Best Site-to-Site VPNs
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What are Site-to-Site VPNs?
Site-to-site VPNs are networking solutions that establish secure, encrypted connections between multiple offices, branch locations, data centers, cloud environments, and other geographically distributed networks over the internet. These solutions use virtual private network (VPN) technologies and security protocols such as IPsec and IKEv2 to protect data transmitted between networks while allowing connected locations to securely share applications, files, databases, and internal resources. Site-to-site VPNs often include features such as encrypted network tunnels, centralized configuration, automated tunnel establishment, authentication, routing management, traffic monitoring, high availability, failover protection, and network access policies. Many solutions integrate with firewalls, routers, cloud infrastructure, software-defined wide area networking (SD-WAN) platforms, and network monitoring systems to support hybrid cloud connectivity, multi-branch networking, and secure communication between distributed IT environments. By connecting separate networks through encrypted tunnels, site-to-site VPNs help organizations protect sensitive business data, simplify network administration, improve connectivity between locations, and reduce reliance on expensive dedicated private network connections. Compare and read user reviews of the best Site-to-Site VPNs currently available using the table below. This list is updated regularly.
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1
UTunnel VPN and ZTNA
Secubytes LLC
UTunnel provides Cloud VPN, ZTNA, and Mesh Networking solutions for secure remote access and seamless network connectivity. ACCESS GATEWAY: Our Cloud VPN as a Service offers swift deployment of Cloud or On-Premise VPN servers. It utilizes OpenVPN and IPSec protocols, enables policy-based access control, and lets you deploy a Business VPN network effortlessly. ONE-CLICK ACCESS: A Zero Trust Application Access (ZTAA) solution that simplifies secure access to internal business applications. It allows users to securely access them via web browsers without the need for a client application. MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution based on WireGuard enables granular access controls to business network resources and easy creation of secure mesh networks. SITE-TO-SITE VPN: The Access Gateway solution lets you easily set up secure Site-to-Site tunnels (IPSec) between UTunnel's VPN servers and hardware network gateways, firewalls & UTM systems.Starting Price: $6/user/month -
2
OpenVPN Access Server
OpenVPN
OpenVPN Access Server is a self-hosted Zero Trust Network Access (ZTNA) and business VPN solution that gives organizations full control over their own secure network. It's software organizations deploy directly into their own environment — on-premises hardware or their own cloud account on AWS, Azure, Google Cloud, or others — with tunnel traffic flowing directly between users and the server. With Access Server Link, teams can go from zero to a fully configured deployment in minutes: point-and-click setup across AWS, Azure, and GCP, automatic SSL certificate provisioning and renewal, and a web-based admin portal for managing users, certificates, and access — no SSH or manual DNS work required. Access is granted per application and per identity using domain names rather than broad network-level access, so users only reach what they're explicitly permitted to, and lateral movement is structurally blocked.Starting Price: Free Up to 2 connections -
3
Palo Alto Networks Next-Generation Firewalls
Palo Alto Networks
Palo Alto Networks offers ML-powered Next-Generation Firewalls (NGFW) that use inline deep learning to detect and stop the most evasive and unknown zero-day threats. These firewalls provide zero-delay signature updates, ensuring threats are blocked within seconds across the network. The platform delivers detailed visibility into IoT and connected devices, profiling them accurately to prevent unmanaged access. With AI-driven operations, it maximizes security effectiveness while minimizing downtime and resource costs. Recognized as a leader by industry analysts like Forrester, Palo Alto Networks’ NGFWs protect organizations of all sizes and complexities. They support a wide range of deployment environments including branch offices, data centers, public cloud, and 5G networks under a unified security architecture. -
4
SoftEther VPN
SoftEther Project
