StrongSwan

Name: StrongSwan
Brand: StrongSwan
Availability: InStock

Zero Trust Network Access (ZTNA)

Open Source

Self-hosted

OpenMSP Score

Reddit Impact Score

Github Score

114M

2KStars

910Forks

19KCommits

OtherLicense

May 22, 2026Last commit

Alternative Vendors

ZeroTier

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Todyl

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Open source IPsec-based VPN solution for Linux and other UNIX-based operating systems More detailed information about this vendor will be added soon.

Key Features

IKEv2 & IKEv1 Support

Full implementation of both IKE protocols with modern cryptographic algorithms

X.509 Certificate Support

Advanced certificate-based authentication with smartcard and TPM 2.0 support

Cross-Platform Compatibility

Works across Linux, Windows, macOS, Android, FreeBSD and other platforms

MOBIKE Support

Dynamic IP address and interface updates without VPN reconnection

High Availability

Cluster support with active load-sharing and failover capabilities

Pros and Cons

Pros

Enterprise Security

Military-grade IPsec encryption with extensive cryptographic algorithm support

Standards Compliance

Full RFC compliance ensures interoperability with other IPsec implementations

Flexible Deployment

Supports site-to-site, remote access, and mobile VPN scenarios

Cons

Complex Configuration

Requires deep networking knowledge and careful configuration for optimal security

Limited GUI

Primarily command-line based with limited graphical management interfaces

Feature Comparison

Comments

Nia Mensah

Jun 4, 2025

Robust IPsec VPN solution

StrongSwan handles site-to-site VPN connections reliably for client networks. Configuration flexibility is excellent and security features are comprehensive.

Ryan Coleman • NetOps Central

Jun 3, 2025

Good for secure connectivity

Using StrongSwan for client VPN infrastructure. Open source model provides transparency and performance is solid for both site-to-site and remote access.

Sara Haddad • CloudFirst MSP

Jun 2, 2025

Reliable VPN platform

StrongSwan provides dependable IPsec connectivity for diverse client requirements. Documentation is comprehensive and community support is helpful.