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What Is VPN Tunnel And How It Works

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How Do I Get And Use A VPN

What is a VPN-tunnel?

Step 1

Sign up for ExpressVPN

Visit the order page and select the option thatâs right for you. All of our plans are fully covered by our 30-day money-back guarantee.

Step 2

Youâll immediately be invited to download the app for the device youâre using. Getting apps for all your other devices is just as easy.

Step 3

Connect to a VPN server location

Simply hit the On Button, and youâll be instantly connected to the best location for your connection. Or pick one from our global network.

Can I Also Use A VPN On My Smartphone Or Other Devices

Yes, there are a number of VPN options for smartphones and other internet-connected devices. A VPN can be essential for your mobile device if you use it to store payment information or other personal data or even just to surf the internet. Many VPN providers also offer mobile solutions – many of which can be downloaded directly from Google Play or the Apple App Store, such as Kaspersky VPN Secure Connection.

Heres What A VPN Wont Help You Do

Like any kind of service, a VPN has its limitations. Its important to know about them since youll have an easier time deciding if this is the right service for you. So, heres what you shouldnt expect a VPN service to be able to do for you:

  • Protect you from the law Were in no way saying youre a criminal or anything like that, but you must understand that you cant use VPNs to do anything that might be illegal in your country . Also, keep in mind that depending on the laws of the country where the VPN provider is located, government authorities might be able to legally force the provider to share user data with them.
  • Keep you safe from malware and viruses VPNs simply arent designed to protect your device and operating system from malware and virus infections. Thats why you should always use a reliable antivirus/antimalware solution alongside a VPN service.
  • Make you 100% anonymous online A VPN can encrypt a lot of your online data and traffic, yes, but it simply cant make it seem like youre invisible on the web. The service cant prevent websites from placing cookies on your device, finding out what type of device or desktop resolution you have, or seeing what kind of GPU you have or what operating system youre running.

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Faqs On VPN Tunnel And More

1. Is VPN Tunneling Illegal?VPN tunneling is just a piece of tech. The legality of this tech should go to that of its further usage like VPN service.

VPN itself is legal in most countries over the world, such as the US, UK, Canada, France, Germany, etc. But if you commit cybercrimes with VPN online, like carrying out ransomware attacks, hacking, phishing, or sharing pirated content, you will still be positioned by the police for further actions. Of course, some heavily-censored countries ban the VPN, like South Korea, Turkmenistan, Belarus, Turkey, China, Russia, and the United Arab Emirates, among which a few only permit VPN usage with government approval.

2.Whats the Difference Between VPN and VPN Tunnel?VPN is a service/tool many individuals and companies leverage for better net privacy, security and freedom. And VPN tunnel means the encryption connection among your machine, VPN server and target network. The process that VPN tunnel works is calling tunneling.

3.Any Recommendation on VPN with Strong Tunneling Ability?Here PandaVPN is suggested for its simplicity, fast-speed, and stability, even in nations with quite restricted online freedom. Now it has over 3000 accelerated servers in 80 countries and 170+ locations. OpenVPN, Shadowsocks and more strong protocols are embedded for flexible selection. The split tunneling feature is also available to have all or partial data go over VPN tunnel as you like.

Is It Safe To Use VPN Split Tunneling

What Is A VPN Connection And How It Works?

Using split tunneling is safer than turning off the VPN entirely. Once you turn off your VPN, all your online behavior could potentially be seen by your internet service provider and other parties, like hackers, trackers, and other online snoops.

When you use split tunneling, youre only turning off the VPN for selected sites or apps. Its running everywhere else on your browser and device. You should only use split tunneling on sites that you completely trust or have advanced security measures. To protect your privacy and security, make sure to use encrypted VPN connections when entering sensitive information or downloading online.

If you want more information on secure browsing and internet safety, make sure to check out those sections on our website.

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Private Internet Access Highly

Private Internet Access is extremely easy to use, with a 1-click setup process that takes under a minute. Its also one of the safest VPNs available, thanks to its military-grade encryption and a proven no-logs policy.

To find a working server quickly, you can always contact the customer support team over 24/7 live chat or an online form on the website. Theres also a 30-day money-back guarantee available so you can test it out risk-free.

Heres How To Surf Securely With A VPN

A VPN encrypts your surfing behavior, which can only be decoded with the help of a key. Only your computer and the VPN know this key, so your ISP cannot recognize where you are surfing. Different VPNs use different encryption processes, but generally function in three steps:

  • Once you are online, start your VPN. The VPN acts as a secure tunnel between you and the internet. Your ISP and other third parties cannot detect this tunnel.
  • Your device is now on the local network of the VPN, and your IP address can be changed to an IP address provided by the VPN server.
  • You can now surf the internet at will, as the VPN protects all your personal data.
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    Protocols Required For Tunneling

    Tunneling protocols encapsulate data packets with the help of different protocols. These protocols add another header to the payload of a data packet.

