The Shrew Soft VPN Client for Windows is an IPsec Remote Access VPN Client for Windows 2000, XP, Vista and Windows 7/8 operating systems ( 32 and 64 bit versions ). It was originally developed to provide secure communications between mobile Windows hosts and open source VPN gateways that utilize standards compliant software such as ipsec-tools, OpenSWAN, StrongSWAN, Libreswan, isakmpd. It now offers many of the advanced features only found in expensive commercial software and provides compatibility for VPN appliances produced by vendors such as Cisco, Juniper, Checkpoint, Fortinet, Netgear, Linksys, Zywall and many others.
The Shrew Soft VPN Client for Windows is available in two different editions, Standard and Professional. The Standard version provides a robust feature set that allows the user to connect to a wide range of open source and commercial gateways. It contains no trial period limits, nag screens or unrelated software bundles. It is simply free for both personal and commercial use. The Professional edition offers additional features that may be helpful for users connecting to a corporate LAN. It is installed by default with a 14 day evaluation period limit. To use the Professional edition after the evaluation period has expired, a client license may be purchased from the Shrew Soft Shop.
Linux and BSD Platforms
The Shrew Soft VPN Client for Linux and BSD is an IPsec Client for FreeBSD, NetBSD and many Linux based operating systems. This version is distributed under an OSI approved open source license and is hosted in a public subversion repository. It supports most of the features available in the Windows VPN Client version with the exception of those which are not cross platform compatible.