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Use DescribeNetworkAcls with a CLI - AWS SDK Code Examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Use DescribeNetworkAcls with a CLI

The following code examples show how to use DescribeNetworkAcls.

CLI
AWS CLI

To describe your network ACLs

The following describe-network-acls example retrieves details about your network ACLs.

aws ec2 describe-network-acls

Output:

{ "NetworkAcls": [ { "Associations": [ { "NetworkAclAssociationId": "aclassoc-0c1679dc41EXAMPLE", "NetworkAclId": "acl-0ea1f54ca7EXAMPLE", "SubnetId": "subnet-0931fc2fa5EXAMPLE" } ], "Entries": [ { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 } ], "IsDefault": true, "NetworkAclId": "acl-0ea1f54ca7EXAMPLE", "Tags": [], "VpcId": "vpc-06e4ab6c6cEXAMPLE", "OwnerId": "111122223333" }, { "Associations": [], "Entries": [ { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "Egress": true, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 101 }, { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 }, { "Egress": true, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32768 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "Egress": false, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 101 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 }, { "Egress": false, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32768 } ], "IsDefault": true, "NetworkAclId": "acl-0e2a78e4e2EXAMPLE", "Tags": [], "VpcId": "vpc-03914afb3eEXAMPLE", "OwnerId": "111122223333" } ] }

For more information, see Network ACLs in the AWS VPC User Guide.

PowerShell
Tools for PowerShell

Example 1: This example describes the specified network ACL.

Get-EC2NetworkAcl -NetworkAclId acl-12345678

Output:

Associations : {aclassoc-1a2b3c4d} Entries : {Amazon.EC2.Model.NetworkAclEntry, Amazon.EC2.Model.NetworkAclEntry} IsDefault : False NetworkAclId : acl-12345678 Tags : {Name} VpcId : vpc-12345678

Example 2: This example describes the rules for the specified network ACL.

(Get-EC2NetworkAcl -NetworkAclId acl-12345678).Entries

Output:

CidrBlock : 0.0.0.0/0 Egress : True IcmpTypeCode : PortRange : Protocol : -1 RuleAction : deny RuleNumber : 32767 CidrBlock : 0.0.0.0/0 Egress : False IcmpTypeCode : PortRange : Protocol : -1 RuleAction : deny RuleNumber : 32767

Example 3: This example describes all your network ACLs.

Get-EC2NetworkAcl
AWS CLI

To describe your network ACLs

The following describe-network-acls example retrieves details about your network ACLs.

aws ec2 describe-network-acls

Output:

{ "NetworkAcls": [ { "Associations": [ { "NetworkAclAssociationId": "aclassoc-0c1679dc41EXAMPLE", "NetworkAclId": "acl-0ea1f54ca7EXAMPLE", "SubnetId": "subnet-0931fc2fa5EXAMPLE" } ], "Entries": [ { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 } ], "IsDefault": true, "NetworkAclId": "acl-0ea1f54ca7EXAMPLE", "Tags": [], "VpcId": "vpc-06e4ab6c6cEXAMPLE", "OwnerId": "111122223333" }, { "Associations": [], "Entries": [ { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "Egress": true, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 101 }, { "CidrBlock": "0.0.0.0/0", "Egress": true, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 }, { "Egress": true, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32768 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 100 }, { "Egress": false, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "allow", "RuleNumber": 101 }, { "CidrBlock": "0.0.0.0/0", "Egress": false, "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32767 }, { "Egress": false, "Ipv6CidrBlock": "::/0", "Protocol": "-1", "RuleAction": "deny", "RuleNumber": 32768 } ], "IsDefault": true, "NetworkAclId": "acl-0e2a78e4e2EXAMPLE", "Tags": [], "VpcId": "vpc-03914afb3eEXAMPLE", "OwnerId": "111122223333" } ] }

For more information, see Network ACLs in the AWS VPC User Guide.

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