure that the firewall hasn't changed since you last retrieved it. If it has changed, the operation fails with an InvalidTokenException. If this happens, retrieve the firewall again to get a current copy of it with a new token. Reapply your changes as needed, then try the operation again using the new token.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Pattern: ^([0-9a-f]{8})-([0-9a-f]{4}-){3}([0-9a-f]{12})$

Errors

For information about the errors that are common to all actions, see Common Errors.

InternalServerError

Your request is valid, but Network Firewall couldn’t perform the operation because of a system problem. Retry your request.

HTTP Status Code: 500

InvalidRequestException

The operation failed because of a problem with your request. Examples include:

  • You specified an unsupported parameter name or value.

  • You tried to update a property with a value that isn't among the available types.

  • Your request references an ARN that is malformed, or corresponds to a resource that isn't valid in the context of the request.

HTTP Status Code: 400

ResourceNotFoundException

Unable to locate a resource using the parameters that you provided.

HTTP Status Code: 400

ThrottlingException

Unable to process the request due to throttling limitations.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: