Shrew Soft VPN Client is a free IPsec VPN client for Windows that supports IKEv1/IKEv2 and site-to-site or remote-access connections to many VPN gateways. This write-up covers installation, configuration for a typical IKEv2 site-to-site or remote-access profile, troubleshooting, and security considerations on Windows 11.
The most significant hurdle for Shrew Soft on Windows 11 is the kernel-mode driver signing policy. shrew soft vpn client windows 11
At the time of writing, version 2.2.2 is the latest stable build. There is no official Windows 11 build, but this version is the one we will tweak. Shrew Soft VPN Client — Windows 11 Write-up
Windows Built-in VPN: For older Cisco ASA or PIX gateways, you can often use the Windows 11 built-in L2TP/IPsec client. This avoids installing unstable third-party drivers. Compatibility Analysis 3
This enables Test Mode (watermark on desktop). Revert with bcdedit /set testsigning off.