The ASA 8.3 supports multiple public addresses mapped to a single internal address. For example:object service smtp service tcp destination eq smtpnat (WAN,DMZ) 1 source static any any destination static PCCW_Pri_SMTP DMZ_IronPort_2 service smtp smtp...
Let's use your example. The network address is 192.168.1.0 at both remote sites and you have the interfaces RM1 and RM2 connected to the routers. Let's say that the addresses of the routers are 192.0.2.254 and 192.0.3.254. You can set the ASA to rout...
The ASA can perform Service Based Routing, but not source routing. For example, if you want to forward the outbound SMTP traffic through a secondary ISP:route outside 0.0.0.0 0.0.0.0 192.0.2.254 1 route out-backup 0.0.0.0 0.0.0.0 172.16.0.254 2 nat (...