    This header possesses the information which is used in routing the data packets through the tunnel. For the process of creating a tunnel, following protocols are necessary:

    Secure Socket Tunneling Protocol

    How VPNs use tunneling and encryption

    Secure Socket Tunneling Protocol was developed by Microsoft to help protect your online activities. It is supported by default on Windows 7, 8 and 10 platforms, making it easy for Windows users to set up. It transports internet data using the Secure Socket Layer the same protocol used to power secure web connections .

    SSTP uses strong encryption procedures, making it the most secure VPN protocol available by default in Windows operating systems, and can be used instead of PPTP or L2TP/IPsec. The advantage of SSTP over PPTP and L2TP is that it cannot be easily blocked, since the traffic is transmitted over the popular HTTPS web connection.

    This is good news for those who use VPNs to access content like Netflix in other countries. However, because SSTP is a proprietary Microsoft technology, it is difficult to perform independent examinations of the codes behind the protocol to identify potential flaws.

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    Protect Your Gaming Activity

    The use of VPN services is becoming more common in the online gaming community. Many gamers are concerned about exposing their real location, while others are looking to avoid distributed denial of service attacks on their network.

    Using a VPN service hides your IP address, so you cant be identified or targeted. However, gaming is incredibly data-intensive. In this case, split tunneling allows you to protect your gaming activity while routing the rest of your traffic elsewhere.

    Osi Layer 3 Ppvpn Architectures

    This section discusses the main architectures for PPVPNs, one where the PE disambiguates duplicate addresses in a single routing instance, and the other, virtual router, in which the PE contains a virtual router instance per VPN. The former approach, and its variants, have gained the most attention.

    One of the challenges of PPVPNs involves different customers using the same address space, especially the IPv4 private address space. The provider must be able to disambiguate overlapping addresses in the multiple customers’ PPVPNs.


    In the method defined by RFC 2547, BGP extensions advertise routes in the IPv4 VPN address family, which are of the form of 12-byte strings, beginning with an 8-byte route distinguisher and ending with a 4-byte IPv4 address. RDs disambiguate otherwise duplicate addresses in the same PE.

    PEs understand the topology of each VPN, which are interconnected with MPLS tunnels either directly or via P routers. In MPLS terminology, the P routers are Label Switch Routers without awareness of VPNs.

    Virtual router PPVPN

    The virtual router architecture, as opposed to BGP/MPLS techniques, requires no modification to existing routing protocols such as BGP. By the provisioning of logically independent routing domains, the customer operating a VPN is completely responsible for the address space. In the various MPLS tunnels, the different PPVPNs are disambiguated by their label but do not need routing distinguishers.

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    What Is A VPN The Bottom Line

    So, what is a VPN then?

    To keep it simple, its a service that helps you hide your IP address, and secure your online traffic and data. It does much more than that, of course, but thats the main idea.

    Weve tried to answer all the relevant questions we could think of in this article. But if there are any other things you want to learn about VPNs, let us know in the comments, and well try to answer ASAP.

    Layer 2 Tunneling Protocol

    What is a VPN?

    L2TP is an evaluated version of the PPTP. It combines the strengths of Ciscos Layer 2 Forwarding and Microsofts PPTP approach. L2TP exists in the data link layer, i.e., the layer two of the OSI Model, which is evident in its name.

    The L2TP doesnt possess VPN encryption characteristics, which is the reason why it is used along with IPSec protocol. The IPSec protocol provides the necessary encryption. L2TP, unlike PPTP, utilizes AES-256 bit key for encryption.

    This makes it more secure compared to the PPTP. As such, L2TP has been used by many government agencies to encrypt their confidential data. It is compatible with all the Operating systems released after Windows XP and MacOS 10.3.

    The L2TP adds an extra header to every data packet which contains important routing details. This additional header results in the data packet having double encryption. While it does provide additional security, it may lead to low speeds while transmitting data.

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    Tunneling How It Works

    Lets understand how tunneling operates. Any data sent through the network is segmented into packets. Your VPN client accepts this packets and encapsulates them with some other protocols called carrier protocol or base protocol.

    Besides, VPN client is also responsible for encrypting the actual message or the data packets. Data packets are encrypted at the source with an encryption key which is only known to the VPN server.

    While your data is in the move through the public network, it remains encapsulated as well as encrypted.

    At the final destination, which is at the location of the VPN Server, the data packets are de-encrypted and DE-capsulated. After that, they are sent to the server which hosts the targeted website. Therefore to the website, it appears as though the data has been posted by the VPN server.

    Same way data flows back to the recipient from where communication first originated.

    What It Looks Like

    Site-to-site VPNs are intended to connect entire networks, usually from different locations. They work by routing traffic between two site-to-site VPN tunnels.

