I have Cisco ASA on both the locations & wanted to establish site-to-site VPN with the same subnet. Reason behind to setup the same subnet on both the locations is, I am planning to setup a MS-Exchange Server 2000, one as a Primary on Location-A & Secondary in Location-B, this configuration requires to sync each other only when it fall under the same subnet. One server I will be placing it in Location-A & the IP is 192.168.1.1. On Location-B Secondary MS-Exchange IP is 192.168.1.2. requirement, when I ping 192.168.1.2 on Primary Server from Location-A it has to ping on the Location-B's MS-Exchange Server.
Any Idea how to setup same subnet VPN on cisco ASA?