SoftEther VPN Project develops and distributes SoftEther VPN, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN session) from JavaScript, TypeScript, C# or other languages. SoftEther VPN ("SoftEther" means "Software Ethernet") is one of the world's most powerful and easy-to-use multi-protocol VPN software. It runs on Windows, Linux, Mac, FreeBSD and Solaris. SoftEther VPN is open source. You can use SoftEther for any personal or commercial use for free charge. SoftEther VPN is an optimum alternative to OpenVPN and Microsoft's VPN servers. SoftEther VPN has a clone-function of OpenVPN Server. You can integrate from OpenVPN to SoftEther VPN smoothly. SoftEther VPN is faster than OpenVPN. -
5
Barracuda CloudGen Firewall
Barracuda
Get comprehensive protection for on-premises and multi-cloud deployment using the firewall built in and for the cloud. Frictionless, cloud-hosted Advanced Threat Protection detects and blocks advanced threats, including zero-day and ransomware attacks. Gain rapid protection against the newest threats with the help of a global threat intelligence network fed by millions of data collection points. Modern cyber threats such as ransomware and advanced persistent threats, targeted attacks, and zero-day threats, require progressively sophisticated defense techniques that balance accurate threat detection with fast response times. Barracuda CloudGen Firewall offers a comprehensive set of next-generation firewall technologies to ensure real-time network protection against a broad range of network threats, vulnerabilities, and exploits, including SQL injections, cross-site scripting, denial of service attacks, trojans, viruses, worms, spyware, and many more. -
6
Sophos Firewall
Sophos
The world's best visibility, protection, and response. Superior visibility into risky activity, suspicious traffic, and advanced threats helps you regain control of your network. Powerful next-gen protection technologies like deep learning and intrusion prevention keep your organization secure. Automatic threat response instantly identifies and isolates compromised systems on your network to stop threats from spreading. XG Firewall makes it easy to extend your secure network to employees anywhere. Sophos Connect provides an intuitive VPN connection client that’s easy to deploy and configure. Give your remote workers secure access to resources on the corporate network from Windows and macOS devices. Our small, ultra-affordable XG 86(w) and SD-RED devices provide the ultimate in SOHO protection with always-on dedicated or split-tunnel VPN that’s easy to deploy and manage with a variety of flexible options. -
7
WatchGuard Firebox Cloud
WatchGuard
It’s a fact – businesses are migrating services from on-premises servers into the cloud. Email servers, web servers, customer relationship management systems (CRM), and file storage are migrating to public cloud services. With so much sensitive data moving to the cloud, security is essential. WatchGuard’s Firebox Cloud allows network administrators to extend their security perimeter to the cloud and protect servers running within a public cloud environment. WatchGuard Firebox Cloud brings the protection of WatchGuard’s leading Firebox Unified Threat Management (UTM) appliances to public cloud environments. Firebox Cloud can quickly and easily be deployed to protect a Virtual Private Cloud (VPC) from attacks such as botnets, cross-site scripting, SQL injection attempts, and other intrusion vectors. -
8
pfSense
Netgate
The pfSense project is a free network firewall distribution, based on the FreeBSD operating system with a custom kernel and including third party free software packages for additional functionality. pfSense software, with the help of the package system, is able to provide the same functionality or more of common commercial firewalls, without any of the artificial limitations. It has successfully replaced every big name commercial firewall you can imagine in numerous installations around the world, including Check Point, Cisco PIX, Cisco ASA, Juniper, Sonicwall, Netgear, Watchguard, Astaro, and more. -
9
OPNsense
OPNsense
Simple packet filters are becoming a thing of the past. Even the open-source domain is moving towards Next-Generation Firewalls. And OPNsense is a top player when it comes to intrusion detection, application control, web filtering, and anti-virus. No network is too insignificant to be spared by an attacker. Even home networks, washing machines, and smartwatches are threatened and require a secure environment. Firewalls are a component of the security concept. They protect against known and new threats to computers and networks. A firewall offers the highest level of protection if its functions are known, its operation is simple, and it is ideally positioned in the surrounding infrastructure. OPNsense accepts the challenge and meets these criteria in different ways. This book is the ideal companion for understanding, installing and setting up an OPNsense firewall.Starting Price: Free -
10
CloudConnexa
OpenVPN