    For example, an organization which has offices in Los Angeles, Chicago, and New York can utilize a site-to-site VPN to connect all the offices together and secure site-to-site connectivity between all of them.

    This, in effect, creates one whole network , where users can exchange data and information with each other from completely different placesall encrypted and secured by the VPN.

    For users, there is virtually no difference in their daily working functions.

    Since site-to-site VPNs encrypt data at a gateway, users dont have to have any of the VPN software installed on their computerso long as theyre connected to the site , their data is protected.

    This is in contrast to a remote access VPN.

    If you use a VPN at home, a remote access VPN is almost certainly what it is.

    It requires you to launch the application , sign in, and keep it running for as long as you want to use it.

    So, with a site-to-site VPN, youre sparing staff in the IT department the chore of having to individually install software on every device that needs protection.

    An extranet site-to-site works in much the same way in that employees wont see the VPN or have to run any applicationsjust with the difference being only certain information is shared between the sites.

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    How Does VPN Tunnelling Work

    To connect to the internet through a VPN tunnel, you’ll first have to sign up with a virtual private network service, better known as a VPN. The VPN is the key to hiding your IP address and hiding your information from predators.

    Before visiting websites, you’ll log into your VPN providers service. When you then start searching online, the websites you visit and your internet service provider ISP, for short won’t see your IP address. Instead, they’ll see the IP address of your VPN provider, helping to protect your privacy.

    Put simply, when you click on links or download files from a site, no one will be able to see this activity. Figuratively, your VPN provider has built a tunnel around your online activity, providing a barrier between it and everyone else.

    Using a VPN alone may not be enough to protect your online privacy. Thats why you need a VPN provider that takes further measures to encrypt the data you send and receive while you are online. When your data is encrypted, it is scrambled, preventing external bodies from interpreting and deciphering it.

    When you enable this added layer of protection, businesses, governments, or even hackers, won’t be able to track your online activity.

    Hiding your IP address and encrypting the data you send and receive is a powerful combination to help keep your online browsing sessions private.

    How To Install A VPN Connection On Your Smartphone

    What is VPN and How Does it Works, Benefits & How to use it

    As already mentioned, there are also VPN connections for Android smartphones and iPhones. Fortunately, smartphone VPN services are easy to use and generally include the following:

    • The installation process usually only downloads one app from the iOS App Store or Google Play Store. Although free VPN providers exist, its wise to choose a professional provider when it comes to security.
    • The setup is extremely user-friendly, as the default settings are already mostly designed for the average smartphone user. Simply log in with your account. Most apps will then guide you through the key functions of the VPN services.
    • Switching on the VPN literally works like a light switch for many VPN apps. You will probably find the option directly on the home screen.
    • Server switching is usually done manually if you want to fake your location. Simply select the desired country from the offer.
    • Advanced setup is available for users requiring a higher degree of data protection. Depending on your VPN, you can also select other protocols for your encryption method. Diagnostics and other functions may also be available in your app. Before you subscribe, learn about these features to find the right VPN for your needs.
    • In order to surf the internet safely from now on, all you have to do is first activate the VPN connection through the app.

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    How Do VPN Servers Operate

    After the VPN tunnel is established, your device sends out encrypted information to the VPN server. It decrypts it and forwards the information to the designated web server. It also hides your real IP address before sending the data out. Instead, you will appear to have the IP address of the VPN server youre connected to.

    When the web server responds, the VPN server encrypts the data and sends it to you through your ISP. Your VPN client will decrypt the data once it reaches your device.

    What You Should Look For In A VPN

    It entirely depends on what you actually use a virtual private network for. Before selecting a provider, ask yourself three questions: How fast is it? Will it keep my data safe? Will it respect my privacy? Likewise, these are the major factors that you should look for while selecting a VPN provider.

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    How You Connect To The Web With A VPN

    Now heres how your connection to the Internet would look like if you were to use a VPN:

    Simply put, the moment you run a VPN client and initiate a connection to a VPN server, the client will start encrypting all the traffic you send to the server. Once the client establishes a connection to the server, your IP address is replaced with the servers address.

    Afterwards, the server decrypts all the data it receives from you, and forwards your connection requests to the website you want to access. After the server receives the requested data , it encrypts it, and forwards it to the client. When the VPN client on your device finally receives the traffic, it decrypts it for you.

    Over To You On VPN Tunneling

    What is a VPN and how does it actually work?

    VPN Tunneling method has resulted in providing a robust security mechanism for the protection of the internet traffic originating from your device. It not only help encapsulates the data but also encrypts it keeping your data secure and away from the prying eyes of hackers.

    You should consider using the virtual private network and VPN tunnel if you want peace of mind while using the internet and sending sensitive data through it.

    Originally published at on June 8, 2018.

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