[Openswan Users] Openswan and Safenet vpn client

[luca]

Hi , I try to connect a laptop with Safenet client with PSK  with 
connection by router with nat or modem to
a VPN server Debian Sarge (kernel 2.6.8) with Openswan 2.2.0 with a 
public ip :


Lan                                       Sarge                        
               Dinamic ip                     Host
192.168.122.0/24 ======22.33.44.11---------Internet--------Router with 
NAT====192.168.200.20
                                             
OpenSwan                                                                      
Safenet client vpn
                                                       #               
                                                             #
                                                       
###############################
                                                                         
TUNNEL IPSEC



/etc/ipsec.conf

config setup
        nat_traversal=yes
      
conn fw1
        left=22.33.44.11
        leftsubnet=192.168.122.0/24
        type=tunnel
        authby=secret
        pfs=no
        right=%any
        auto=add

------------------------------------------------------------------
/etc/ipsec.secrets

22.33.44.11 %any : PSK "aaabbbbbcccc"


If I test the connection with modem the tunnel is established and the 
vpn works good
but when I use a connection behind NAT it doesnt work.
What can I do?
How can I understand if nat traversal works correctly?


Thanks
cfh