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Initial release3.0 / January 02, 2013
Stable release
4.5 / 20 August 2021; 2 years ago (2021-08-20)[1]
Operating systemLinux
PredecessorOpenswan, FreeS/WAN
Available inC
LicenseGNU General Public License[2]

Libreswan is a fork of the Openswan IPsec VPN implementation.

Libreswan is created by almost all of the Openswan developers after a lawsuit about the ownership of the Openswan name was filed against Paul Wouters, the release manager of Openswan, in December 2012.[3][4][5] The lawsuit was later settled out of court.

Libreswan supports most of the common types of IPsec configurations people use including configurations like a host-to-host VPN, subnet to subnet VPN.[6]

See also[edit]


  1. ^ "CHANGES". Retrieved 2021-12-06.
  2. ^ "LICENSE". Retrieved 2019-03-16.
  3. ^ Wouters, Paul (2012-12-15). "Resignation from Openswan". Retrieved 2019-03-16.
  4. ^ Wouters, Paul (2012-12-16). "My resignation of The Openswan Project". Retrieved 2019-03-16.
  5. ^ Paul Wouters (2014-07-14). "History of The Libreswan Project". Retrieved 2019-03-16.
  6. ^ "Configuration examples - Libreswan". Retrieved 2019-07-12.

External links[edit]