CloudConnexa is OpenVPN's cloud-delivered Zero Trust Network Access (ZTNA) platform that also delivers core Security Service Edge (SSE) capabilities, replacing legacy VPN infrastructure with a fully managed, cloud-native service. Signing up provisions a private overlay network spanning 30+ global regions in a full-mesh topology for low-latency, redundant connectivity. Network and Host Connectors attach private networks, servers, and IoT devices, while OpenVPN tunnels (with Data Channel Offload for higher throughput) secure remote-user, site-to-site, and internet access. Identity-based access rules, integrated with SAML, LDAP, and SCIM, ensure users reach only authorized resources. Built-in Cyber Shield adds DNS content filtering, IDS/IPS, device identity verification, and 2FA. Domain-based routing cloaks server IPs for microsegmentation. It's all managed from one cloud dashboard, giving organizations scalable, zero-trust connectivity without running their own VPN servers.Starting Price: Free up to 5 seats -
11
VyOS
VyOS Networks
VyOS Networks is the global leader in open networking for organizations that need secure, scalable, automated networking across bare metal, cloud, and edge. Designed with flexibility and scalability in mind, VyOS provides an enterprise-grade networking platform for consistent operations and automation at scale, delivering full control and high performance with zero vendor lock-in. Our mission is to restore ownership of network infrastructure to our users through transparent, vendor-neutral networking. VyOS Universal Router provides a single, consistent networking layer across all of them: • Same operating system • Same configuration model • Same CLI and APIs • Same automation workflows • Same operational model across tenants and regions Your network, your rules.Starting Price: $7500 -
12
TLanX
TLanX
TLanX is a modern peer-to-peer mesh VPN for secure private networking. Instead of routing traffic through central gateways, devices connect directly with end-to-end encryption and automatic relay fallback. It works behind home routers, firewalls, CGNAT and cloud VMs without port forwarding. Features include fine-grained access control lists (by device, network, protocol, port and schedule), private DNS with custom internal records, smart routing with automatic path optimization, multi-network support with isolated IP spaces, site-to-site subnet advertising with HA failover, Layer 2/VLAN support (802.1Q, trunk ports, MAC learning), fleet management (remote restart, forced updates, health monitoring) and live traffic metrics. Native agents for Windows, Linux and macOS. Free plan includes 5 devices and 2 networks.Starting Price: Free -
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Oracle Cloud Infrastructure (OCI) Site-to-Site VPN is a managed IPsec service that connects an organization's on-premises network or another cloud network to a virtual cloud network (VCN) in OCI. It uses customer-premises equipment (CPE) on the remote side and OCI VPN endpoints to establish encrypted tunnels over the public internet. Administrators can create VPN connections, configure multiple tunnels for redundancy, and monitor tunnel status through the OCI Console, command-line tools, SDKs, or OCI APIs. The service supports hybrid-cloud access and network connections between OCI and remote sites or other cloud environments. Teams configure routing, security rules, and CPE settings to control traffic between networks. It is intended for cloud administrators and network teams managing hybrid connectivity.Starting Price: $0
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14
strongSwan
secunet Security Networks AG
strongSwan is an open-source implementation of the Internet Key Exchange (IKE) protocols for securing IP traffic with policy- and route-based IPsec virtual private networks. It supports IKEv2 and IKEv1, IPv4 and IPv6 tunnels, mobility, certificate and pre-shared-key authentication, EAP methods, and a modular plugin system for cryptography, credentials, and networking. Network administrators and developers use it to build VPN gateways and connect network endpoints, from remote-access setups to complex IPsec deployments. The core software runs on Linux and has been ported to FreeBSD, macOS, Windows, Android, and iOS. An Android VPN client and a NetworkManager plugin for Linux desktops are also available. The source code is licensed under GPLv2, with commercial licensing available for most components and separate commercial support options. Documentation covers installation, configuration, features, and troubleshooting.Starting Price: $0 -
15
Cato SASE
Cato Networks
