Ipsec no route, no party

hi all… i have a Fortinet router acting as ipsec Road Warrior with ip 192.168.12.1.

as client there are two mikrotik routers under narrated network receiving ip from server 192.168.12.2 and 192.158.12.5

from router 192.168.12.1 I ping both 192.168.12.2 and 192.168.12.5

from the router 192.168.12.2 I ping the 192.168.12.5 if in the specific ping src-address 192.168.12.2

from the router 192.168.12.5 I ping the 192.168.12.2 if in the specific ping src-address 192.168.12.5

in router 192.168.12.2 i have lan 192.168.12.0/24

in router 192.168.12.5 i have lan 192.168.120.0/24

how do i make 10.10.100.0/24 talk to 192.168.129.0/24? routes don’t work?

Client1

/ip firewall nat 
add chain=src-nat src-address=10.10.100.0/24 dst-address=192.168.120.0/24 action=accept

add chain=srcnat dst-address=192.168.120.0/24 action=src-nat to address=192.168.12.2

Client2

/ip firewall nat add chain=src-nat src-address=192.168.120.0/24 dst-address=10.10.100.0/24 action=accept

add chain=srcnat dst-address=10.10.100.0/24 action=src-nat to address=192.168.12.5

I made a more detailed post here: http://forum.mikrotik.com/t/ipsec-ikev1-road-warrior/167148/1