LinuxQuestions.org - ipsec config in redhat 8

dear all,
i want to set up IPSec in redhat 8.0
i install these two rpms:
freeswan-module-2.02_2.4.20_19.9-0.i386.rpm
freeswan-userland-2.02_2.4.20_19.9-0.i386.rpm
then i use
# rpm --import freeswan-rpmsign.asc
then when i run
# rpm --checksig freeswan*.rpm ,
i see this message:
freeswan-module-2.02_2.4.20_19.9-0.i386.rpm: sha1 (md5) pgp md5 OK
freeswan-userland-2.02_2.4.20_19.9-0.i386.rpm: sha1 (md5) pgp md5 OK

BUT, when i run
# service ipsec start
to start my ipsec service, i see following message:
ipsec_setup: Starting FreeS/WAN IPsec 2.02...
ipsec_setup: insmod: ipsec: no module by that name found
ipsec_setup: modprobe: Can't locate module ipsec
ipsec_setup: kernel appears to lack KLIPS

and also when i run
# ipsec verify
i see these error messages:
Checking your system to see if IPsec got installed and started correctly:
Version check and ipsec on-path [OK]
Linux FreeS/WAN U2.02/K(no kernel code presently loaded)
Checking for KLIPS support in kernel [FAILED]
Checking for RSA private key (/ipsec.secrets) [FAILED]
ipsec showhostkey: must specify a format for the result
Checking that pluto is running [FAILED]
whack: Pluto is not running (no "/var/run/pluto.ctl")

Opportunistic Encryption DNS checks:
Looking for TXT in forward map: ataie.nisdom [MISSING]
Does the machine have at least one non-private address? [FAILED]

my valid lines in /etc/ipsec.conf file are:
version 2.0
config setup
and i can not find /etc/ipsec.secrets file.

what should i do that i did not do?
thank
your sincerely,
ehsan ataie