VPN Server Solution using SoftEther VPN on Windows Server 2025

SoftEther VPN is one of the world's most powerful and easy-to-use multi-protocol VPN opensource software.

SoftEther VPN has a clone-function of OpenVPN Server. You can integrate from OpenVPN to SoftEther VPN smoothly. SoftEther VPN is faster than OpenVPN. SoftEther VPN also supports Microsoft SSTP VPN for Windows.

Remote-Access VPN and Site-to-Site VPN

Design and implement your VPN topology with SoftEther VPN. It virtualizes Ethernet by software-enumeration. SoftEther VPN Client implements Virtual Network Adapter, and SoftEther VPN Server implements Virtual Ethernet Switch. You can easily build both Remote-Access VPN and Site-to-Site VPN, as expansion of Ethernet-based L2 VPN. Of course, traditional IP-routing L3 based VPN can be built by SoftEther VPN.

Built-in NAT-traversal

You can setup your own VPN server behind the firewall or NAT in your company, and you can reach that VPN server in the corporate private network from your home or remote office, without any modification of firewall settings. Any deep-packet inspection firewalls cannot detect SoftEther VPN's transport packets as a VPN tunnel, because SoftEther VPN uses Ethernet over HTTPS for camouflage.

SoftEther VPN Server Features

Easy to establish both remote-access and site-to-site VPN.
SSL-VPN Tunneling on HTTPS to pass through NATs and firewalls.
Revolutionary VPN over ICMP and VPN over DNS features.
Resistance to highly-restricted firewall.
Ethernet-bridging (L2) and IP-routing (L3) over VPN.
Embedded dynamic-DNS and NAT-traversal so that no static nor fixed IP address is required.
AES 256-bit and RSA 4096-bit encryptions.
Sufficient security features such as logging and firewall inner VPN tunnel.
1Gbps-class high-speed throughput performance with low memory and CPU usage.
Windows, Linux, Mac, Android, iPhone, iPad and Windows Mobile are supported.
SSL-VPN (HTTPS) and 6 major VPN protocols (OpenVPN, IPsec, L2TP, MS-SSTP, L2TPv3 and EtherIP) are all supported as VPN tunneling underlay protocols.
The OpenVPN clone function supports legacy OpenVPN clients.
IPv4 / IPv6 dual-stack.
RADIUS / NT Active Directory Domain user authentication.
RSA certificate authentication.
Deep-inspect packet logging.
Source IP address control list.
syslog transfer function.

VPN Server Setup

Documentation can be found on: How to setup a VPN to Azure

Disclaimer: SoftEther VPN is a registered trademark of University of Tsukuba Japan & licensed under Apache License 2.0. No warranty of any kind, express or implied, is included with this software.

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