Cato enables customers to gradually transform their WAN for the digital business. Cato SASE Cloud is a global converged cloud-native service that securely and optimally connects all branches, datacenters, people, and clouds. Cato can be gradually deployed to replace or augment legacy network services and security point solutions. Secure Access Service Edge (SASE) is a new enterprise networking category introduced by Gartner. SASE converges SD-WAN and network security point solutions (FWaaS, CASB, SWG, and ZTNA) into a unified, cloud-native service. In the past, network access was implemented with point solutions, managed as silos that were complex and costly. This hurt IT agility. With SASE, enterprises can reduce the time to develop new products, deliver them to the market, and respond to changes in business conditions or the competitive landscape. -
16
Azure Virtual WAN
Microsoft
Azure Virtual WAN is a networking service that brings many networking, security, and routing functionalities together to provide a single operational interface. These functionalities include branch connectivity (via connectivity automation from Virtual WAN Partner devices such as SD-WAN or VPN CPE), Site-to-site VPN connectivity, remote user VPN (Point-to-site) connectivity, private (ExpressRoute) connectivity, intra-cloud connectivity (transitive connectivity for virtual networks), VPN ExpressRoute inter-connectivity, routing, Azure Firewall, and encryption for private connectivity. -
17
TNSR
netgate
Industry-leading price-performance, scalability, and solution flexibility for all edge, campus, data center, and cloud router and site-to-site VPN needs. TNSR is a high-performance software router. TNSR software combines VPP’s extraordinary packet processing performance with Data Plane Development Kit (DPDK) and other open-source technologies to provide a turnkey high-performance router that enables businesses and service providers to address today’s edge and cloud networking needs at extremely low cost. Software as a Service (SaaS) companies that host an application and make it available to customers over the internet are in constant need of high-performance routed infrastructure performance and scale, especially as more business, education, and government clients evolve away from expensive, in-house, application development/support to software as a service. Netgate appliance and virtual machine instances for remote worker, office, and data center locations.Starting Price: $999 per year -
18
FortiGate Cloud
Fortinet
FortiGate Cloud simplifies network operations for Fortinet FortiGate and the connected devices, FortiSwitch, FortiAP, and FortiExtender for initial deployment, setup, and ongoing maintenance. FortiGate Cloud brings enterprise-grade analytics and reporting for small to medium-sized businesses enabling organizations of all sizes complete visibility into their attack surface. FortiGate Cloud is a cloud-based software-as-a-service (SaaS) offering a range of management, reporting, and analytics for FortiGate next-generation firewalls. FortiGate Cloud simplifies the initial deployment, setup, and ongoing management of FortiGate with SD-WAN functions, FortiSwitch, FortiAP, and FortiExtender with zero-touch provisioning, providing you with visibility of your entire deployment. FortiGate Cloud grows with your requirements from a single FortiGate to a complete managed security services management solution for thousands of devices across multiple customers. -
19
AWS Direct Connect
Amazon
AWS Direct Connect is a cloud service that establishes a dedicated network connection between your on-premises infrastructure and AWS, bypassing the public internet to deliver consistent, low-latency performance. This direct link enhances application performance and can reduce networking costs through lower data transfer rates. With connection speeds ranging from 50 Mbps up to 400 Gbps, AWS Direct Connect offers flexibility to meet diverse bandwidth requirements. It supports multiple encryption options, including MACsec for point-to-point encryption on higher-speed connections and AWS Site-to-Site VPN for IPsec-based security, ensuring data protection during transit. The service also features AWS Direct Connect SiteLink, enabling private, end-to-end network connections between your global offices, data centers, and colocation facilities, facilitating efficient data transfer across your network. Deployment options include dedicated connections directly from AWS.Starting Price: $0.30 per hour -
20
Meraki vMX
Cisco
Supported in AWS, Azure, Google Cloud Platform, Alibaba Cloud, and Cisco NFVIS. Only license required; available in 1, 3, or 5-year durations. IPsec and Cisco AnyConnect VPN remote worker support. 200 Mbps VPN throughput, and support for up to 50 concurrent VPN tunnels. Any MX or Z3 can establish optimized SD-WAN connectivity to a vMX in AWS. AWS charges either hourly or monthly for the use of EC2 instances. Extend SD-WAN to hybrid cloud in three clicks. SD-WAN can easily be extended to deliver optimized access to resources in public and private cloud environments with virtual MX (vMX) appliances. Monitor end-to-end health of web applications at a glance across the LAN, WAN, and application server. Securely connect branch sites with a physical MX appliance to resources in the public cloud environments in three clicks with Auto VPN. -
