In the last lecture we had seen point to point to the protocol that is BP now BTP is a protocol that
allows secure access to a VPN to just make sure that you remember that for your interviews and other
networking events.
Well, in this lecture, we are going to talk about the generic routing encapsulation protocol.
That is the grb protocol, very generic routing encapsulation protocol is a tunnelling protocol that
can encapsulate many protocols inside the IP tunnels.
Some examples would be routing protocols like eEye, grb and enhanced integer, gateway protocol, gateway
routing protocol and the open source upo open source path first first protocol.
That is the always protocol and IP protocol version six opensource, short, aspart first date.
So now, uh, let me first tell you what, Jenna, regarding protocol is so basically generic routing
protocol acts as a carrier protocol for many different protocols which want to, you know, go through
the Internet, a tunnel interface, support a header for passenger protocol or encapsulated protocol
like IP or IPV six, which is the protocol being encapsulated by Jeary.
Now, Jeary Tunnels are basically they have a great header so that any third layer three, that is the
network, clearly protocol can be used through the tunnel JRD a stateless and has no flow control.
And most importantly, Jeary offers no security.
It also creates additional overhead for tunnelled packets at least 24 bytes.
So this is the VPN site here.
Let me take my laser pointer.
This is a VPN site and this is another VPN site.
And here is this tunnel which acts as a carrier protocol through the IP network.
It is the layer three of the assembled and this is the data packet which has the jihadi header right
over here.
So basically it creates a tunnel.
They are the tunneling protocols, which we have already discussed.
The PDP then details, protocols, all these are tendering protocols.
They provide a path for other protocols to pass through them.
In the next lecture, we will talk about the IP protocol, which is most important protocol when it
comes to network security practices.
So make sure that you are getting equipped yourself for the next lecture.
Before moving ahead, I would like to request you to please review our courses and read our courses.
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