SAP connectivity issues

Question

Our customer is looking for recommendations around Infrastructure. Below is the expectation. 
“SAP Systems are not directly exposed to internet and accessible within customer's intra net, In case of any failure in the corporate network whoever uses VPN/intranet won’t be able to connect to SAP systems.

Scenario1: Customers who access SAP data from web portals through AWS Gateway, there seems to be no dependency .

Scenario2: Employees and few users who directly logins to SAP and other applications via the corporate network has dependency.

To mitigate the scenario 2, Customer is looking for recommendations from AWS Infra side”.

Tracy Honeycutt · Accepted Answer

[AWS Client VPN](https://aws.amazon.com/vpn/client-vpn/) would solve for scenario 2. In the event of a corporate network outage, you can direct your users to AWS Client VPN to access SAP.

AWS Client VPN is a fully-managed remote access VPN solution used by your remote workforce to securely access resources within both AWS and your on-premises network. Fully elastic, it automatically scales up, or down, based on demand. When migrating applications to AWS, your users access them the same way before, during, and after the move. AWS Client VPN, including the software client, supports the OpenVPN protocol.

AWS Client VPN deployment instructions can be found here: [Get started with AWS Client VPN](https://docs.aws.amazon.com/vpn/latest/clientvpn-admin/cvpn-getting-started.html)

**NOTE:** [Step 5](https://docs.aws.amazon.com/vpn/latest/clientvpn-admin/cvpn-getting-started.html#cvpn-getting-started-routes
) shows you how to provide access to the internet with a route for **0.0.0.0/0**. To minimize the traffic routed over the VPN, and limit what employees can access in the AWS environment, configure the AWS Client VPN to route only the SAP IP addresses of your SAP application. For example, if SAP is using the IP address 10.0.0.1, add only a host route **10.0.0.1/32**.

SAP connectivity issues

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