Other little step was to create on switches the network 10.175.69.0/24 and then a virtual machine with ip 10.175.69.10: with this I can ping the servers on the other side.
To do this I also created a static route like in the image:
0_1540304884951_static_route_vpn_ipsec.png
so the network 10.175.69.0/24 has as gateway 192.168.0.1
Then I opened a rule on LAN interface versus 10.175.69.0/24 like in the image:
0_1540305156285_rules_vpn_ipsec .png
After this I can ping from 10.175.69.10 to 10.64.3.46 and 10.64.3.80.
How to communicate from LAN network to 10.64.3.46 and 10.64.3.80: is it possible to set a route? Where?
Please if you have any idea let me know.