Pptp -point-to-point tunneling protocol you can access a private network through the internet or other public network by using a virtual private network (vpn) connection with the point-to-point tunneling protocol (pptp). developed as an extension of the point-to-point protocol (ppp), pptp tunnels and/or encapsulates, ip, ipx, or netbeui protocols inside of ppp datagrams pptp does not require a dial-up connection. it does, however, require ip connectivity between your computer and the server. not b: l2tp is an industry-standard internet tunneling protocol with roughly the same functionality as the point-to-point tunneling protocol (pptp). like pptp, l2tp encapsulates point-to-point protocol (ppp) frames, which in turn encapsulate ip, ipx, or netbeui protocols
