I solved with editing /var/efw/snat/config:
on,,192.168.10.0/24,10.128.0.0/12,,,NETMAP,DESCRIPTION,,10.143.144.112/29
and reboot
or create a script to launch after boot with this command:
iptables -t nat -I SOURCENAT 1 -j NETMAP -p all -s 192.168.10.0/24 -d 10.128.0.0/12 --to 10.143.144.112/29