Install strongswan-starter by entering the following commands in the terminal:
sudo apt update sudo apt install strongswan-starter
Description:
strongSwan daemon starter and configuration file parser
The strongSwan VPN suite uses the native IPsec stack in the standard Linux kernel. It supports both the IKEv1 and IKEv2 protocols. . The starter and the associated "ipsec" script control the charon daemon from the command line. It parses ipsec.conf and loads the configurations to the daemon.
Homepage: http://www.strongswan.org
Version: 5.6.2-1ubuntu2
Section: net