Hi,
We are experiencing issues when trying to initiate the VPN with AZURE gateway and our CISCO ASA 5200 device. The device is currently on software version 8.2 - a version below the one recommended by Microsoft.
The VPN tunnel is failing on phase 2 IPSec authentication, with the error that All IPSec SA proposals found to be unacceptable.
Could the software version on the ASA the issue, and do we need to upgrade to version 8.3 to resolve?
The routing configuration is also unclear - as the AZURE Virtual network is configured on a 10.4. IP range as directed. However, the actual VM gets a 10.56 IP from the DHCP server. How is the traffic routed from one range to the other? Please advise, so that I can advise our ASA admin.
Thanks for your assistance,
DVick