I wonder if there is any possibility to form a neighborship between two ASAs over an ipsec site-to-site. The ASAs are in the picture named "office" and "DC". In reality there's +40 subnets, and is often the subject to human error. The DC ASA often get new routes to remote network, either over l2l or physically connected or otherwise routed. I now wonder if there is a possiblity to run OSPF or EIGRP, or similar, across a l2l tunnel so that I would only have to add routing at the DC location, and of course proper access-lists, and those routes would propagate out to the office and possibly other branches.
After some googling, I think it seems not doable at least with OSPF - but Im not sure. I hope the picture makes more sense then my explanation.
My objective is, in short:
Be able to add or learn a route for DC ASA, and have that propagated to office. without tunnel everything or all rfc1918s (the office asa does have other remote location, so a generic rfc1918 object would not be suitable to the DC ASA).
Thanks in advance