Hi gcheria, problem was in lab network topology. We tried to make topology that would be compliant with IWAN app design. We tried to simulate LAN network in the Hub site over the switch that didn't work because layer 2 switch was between two layer 3 routers and path trace didn't work with that topology. We also tried to simulate the provider's VPNs with hubs. but we didn't have enough hubs to separate them, so routers had overlapping paths between them that confused path trace. In the end we simplified network topology as in the following picture. We connected only one branch router on each hub router and now path trace works. ... View more