NAME

       ipsec-_stackmanager - internal script to bring up kernel components for Libreswan

SYNOPSIS

       ipsec _stackmanager {start | stop}

DESCRIPTION

       ipsec _stackmanager is called from within the init sub-system (systemd, upstart, sysv initscripts) to
       bring up the Libreswan kernel component as configured via the protostack= option in the ipsec.conf
       configuration file.

       This involves loading and optionally unloading of the required kernel modules. Because the Linux kernel
       cannot autodetect most crypto related drivers on-demand, _stackmanager handles loading the modules for
       the specific IPsec stack.

SEE ALSO

       ip(8), ipsec.conf(5), ipsec(8), pluto(8)

HISTORY

       This script was introduced in Libreswan. On the older Openswan systems, this functionality was split over
       various script files such as ipsec _startnetkey, ipsec _startklips, ipsec _realsetup and ipsec setup. Man
       page written for the Libreswan project <https://libreswan.org/> by Paul Wouters.

AUTHOR

       Paul Wouters

Libreswan 5.2                                      07/30/2025                             IPSEC-_STACKMANAGER(8)