Let us have a look at some interesting security protocols or tunnelling protocols, the first one is
data gramme transport layer security protocol, that is detailers protocol.
Now, this protocol provides security for data ground based applications by allowing them to communicate
in a way that is designed to prevent eavesdropping, tampering or message forgery.
So basically, this protocol is meant for mitigating basic security attacks like data and putting or
data forgery.
Now it is based on the stream oriented transport layer security protocol.
That is the protocol and it is intended to provide similar security guarantees.
The next protocol is layer two tunnelling protocol.
Now layer two tunneling protocol, it was created by the Internet Engineering Task Force.
That is the IETF.
It comes in handy for supporting the non IP protocols in weapons over the Internet.
Now, L2 deep, that is layer two tunneling protocol is actually a combination of Microsoft Point-to-point
Tethering Protocol BTP and Sisco's layer to forwarding protocol and to a protocol.
Now a nice L to be that is layer to Rudling protocols feature.
Is that because it works way down there at the datalink clear of the user model, that is the layer
to it can support tons of protocols beyond just TCP IP, for example, in the network packet exchange
that is IP X and the Eppalock.
It's really a great tool to implement if you have to happen to launch DCB IP networks that need to be
connected.
Why are Internet?
I just now mentioned about Point-to-point tunnelling protocol, that is the PDP protocol called this
protocol was jointly developed by Microsoft, Lucent, 3Com and many other companies.
It's not actually sanctioned by the IETF, but that doesn't mean it doesn't work.
BTB acts by combining an.
Unsecured Point-to-point protocol, that is a PP session with a second secured session using the generic
routing protocol that is the GRV protocol.
Don't worry, I am going to explain, Gary, in upcoming lecture now because BTP, that is Point-to-point
Denlinger protocol uses two different protocols.
That is beep point-to-point protocol and the GRV, that is generic routing protocol.
Generic routing encapsulation protocol.
Pardon me, it actually opens up to different network sessions, so be warned, BPD can give you some
grief when passing through Arato.
Now, this is a big reason you won't find it around nowadays.
Another reason it's going the way of the dinosaurs, that is, it is not being used nowadays is that
originally it gained popularity because it was the first virtual network protocol to be supported by
Microsoft dialing networking services.
And not too many of us depend on dialup to get connected to the Internet anymore.
That is why the point to point Internet protocol is not being used these days.
But as a fact of theory, you should always have knowledge of these protocols as it was the first VPN
protocol supported by Microsoft.
Now, another one is, in fact, you'd probably expect from a first generation security protocol that
this protocol is nowadays really vulnerable to spoofing attacks, which is pretty much being replaced
by Al Tuppy.
That is layer to transport tunneling protocol and the Internet protocol secured one.
That is the IP sac.
Well, that is it.
In this lecture, we have seen three major types of protocols, tunnelling protocols that data garam
tunnelling layer protocol, DTL, then layer to the protocol to deep and BTP, that is Point-to-point
Panelling protocol.
I hope you have understood these protocols.
If you have any doubt, feel free to answer to the Q&A section and I will see you in the next lecture.