21
AWS Site-to-Site VPN
Amazon
AWS Site-to-Site VPN is a fully managed service that establishes secure connections between your on-premises networks and AWS resources using IPsec tunnels. Each VPN connection includes two tunnels, each terminating in a different availability zone, to provide increased availability to your VPC. If there's a device failure within AWS, your VPN connection automatically fails over to the second tunnel so that your access isn't interrupted. For globally distributed applications, the accelerated Site-to-Site VPN option provides even greater performance by working with AWS Global Accelerator to intelligently route your traffic to the nearest AWS network endpoint with the best performance. AWS Site-to-Site VPN supports both static and dynamic routing options, including BGP peering, to give you flexibility in your routing configuration. It also supports NAT traversal, allowing you to use private IP addresses on private networks behind routers with a single public IP address.Starting Price: $0.05 per hour -
22
Libreswan
Libreswan
Libreswan is an open-source implementation of IPsec and Internet Key Exchange (IKE) for building and managing encrypted virtual private network connections. It supports IKEv1 and IKEv2 and negotiates security associations between systems using IPsec, with capabilities including certificate-based authentication and NAT traversal. The software runs as an installed network service on Linux and several BSD systems, using the host operating system's IPsec stack. Administrators configure connections and credentials through configuration files and command-line tools, and can review tunnel status with the included ipsec utilities. Libreswan can be used to connect compatible IPsec peers for site-to-site or remote-access VPN deployments. It is intended for network administrators and security professionals who need to configure and operate IPsec VPN gateways or endpoints.Starting Price: $0 -
23
Google Cloud VPN
Google
Google Cloud VPN is a managed Google Cloud service for connecting a Virtual Private Cloud (VPC) network with on-premises networks, other VPC networks, or peer networks in other cloud environments through encrypted IPsec site-to-site tunnels. It offers HA VPN gateways for redundant, dynamic BGP connections and Classic VPN gateways for static-routing configurations. Teams can configure gateways and tunnels in the Google Cloud console, Google Cloud CLI, or Compute Engine API, then monitor tunnel status and metrics. Cloud VPN supports IPv4 and, with HA VPN, IPv6; it can work with Cloud Router for dynamic route exchange and interoperate with compatible third-party VPN gateways that support IPsec and IKE. It is designed for private network connectivity, not client-to-gateway remote access or routing traffic to the public internet. Pricing is usage-based and includes gateway tunnel-hours and data transfer.Starting Price: $0.05/tunnel/hour -
24
SonicWall Next Generation Firewall
SonicWall
Advanced threat protection, from small businesses to global enterprises and cloud environments. Discover network security made boundless. Whether you’re a small business or a large enterprise, whether in your home or in the cloud, SonicWall next-generation firewalls (NGFW) provide the security, control and visibility you need to maintain an effective cybersecurity posture. SonicWall’s award-winning hardware and advanced technology are built into each firewall to give you the edge on evolving threats. With solutions designed for networks of all sizes, SonicWall firewalls are designed to meet your specific security and usability needs, all at a cost that will protect your budget while securing your network. The SonicWall NSv Series virtual firewall offers you all the security advantages of a physical firewall with the operational and economic benefits of virtualization, including system scalability and agility, speed of system provisioning, simple management and cost reduction. -
25
Azure VPN Gateway
Microsoft
Azure VPN Gateway connects your on-premises networks to Azure through Site-to-Site VPNs in a similar way that you set up and connect to a remote branch office. The connectivity is secure and uses the industry-standard protocols Internet Protocol Security (IPsec) and Internet Key Exchange (IKE). Point-to-Site VPN lets you connect to your virtual machines on Azure virtual networks from anywhere, whether you are on the road, working from your favorite café, managing your deployment, or doing a demo for your customers. -
