# Amazon VPC Network ACLs
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Another option for securing access to the cache within your VPC is to establish network access control lists (network ACLs). Network ACLs are separate from security groups, but have similar functionality to add an additional layer of security to the resources in your VPC. For more information about implementing access control using network ACLs, see [Control traffic to subnets using Network ACLs](https://docs.aws.amazon.com/vpc/latest/userguide/vpc-network-acls.html) in the *Amazon VPC User Guide*. 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon FSx. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query fsx` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).