Proxmox + opnsense

Hi,

i followed some tutorial but my opnsense on proxmox won't work.
My OVH is configured as follow:
main ip 54.38.195.26
gateway 54.38.195.254
failover ip 137.74.7.20 with mac address 02:00:00:92:26:81

I created 2 bridges in proxmox. vmbr1 has the failover ip

!28|690x76

I created opnsense VM with 2 nic where the WAN has failover mac address

!13|690x114

I installed opnsense and configured the lan with 192.168.1.254 and dhcp from 192.168.1.0 to 100.
I configured WAN with my failover ip/32 and non gateway


I setup gateway from shell:

route add - net 54.38.195.254/32 -iface em0
route add default 54.38.195.254

After that I created nat outbound rule for all from WAN to any port.
But if I ping nothing works


any ideas?

thanks

Corrado