Device addition to Fortimanager
I am having issues with fortinet device to add it on Forti manager. I didn't add any device before that.
I have my firewall running with 6.0.x version, and fortimanager is running with 5.6.x, can I add my device or I need to keep the same OS on both? I can ping fortimanager from my firewall, but when I am trying to add, it is giving an error 'Probe failed'.
Do we need any policy or any particual port to be opened in policies. I am managing the firewall via trust interface.
Kindly let me know what could be the possible cause.