We currently have two co-locations each situated in different provinces. We have two ACS servers which we want to deploy at each co-location. All our network equipments are behind PIX/ASA devices. Getting them to replicate over the VPN should be easy but in our case we have overlapping Network Addresses at both ends of the tunnels.
As per Cisco data does not transit a NAT device when the two Cisco Secure ACS servers communicate and a successful database replication can occur only if the secondary ACS server perceives no change in the IP header or content of the data it receives. So that means we will not be able to Implement NAT to achiever this.
Has any one of you faced this problem of replicating ACS Database over the VPN with overlapping Network Addresses and was anyone able to successfully solve this issue using a work around ?
All provided info and comments are greatly appreciated.