My simplified network diagram is attached.
I want access from Site A to site B and vice versa through my ASA.
Both the sites are on the outside interface of ASA. Instead of doing subinterface of the outside is it possible to configure the required routing?
Thanks in adv.
In the diagram, site A, site B and the ASA are connected to each other via a L2 switch. In such a case you will not need any routing to be configured on ASA so that the traffic can flow between site A and site B. Although you will need routing to be configured on the end routers.