My network has 2 outgoing data lines. Using one virtual router and set static default route for the 2 interfaces. The 1st interface has its Metric set to higher priority. As I want to divide the traffic. Some zones were force to use the 2nd interface by setting "Police Based Forwarding".
Above settings work until I found that the 2nd interface was unable to reach internet due to asymmetric routing. So I create a new virtual router and a static default route for the 2nd interface.With the new virtual router. The 2nd interface can contact from/to internet. But those zones rely on it to reach internet were all down.
Some policies (Security, NAT, PBF) were review. I still have no idea what cause the problem.
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