The Remote Authentication Dial-In User Service (RADIUS) protocol is used to provide centralized administration of authentication, authorization, and accounting (AAA) and an industry-standard security infrastructure. RADIUS is defined in RFCs 2138 and 2139 in the IETF RFC Database. RADIUS enables administrators to manage a set of authorization policies, accumulate accounting information, and access an account database from a central location.


We have tested dozens of VPN providers in our quest to find the most reliable and fast secure VPNs. During our test, we found that a lot of VPN services falls short on the minimum speed benchmark requirements we have set. Hence we excluded them from our fastest VPN list. This doesn’t mean that those VPNs are not good, but we aim to rank the ones that give top-notch VPN speed on the grounds of many factors. Below are the top 5 fast VPN providers that secured the position in our list of high-speed VPNs to use in 2018.
While privacy should be the number one deciding factor when choosing a VPN service, performance and speed are also a necessity. Our team has engineered TorGuard to provide the highest levels of security and speed from anywhere in the world. Regardless of whether you are connecting from North or South America, Europe, Asia or Oceania, our worldwide VPN network will provide you the fastest speeds possible from anywhere around the globe. TorGuard maintains 50+ VPN server locations with 3000+ Servers and our network is always expanding.
Think about it this way: If your car pulls out of your driveway, someone can follow you and see where you are going, how long you are at your destination, and when you are coming back. They might even be able to peek inside your car and learn more about you. With a VPN service, you are essentially driving into a closed parking garage, switching to a different car, and driving out, so that no one who was originally following you knows where you went.
Developed by Institute of Electrical and Electronics Engineers, VLANs allow multiple tagged LANs to share common trunking. VLANs frequently comprise only customer-owned facilities. Whereas VPLS as described in the above section (OSI Layer 1 services) supports emulation of both point-to-point and point-to-multipoint topologies, the method discussed here extends Layer 2 technologies such as 802.1d and 802.1q LAN trunking to run over transports such as Metro Ethernet.

VPN use, for example, allows an IBM employee to work from home in a Chicago suburb while accessing the company intranet located in a building in New York City, as if he was right there on the New York office’s network. The same technology can be used by consumers to bridge their phones and laptops to their home network so, while on the road, they can securely access files from their home computers.
This could be bad. I'm not terribly concerned if Comcast discovers my secret passion for muscle cars and I get more ads for car customizing kits. It might be annoying, but I'm not doing anything I really want to hide. Where the problem could occur is if ISPs start inserting their own ads in place of ads by, say, ZDNet. That could cut off the revenue that keeps websites alive, and that could have very serious repercussions.

Ironically, in many cases, the faster your standard internet connection, the more speed you “lose” in percentage. Even if you have a 50 Mbps connection and this interconnection is poor, you probably won’t be able to make the best of the VPN service. For example, if you have a 5 Mbps connection, you’ll lose just 10-20% of bandwidth, but if you have 100 Mbps, connecting to a VPN may cause you to lose more than a half of your speed.
That depends. VPN use is legal in most countries, but, according to VPN provider CyberGhost, VPN use is illegal in the United Arab Emirates, Turkey, China, Iran, North Korea, Saudi Arabia, and Russia. Vladimir Putin has recently banned VPN use in Russia. Also, be aware that the so-called proxy server alternative to VPNs is also illegal in many countries, which consider any form of IP spoofing to be illegal, not just those services labeled as VPN.
We like that the company offers a connection kill switch feature and, for those who need it, there's an option to get a dedicated IP address. VyprVPN is a standout in their effort to provide privacy, and thwart censorship. When China began its program of deep packet VPN inspection, Golden Frog's VyperVPN service added scrambled OpenVPN packets to keep the traffic flowing. 
Hello smith, to name a few fastest free VPN providers, Windscribe and Hide.me are the best in the business. Irrespective of what a free VPN can do to your online security, but there’s no denying that these two VPN providers have no impact on the speed of the internet. Windscribe gives you 11 different server, while Hide.me gives you 3 different servers for free.
HTTPS is a powerful tool that everyone should use because it helps keep sensitive browsing private at no extra cost to the people using it. But like most security standards, it has its own problems too. That little lock icon in your browser bar, which indicates the HTTPS connection, relies on a certificate “signed” by a recognized authority. But there are hundreds of such authorities, and as the EFF says, “the security of HTTPS is only as strong as the practices of the least trustworthy/competent CA [certificate authorities].” Plus, there have been plenty of news stories covering minor and even major vulnerabilities in the system. Some security professionals have worried about those least-competent authorities, spurring groups to improve on the certificate standards and prompting browsers to add warnings when you come across certificates and sites that don’t withstand scrutiny. So HTTPS is good—but like anything, it isn’t perfect.
Finally, you may want a VPN to spoof your location to download content you shouldn’t have access to, but this too has limits. A VPN used to be the go-to solution to watch U.S. Netflix overseas. That changed in 2016 when Netflix opened up to almost every country on Earth. Since then, the company has invested a lot in detecting and blocking VPN users. Even people using a VPN inside their own country will be blocked by Netflix if detected.
Overplay is easy to install and even easier to use. Its simple user interface is suitable for those who do not want complex features. All one needs to do is run the app and choose the country you want to connect to. It offers a very good speed, with any speed reduction hardly noticeable. As the software has server locations in 48 countries and over 14,000 IP addresses, anonymity is assured.
iOS, once considered a strong, impregnable operating system, is becoming vulnerable to numerous cyber threats since last few years. Apple has recently confirmed that almost all of its products are affected by the Intel major bug; means any of your most sensitive information could potentially be read. The exact nature of the problem is still unclear, and so does the danger, there are some things we all can do.
As we already discussed in our guide of high-speed VPNs, VPN vendors use all essential privacy and security protocols to give everyone a safe-house access. However, it is subject to the protocol you use. As mentioned earlier, you need to select a right fast secure VPN protocol depending on your need. Use SSTP and OpenVPN protocols always if you are using torrent or bypassing firewalls like GFW, and NSA protocol. However, if only streaming is your concern, then switch to PPTP and L2TP protocols and get blazing fast VPN speed, with a little compromise on security. PPTP and L2TP are not unsafe, but they have low-security standards layers, that on the other hand, give you top speed for streaming.

