Configure a built-in Cisco IPSec VPN on macOS without any extra software.
Go to System Settings → Network, click the “…” menu and choose “Add VPN Configuration → Cisco IPSec”.
Give the connection a name and enter the SlickVPN server address you want to use.
Enter your VPN username and password in the Authentication fields.
Under Authentication Settings, enter the SlickVPN shared secret from your account area, then Apply.
Click Connect. The status shows “Connected” and a timer starts.
SLICKVPN
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Weston, Florida 33331, USA