Direct Connect Connection to S3

Question

The requirement is to trasfer 1 TB of backup data from on-prem to S3.

For this use-case, I have already set up the hosted connection using Megaport and have created the Public VIF  using the AWS provided Public IPs.

Now, what I want to know is how can I connect to the specific S3 bucket and transfer the data from on-prem to S3? What are the steps required after setting up the connection and VIF? I am confused how and where to specify the bucket ARN or how does the traffic know how to route to the specific S3 bucket?

Answer

Suggest going through this Knowledge Center article:

[How can I access my Amazon S3 bucket over Direct Connect?](https://repost.aws/knowledge-center/s3-bucket-access-direct-connect)

Answer

The Public VIF advertises the Public IPv4 prefixes for S3 public endpoints which your BGP network will learn and install in routing tables on your edge router and can be cascaded down to your core routers.
When a client in your on-premise resolves S3 hostname to an IP, there will be a specific route installed in your routing table compared to the default route to the internet, then that DX is preferred over the Internet.
Here to learn more about it: https://docs.aws.amazon.com/directconnect/latest/UserGuide/routing-and-bgp.html

If you want to access the S3 over your private network using VPC endpoint, you will use Private VIF for that.

Direct Connect Connection to S3

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