"Configuring IPSec" - пошаговое руководство по настройке IPSec тунеля на FreeBSD (с использованем Racoon IKE демона). <p>Ниже, краткий пересказ:[[END]]

<pre>
Ядро:
  options        IPSEC
  options        IPSEC_ESP
  options        IPSEC_DEBUG
  pseudo-device    gif

Ставим для управления секретными ключами - Racoon IKE:
  cd /usr/ports/security/racoon
  make install clean
  vi /usr/local/etc/racoon/racoon.conf

path include "/usr/local/etc/racoon" ;
path pre_shared_key "/usr/local/etc/racoon/psk.txt" ;
# "log" specifies logging level.  It is followed by either "notify", "debug"
# or "debug2".
#log debug;

# "padding" defines some parameter of padding.  You should not touch these.
padding
{
    maximum_length 20;    # maximum padding length.
    randomize off;        # enable randomize length.
    strict_check off;    # enable strict check.
    exclusive_tail off;    # extract last one octet.
}

# if no listen directive is specified, racoon will listen to all
# available interface addresses.
listen
{
    isakmp A.A.A.A [500];
}

# Specification of default various timer.
timer
{
    # These value can be changed per remote node.
    counter 5;        # maximum trying count to send.
    interval 20 sec;    # maximum interval to resend.
    persend 1;        # the number of packets per a send.

    # timer for waiting to complete each phase.
    phase1 30 sec;
    phase2 15 sec;
}

remote B.B.B.B
{
    #exchange_mode main,aggressive;
    exchange_mode aggressive,main;
    doi ipsec_doi;
    situation identity_only;

    nonce_size 16;
    lifetime time 60 min;    # sec,min,hour
    initial_contact on;
    support_mip6 on;
    proposal_check obey;    # obey, strict or claim

    proposal {
        encryption_algorithm blowfish;
        hash_algorithm sha1;
        authentication_method pre_shared_key ;
        dh_group 5 ;
    }
}

sainfo B.B.B.B
{
    pfs_group 5;
    lifetime time 24 hour;
    encryption_algorithm blowfish ;
    authentication_algorithm hmac_sha1;
    compression_algorithm deflate ;
}

--------------------------

Запускаем Racoon:
  /usr/local/sbin/racoon -f /usr/local/etc/racoon/racoon.conf -l

Поднимаем маршрутизацию:
   /sbin/route add -net 192.168.1.0/24 10.0.0.1
  /sbin/route add -net 10.0.0.0/8 192.168.1.1

Правим /etc/rc.conf
  ipsec_enable="YES"
  ipsec_file="/etc/ipsec.conf"
  gif_interfaces="gif0"
  ifconfig_gif0="10.0.0.1 netmask 255.0.0.0 192.168.1.1 netmask 255.255.255.0"
  gifconfig_gif0="A.A.A.A netmask 255.255.240.0 B.B.B.B netmask 255.255.240.0"

Настраиваем параметры для setkey (man setkey), для управления IPsec SA/SP базой.
  vi /etc/ipsec.conf

flush;
spdflush;
#add the policy to the SPD database
spdadd 10.0.0.0/8 192.168.1.0/24 any -P out ipsec
esp/tunnel/A.A.A.A-B.B.B.B/require;

spdadd 192.168.1.0/24 10.0.0.0/8 any -P in ipsec
esp/tunnel/B.B.B.B-A.A.A.A/require;

URL: http://www.onlamp.com/pub/a/bsd/2002/12/26/FreeBSD_Basics.html
Новость: http://www.opennet.me/opennews/art.shtml?num=1935

• Why gif IPSEC have tunnel mode,ers, 10:51 , 08-Янв-03
  • Why gif IPSEC have tunnel mode,noname, 15:45 , 27-Июл-04

Why gif? IPSEC have tunnel mode!

помоему настройка racoon описанная здесь не правильная . у меня не заработало . FreeBSD 4.10 racoon из портов.

а если использовать конфиг racoon из handbook то все ok.