So let's talk a little bit about the network and data link layer security, why is it important and
how can we classify the network layer attacks, et cetera?
When the OSI model was introduced, there is no thinking of any type of security, security just wasn't
part of the design of either the USA or TCP IP models.
Further, while there may be ozone layers, there are not necessarily protocols that correspond to them.
Oh, yes, I was built to allow different layers to work without knowledge of each other, so any compromise
in lower levels directly affects the higher level.
As a result, a system is as secure as its weakest link.
In other words, security is as strong as the weakest link right to when it comes to networking, layer
two is one of the weakest links.
The protocols developed in the early years of the Internet did not require a quality of service kiosk,
for example, sure, delays in the protocols could be ignored.
So the key principles of information security, CIA triad, confidentiality, integrity and availability
were not integrated into the protocols or they are really weak.
So we can classify the network and data link layer attacks according to the effects of the attacks.
Right.
So these classes are denying the traffic between two hosts, sniffing or listening to the traffic,
compromising the transfer data and spoofing.