Is IP based data access supported for Serverless OpenSearch? Is there a way to access data from OpenSearch collection without using IAM user/role and without using SAML?

I have created a new OpenSearch collection with network access Policy as Public and created a data access policy with an IAM user. Using this IAM user, I am able to create/access/query indices from public network.

But my requirement is to create/access/query indices without using any IAM user login/access key from public network. Getting 403 error. How can I solve/achieve this? Do we support IP based data access policy for the Serverless OpenSearch?