Hi Jonathan,
set routing-instances West-New instance-type forwarding
set routing-instances West-New routing-options static route 0.0.0.0/0 next-hop st0.3
set routing-instances West-New routing-options static route 0.0.0.0/0 qualified-next-hop st0.1 preference 7
This firewall is deficated only for this VPN Traffic. So, all the traffic is matched and sent to the routing instance.
The filter is also applied in internal interface. Inbound Direction.
Thanks.