Hi Marvin,I opened a TAC case they say FTD does not load balance the traffic if it is receiving route with the same metric from two different interfaces as router do. It will install only one route and that will be based on the oldest path.

Two default routes are coming with two different interfaces with same metric, this we can see by #show ospf rib but route is installed only through one interface (see the image for ref). But in case of router, if two default routes are coming with sa...

Yes, they are coming with same metric

Version is not the issue here. just read my above reply and try to understand my point.

Please explain clearly, I don't remember the exact configuration which I had done earlier so I just did it. And the output is same.   As per my knowledge, what I have gain while doing the configuration and through text books: "If the switch is config...