Windows Server L2TP Site to Site VPN

Windows Server L2TP Site to Site VPN

Network Topology:

Infrastructure:

2x Windows Server

2x Windows Desktop

Both Windows Server must have 2x NIC

IP Addressing Setup:

Yishun Server 10.0.0.1 and 30.0.0.1

Yishun Desktop 10.0.0.10, Gateway 10.0.0.1

Tai Seng Server 20.0.0.1 and 30.0.0.2

Tai Seng Desktop 20.0.0.10, Gateway 20.0.0.1

Username Setup:

Create a  username for each site.

Username Yishun for Yishun site.

Username TaiSeng for Tai Seng site.

Assumption:

Before configuring Site to Site VPN,

Yishun Desktop must be able to ping Yishun Server, vice versa.

Tai Seng Desktop must be able to ping Tai Seng Server, vice versa.

Yishun Server must be able to ping Tai Seng Server, vice versa.

Remote Access role must be installed on both servers.

Local service account username must be created on both servers.

Note:

In the event of any error in connection or not able to connect. Check in both Windows Server's event logs for RasClient error message/ code.