Here's a list of the supported platforms so far: The former is more versatile, since it lets you to use any any VPN client software supporting L2TP/IPsec, but it's widely known to be a less secure choice (for good reasons - more info here) if you want to take the most secure solution, the latter is definitely your best choice: however, being it a Kerio proprietary protocol, you'll need to use the Kerio Control VPN Client only, which is not available for a most of platforms - including Android and iOS mobile browsers.

Once you do that, you can choose between enabling the IPsec VPN protocol (you can get more info about that here) or use the proprietary Kerio VPN protocol only. To configure it you can refer to the official documentation. Among the various services offered, Kerio Control also includes a proprietary VPN implementation called Kerio VPN, accessible through a proprietary VPN client called Kerio Control VPN Client. If you're a Network Administrator you'll have most likely heard of Kerio Control, an excellent Firewall, Router and Leading-Edge IPS solution developed and mantained by Kerio, Inc (we already mentioned it here).

Kerio vpn download