
Advanced Networking Concepts
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The transport mechanism usually consists of one-to-one communication among
computers on the same network. Transport encrypts the data, not the header, and
creates a hash of the packet. Using the transport method does not allow you to use
NAT, thereby making external communications difficult. The reason lies in the
method: transport creates a hash of the packet; when it hashes the packet, it rewrites
part of the header, making the header value mismatch the rest of the packet, thereby
rendering the packet invalid.
You may ask yourself, “How does it encrypt the data?” That is a very good question.
First, the adapters create ...