26
FortiGate NGFW
Fortinet
High threat protection performance with automated visibility to stop attacks. FortiGate NGFWs enable security-driven networking and consolidate industry-leading security capabilities such as intrusion prevention system (IPS), web filtering, secure sockets layer (SSL) inspection, and automated threat protection. Fortinet NGFWs meet the performance needs of highly scalable, hybrid IT architectures, enabling organizations to reduce complexity and manage security risks. FortiGate NGFWs are powered by artificial intelligence (AI)-driven FortiGuard Labs and deliver proactive threat protection with high-performance inspection of both clear-text and encrypted traffic (including the industry’s latest encryption standard TLS 1.3) to stay ahead of the rapidly expanding threat landscape. FortiGate NGFWs inspect traffic as it enters and leaves the network. These inspections happen at an unparalleled speed, scale, and performance and prevent everything from ransomware to DDoS attacks. -
27
Cisco Secure Firewall
Cisco
Intelligent control points everywhere, with unified policy and threat visibility. Today's dynamic applications run everywhere. To help you keep pace, Cisco's NetWORK security vision includes solutions integration. Dynamic policies work for you, coordinating protection at the network firewall and workload levels. Defending networks against increasingly sophisticated threats requires industry-leading intelligence and consistent protections everywhere. Improve your security posture today with Cisco Secure Firewall. As networks become more interconnected, achieving comprehensive threat visibility and consistent policy management is difficult. Simplify security management and gain visibility across distributed and hybrid networks. Cisco Secure Firewall sets the foundation for integrating powerful threat prevention capabilities into your existing network infrastructure, making the network a logical extension of your firewall solution. -
28
NetFoundry
NetFoundry
NetFoundry is an identity-first Zero Trust workload connectivity platform designed to secure connections between applications, APIs, machines, AI agents, sites, cloud environments, and operational technology systems. Built on the OpenZiti open source platform, it creates private, policy-controlled connections without relying on traditional inbound ports, VPN tunnels, or IP-based trust. Each workload receives a cryptographic identity, and connections are established only after mutual authentication and identity-based policy authorization. NetFoundry supports use cases including AI security, microsegmentation, site-to-site connectivity, API security, OT and IoT connectivity, and embedded Zero Trust for solution providers. Its outbound-only architecture helps reduce attack surface, limit lateral movement, and simplify connectivity across heterogeneous networks with overlapping address spaces. -
29
AWS VPN
Amazon
AWS VPN enables secure connections between on-premises networks and AWS Virtual Private Clouds (VPCs) using IPsec VPN tunnels. Each connection includes two tunnels for high availability, terminating in different availability zones to ensure resilience. It supports both static and dynamic routing with BGP, and offers customizable tunnel options, including inside tunnel IP addresses, pre-shared keys, and BGP Autonomous System Numbers (ASNs). Accelerated Site-to-Site VPN leverages AWS Global Accelerator to route traffic through the nearest AWS edge location, improving performance by reducing latency and jitter. AWS Client VPN is a fully managed, elastic VPN service that allows users to securely access AWS and on-premises resources from any location using an OpenVPN-based client. It supports authentication through Active Directory, mutual certificate authentication, and SAML-based federated authentication. -
30
Roghnu
Roghnu
Roghnu Data Portal is a centralized data and operations platform that automates the gathering, transformation, integration, reporting, and application of finance and operational data across best-of-breed and multi-tenant software solutions. With just a VPN or site-to-site connection, it ingests source application data into a single-source warehouse, applies configurable transformation and integration logic, and powers customizable applications and dashboards for analysis. Users gain instant access to up-to-date metrics without manual exports or re-entry, saving hours of labor while maintaining data integrity. Hosted in the US with SOC 2 Type II auditing, the platform ensures secure storage and compliance, and its modular architecture and open integrations let organizations plug in out-of-the-box connectors or build tailored workflows without migration headaches.
