Start operation without any options requests initsystem to start ipsec service.
Start operation with
connectionname option is equivalent to
running first ipsec add connectionname and then
ipsec up connectionname, causing same effect
as connection configuration option auto=start
on startup.
This sets up connection to be added to the pluto internal database and establishing the connection immediately.
Note: you might also need to run ipsec rereadsecrets
when your new connection uses pre-shared key (PSK) authentication,
authby=secret because secrets keys are only being
read at startup.
ipsec.conf(5), ipsec(8), ipsec_add(8), ipsec_algparse(8), ipsec_barf(8), ipsec_briefstatus(8), ipsec_certutil(8), ipsec_checkconfig(8), ipsec_checknflog(8), ipsec_checknss(8), ipsec_connectionstatus(8), ipsec_crlutil(8), ipsec_delete(8), ipsec_down(8), ipsec_ecdsasigkey(8), ipsec_fetchcrls(8), ipsec_fipsstatus(8), ipsec_globalstatus(8), ipsec_import(8), ipsec_initnss(8), ipsec_letsencrypt(8), ipsec_listall(8), ipsec_listcacerts(8), ipsec_listcerts(8), ipsec_listcrls(8), ipsec_listen(8), ipsec_listpubkeys(8), ipsec_look(8), ipsec_modutil(8), ipsec_newhostkey(8), ipsec_ondemand(8), ipsec_pk12util(8), ipsec_pluto(8), ipsec_purgeocsp(8), ipsec_redirect(8), ipsec_replace(8), ipsec_rereadall(8), ipsec_rereadcerts(8), ipsec_rereadsecrets(8), ipsec_restart(8), ipsec_route(8), ipsec_rsasigkey(8), ipsec_setup(8), ipsec_showhostkey(8) ipsec_showroute(8), ipsec_showstates(8), ipsec_shuntstatus(8), ipsec_status(8), ipsec_stop(8), ipsec_trafficstatus(8), ipsec_unroute(8), ipsec_up(8), ipsec_verify(8), ipsec_vfychain(8), ipsec_whack(8)