strongswan-plugin-xauth-pam 5.1.2-0ubuntu8 (amd64 binary) in ubuntu xenial

 The strongSwan VPN suite uses the native IPsec stack in the standard
 Linux kernel. It supports both the IKEv1 and IKEv2 protocols.
 .
 This package provides the strongSwan plugin for the XAuth backend that uses
 PAM modules to verify passwords.