The RADIUS server receives a user-connection request from the VPN server and authenticates and authorizes the connection attempt. In addition to a yes or no response to an authentication request, RADIUS can inform the VPN server of other applicable connection parameters for this user such as maximum session time, static IP address assignment, and so on.
Extensible Authentication Protocol (EAP) is a PPP authentication protocol that allows for an arbitrary authentication method. EAP differs from the other authentication protocols in that, during the authentication phase, EAP does not actually perform authentication. Phase 2 for EAP only negotiates the use of a common EAP authentication method (known as an EAP type). The actual authentication for the negotiated EAP type is performed after Phase 2.
That said, many VPN providers are based outside the US, which complicates enforcement. Jerome continued: “Users can file complaints in a local jurisdiction, and local data protection laws may have more effective enforcement mechanisms. For example, privacy and confidentiality of communications are fundamental rights in the European Union. Data protection authorities in EU-member states are empowered to handle complaints brought by individuals and then provide users with information about the outcome of any investigation. But it is unclear how effective any of these remedies will be.”
Nevertheless, the point of a VPN is to remain private and to have your internet activity kept as private as possible. For that reason, we’re choosing Mullvad as the best overall VPN (see our full review of Mullvad). The interface needs a lot of work, but the company does a great job at privacy. Mullvad doesn’t ask for your email address, and you can mail your payment in cash if you want to. Like many other VPNs, Mullvad has a no-logging policy and doesn’t even collect any identifying metadata from your usage.
After the tunnel is established, data can be sent. The tunnel client or server uses a tunnel data transfer protocol to prepare the data for transfer. For example, when the tunnel client sends a payload to the tunnel server, the tunnel client first appends a tunnel data transfer protocol header to the payload. The client then sends the resulting encapsulated payload across the network, which routes it to the tunnel server. The tunnel server accepts the packets, removes the tunnel data transfer protocol header, and forwards the payload to the target network. Information sent between the tunnel server and the tunnel client behaves similarly.

There are also many providers who offer torrenting vpn and p2p file sharing services. How can you compare them with the best 5 vpn providers? Fast vpn service provides the comparison of the top vpn services in the market. We have checked each feature of the vpn service providers and the most important thing which is evaluated is characteristic of vpn service such as if they are helpful enough, it also provides security. Keeping in mind the price and service you can select the best vpn for your use.


A virtual link is a logical point-to-point connection between an ABR of an area and an ABR that is physically connected to the backbone area. For example, a virtual link is configured between the ABR of Area 2 and the ABR of Area 1. The ABR of Area 1 is physically connected to the backbone area. Area 1 is known as the transit area, the area across which the virtual link is created in order to logically connect Area 2 to the backbone.
Ray Walsh is one of BestVPN's resident VPN experts. Ray is currently ranked #1 VPN authority in the world by agilience.com. During his time at BestVPN.com Ray has reviewed some of the world's foremost VPNs. Ray is an advocate for digital privacy, with vast experience writing about the political and social aspects of infosec, cybersec, and data privacy. Find him @newsglug on Twitter.
The VPN server can be managed using industry-standard network management protocols and infrastructure. The computer acting as the VPN server can participate in a Simple Network Management Protocol (SNMP) environment as an SNMP agent if the Windows Server 2003 SNMP service is installed. The VPN server records management information in various object identifiers of the Internet Management Information Base (MIB) II, which is installed with the Windows Server 2003 SNMP service. Objects in the Internet MIB II are documented in RFC 1213 in the IETF RFC Database.

