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I understand what encapsulation is but i dont get the security part of tunneling. In a VPN where is the security when packets are encapsulated? How does it actually work? Is tunneling synonymous with VPN? When you add the tunnel source and destination....wat does that mean with regards to the data packets? Are source and destination fields changed?
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I understand what encapsulation is but i dont get the security part of tunneling. In a VPN where is the security when packets are encapsulated? How does it actually work? Is tunneling synonymous with VPN? When you add the tunnel source and destination....wat does that mean with regards to the data packets? Are source and destination fields changed?

VPN Security.

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, and covers a variety of computer networks; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.