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As the name suggests, tunneling acts like a "pipe" which penetrates through a network to connect two points. Normally activated by remote users, tunneling encrypts data into standard TCP/IP packets and encapsulates it for safe transmission across the Internet.
VPN ensures the confidentiality and integrity of information as it travels over the public internet because it requires:
Remote user identity authentication
The VPN connection behaves like this:
You connect to the Internet in the normal manner, through your ISP.
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