Even if a company is at fault for deceptive marketing practices, it still has to comply with legal requests for whatever information it does have. Jerome told us, “In the U.S., however, there is a big difference between a request for data regularly stored for business purposes and a demand that a company retain information. VPN providers are not required to keep records just in case law enforcement might need them some day.” That means many companies could provide a list of their customers, but if they practice what they preach when it comes to no-logging policies, innocent customers looking for privacy shouldn’t get swept up in these requests.
PPTP is undoubtedly one of the fastest VPN protocols that are pre-installed in major operating systems and consoles. The only downside of PPTP protocol is its low encryption method that is a prime concern of VPN users who take serious notes on privacy. It supports 128-bit encryption that is somewhat less secure than other VPN protocols. However, if your goal is to use VPN for streaming then using PPTP is a way to go. PPTP protocol is also considered as the fastest VPN protocol because it is very easy to setup, and you can get high-speed VPN connection in just a few clicks and taps.
Extensible Authentication Protocol (EAP) is a PPP authentication protocol that allows for an arbitrary authentication method. EAP differs from the other authentication protocols in that, during the authentication phase, EAP does not actually perform authentication. Phase 2 for EAP only negotiates the use of a common EAP authentication method (known as an EAP type). The actual authentication for the negotiated EAP type is performed after Phase 2.
As online privacy advocates we understand the importance of privacy and security. We understand that people have concerns about their online safety and who can access their information when connecting to the online world. This is why our VPN service places security and anonymity above all else – We strive to give our valued users a fast, secure and private browsing experience that is also reliable.
Hi Nathan, We do not censor feedback, and if that is your experience then it is your experience. I'm sorry that you seem to have had so many problems. All I can say is that for me it was just a matter of installing the software, entering my account details, choosing a server location, and hitting start. I have experienced the odd hiccup in the past, but as far as could I see all issues have now been resolved. I tested using Windows 10 (plus Android and both Mac clients). If you are finding everything too hard, then why not just take advantage of the 30-day money back guarantee and try something else?
Mobile Apps: If you’re going to spend money on a VPN service provider (or even if you use a free one, frankly), you should be able to get a consistent experience across all of your devices. Most prominent providers offer desktop and mobile solutions for individual users, and while corporate and school networks may be a bit behind the curve here, they’re catching up too. Make sure you don’t have to use two different VPNs with two different policies and agreements just because you want to secure your phone along with your laptop.
In recent times, VPN services have made giant leaps in growing from niche online products hidden away in a dark corner of the internet to almost must-have services for anyone with an internet connected device. VPN is very much in the mainstream now and luckily that broadened appeal has done wonders for the usability of the services themselves - there are some brilliant options available in 2018.
Finally, read the fine print to see if they restrict any protocols or services you wish to use the service for. If you want to use the service for file sharing, read the fine print to ensure your file sharing service isn’t blocked. Again, while it was typical to see VPN providers restrict services back in the day (in an effort to cut down on bandwidth and computing overhead) it’s more common today to find VPNs with an anything-goes policy.

Our VPN reviews instead stress value and technical excellence. The number of devices that can be used with an account is, in our opinion, more important. We also prefer VPN services with lots of servers and a good geographic distribution of those servers. VPNs that are easy to set up and use for first timers and include a well-made local client also go a long way toward getting PCMag's endorsement. And, of course, price is a major issue. The average monthly price of a VPN right now is $10.48. If a VPN is charging more, it had better be offering something compelling.
IVPN also performed well in our speed tests. Though it wasn't always the fastest in the 54 measurements we took on each service, it ranked near the top on many servers at different times of the week—especially compared with the most trustworthy services. Private Internet Access, one of the most visible, privacy-focused VPNs, had slower speeds when connecting to most servers and less reliable connections than IVPN. For US servers (which we expected to be the fastest locations because we tested from California), IVPN ranked behind only OVPN and TorGuard. We liked OVPN—especially its speed results—but we thought that company's small team and small selection of servers and locations were too limiting for some people.

How to overcome? Choose one of the best gaming VPN and boost your gaming skills in two ways; route your web traffic through uncongested pathways to allow data packets to flow freely and connect to a closest VPN server and shorten the distance between you and the gaming server. Choose none-other than ExpressVPN and connect to its fastest server near you and reduced ping time.
How much should a VPN cost? Hotspot Shield can be as little as £119.99 for a lifetime or £5.99 a month if you'd rather sign up for a year. For your money you get a decent range of features including up to five devices, private browsing, virtual locations and good if not stellar performance: we did notice a slight increase in latency when Hotspot Shield was enabled, although it wasn’t too dramatic. There’s a seven-day trial that gives you more than enough time to put it through its paces.

For local VPN issues, you have a couple of options. First, consider installing VPN software on your router and not using a VPN on your local machines. Alternatively, many VPN services offer browser plug-ins that only encrypt your browser traffic. That's not ideal from a security perspective, but it's useful when all you need to secure is your browser information.
×