Install strongswan-charon by entering the following commands in the terminal:
sudo apt update sudo apt install strongswan-charon
Description:
strongSwan Internet Key Exchange daemon
The strongSwan VPN suite uses the native IPsec stack in the standard Linux kernel. It supports both the IKEv1 and IKEv2 protocols. . charon is an IPsec IKEv2 daemon which can act as an initiator or a responder. It is written from scratch using a fully multi-threaded design and a modular architecture. Various plugins can provide additional functionality.
Homepage: http://www.strongswan.org
Version: 5.6.2-1ubuntu2
Section: net