Client Kit is a network tools to use in conjunction with VPN.
This tool provides two factor authentication when you connect VPN.

Client Authentication
- The client authentication is a part of two factor authentication. It uses not only the user name and password but also the unique information of the connected Mac for authentication.
- When you click the Authenticate button on this tool, Mac send the unique information of itself to VPN server. VPN server checks if the sending infomation is the same as the advance registerd information. In case of the same, network connection is allowd in VPN connection, otherwise VPN is disconnectd forcedly.
- In case of no registerd information in VPN server, the unique information can be registered automatically by this tool.

You must accept the license agreement below.
https://www.iij.ad.jp/svcsol/agreement/pdf/GAM010.pdf