Point-to-Point Tunneling Protocol

Point-to-Point Tunneling Protocol (PPTP) is a for connecting Windows NT clients and servers over  (RAS). It can be used to create a virtual private network (VPN) between computers running NT.

Apple
PPTP is no longer supported by Apple as of macOS Sierra (10.12) due to security issues. More secure VPN protocols include L2TP,, and Cisco.

Microsoft
PPTP is an extension of PPP supported by Microsoft. may be used with PPTP to provide an encrypted connection, as PPTP by itself does not use encryption. Compare: Layer Two Tunneling Protocol.