Please find below the problem i am facing in one of my project.
The inside network 192.168.1.0/24,
after the remote vpn client conected he can not access the exchange server in this network with ip 192.168.1.2. The user telling that the remote PC also in 192.168.1.0/24 that is assigned by adsl ISP provided modem.
Due to that the customer asking to change the internal LAN IP from 192.168.1.0 to 172.16.0.0 range.
Is there any way to correct this issue without changeing the IP structure.