Encapsulation

Created: 2022-07-01
Tags: #literature

Abstract:

Why Encapsulation and De-encapsulation are important
Each Layer often name their data differently

TCP-IP Model and OSI Model follow the same method

a header is ADDED during encapsulation
a header is REMOVED during DE-encapsulation.

Encapsulation happens when sending a message

Current layer will be covered with headers of the next layer
Then next layer, then next layer
Process repeats till 1 - Physical Layer.

After data is encapsulated in 1 - Physical Layer.
Then, it's READY TO BE SENT TO RECEIVING computer.

De-encapsulation happens when receiving a message

When message is received by the second computer,
It strips information off as each passes each layer
starting at 1 - Physical Layer
working up til it reaches 7- Application Layer,

References

https://tryhackme.com/room/introtonetworking