Static routes in SRX5308 between VLANs.

Hi,
I used GS724T switch and SRX5308 firewall for my application. The switch is divided into several VLANs, and one TRUNK port is connected to the SRX5308 port (router on a stick). When I turn on the option "Enable Inter VLAN Routing", I can ping from one VLAN to another. When I turn off this option and try to define a static route, ping does not work. For example, the first static route:
Target network: 192.168.2.0
Mask: 255.255.255.0
Gateway: 192.168.2.1 (ip adress for VLAN2)
Port: VLAN2
metric 2
second static route:
Target network: 192.168.3.0
Mask: 255.255.255.0
Gateway: 192.168.3.1 (ip adress for VLAN3)
Port: VLAN3
metric 2.


firmware V4.2.0.22
best regards and please help