Help with proxmox network configuration

Hi,

I've migrating my proxmox server and now I only have one IP.

In my older installation I have this:

VM's (192.168.0.XXX) ---------> (192.168.0.1) GW/FW (virtual machine) (10.1.1.254) ------------> (10.1.1.1) Proxmox Node ------------> (to internet)

IP failover (to internet) <-------------------------|


Now, I need some like this:
VM's (192.168.0.XXX) ---------> (192.168.0.1) GW/FW (virtual machine) (10.1.1.254) ------------> (10.1.1.1) Proxmox Node ------------> (to internet)

From GW/FW I can access to internet and from VM's can access to GW, but from VM's can't access to Proxmox node and can't access (obvious) to internet.

"route -n" from proxmox node:
Destination Gateway Genmask Flags Metric Ref Use Iface
X.Y.Z.0 0.0.0.0 255.255.255.0 U 0 0 0 vmbr0
10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 vmbr2
0.0.0.0 X.Y.Z.W 0.0.0.0 UG 0 0 0 vmbr0

"route -n" from gw/fw machine:
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0

Anybody help me?