As stated previously, most implementations of PPP provide a limited number of authentication methods. EAP is an IETF standard extension to PPP that allows for arbitrary authentication mechanisms for the validation of a PPP connection. EAP was designed to allow the dynamic addition of authentication plug-in modules at both the client and authentication server. This allows vendors to supply a new authentication scheme at any time. EAP provides the highest flexibility in authentication uniqueness and variation.

First I just want to say what a great website you have created, very informative. I am using Avast VPN on a Windows computer and Google Chrome browser. Without a VPN I am getting download speeds up to 180 MB, and 24 MB up, using Ookla to test speeds. Using Avast VPN drops that to 40-60 MB down and 2-3 MB up, and I have tried using multiple locations from Miami to Atlanta, NY, Chicago and Jacksonville. Miami and NY are classed as P2P. My location is S Florida. When I download torrents my speed falls drastically. With one torrent downloading I get 6 MB down and up. 2 torrents simultaneously 2.5 MB down and 1.4 MB up. 3 torrents 2 MB down and 1.5 up, and 4 torrents 1 MB down and up. I have conducted dozens of tests over the course of the day to get an average of the speeds. I had previously used Private Internet Access, which was faster at the beginning of my one year subscription, but the speeds deteriorated towards the end of that one year subscription to speeds similar to Avast’s. Do you have any suggestions for a fastest VPN for streaming and torrenting? I only download torrents once or twice a month.
Are you so used to your data traveling over Wi-Fi that you've stopped worrying about the security of that data—and about who else might be spying on it, or even stealing it for nefarious purposes? If so, you are—sadly—in the majority, and you ought to consider using a viritual private network, or VPN. In fact, when PCMag conducted a survey on VPN usage, we found that a dismal 71 percent of the 1,000 respondents had never used a VPN. Even among those who support net neutrality—who you might think would tend to be well informed on technology and privacy issues—only 45 percent had used a VPN.