Well, now, in this lecture, we're going to talk about the media convertors and the next generation
firewall's, we have actually talked about firewall's in the earlier sections, but I had kept a Next-Generation
Firewall that is NGF w for this lecture.
OK, so media converters are used when you need to convert one type of cabling to another type.
This might be required to convert from one type of fiber to another or from Ethernet to fiber, for
example, a figure on your screen shows and Ethernet to fiber conversion box.
Obviously the location of these devices depends on where the conversion needs to take place.
Media converters operate at layer one.
That is the physical layer.
Now the next is Next-Generation Firewall.
That is NGF w Next-Generation Firewalls, or category of devices that attempt to address traffic inspection
and application of any shortcomings of a traditional stateful firewall without hampering the performance
of other devices.
Also attempt to address these issues.
The need to use a separate internal engine to perform individual security functions.
Well, this means a packet may be examined several times by different engines to determine whether it
should be allowed into the network now Next-Generation firewalls or application of it, which means
they can distinguish between specific applications instead of allowing all the traffic coming in, are
typical ports.
Morogo, they examine packets only once during a deep packet inspection fees, which is required to
detect malware and anomalies.
Well, that's it.
We have completed all the networking devices that you needed to know for this section.
In the next section, in the next lecture, I'm sorry.
In the next lecture, we'll just see the benefits of routers and finally will conclude this section
by having a quick recap and what you actually need to remember from this section.
And I will tell you about a next section which are going to study.
So I'll see you in the next lecture where we will discuss a few benefits of routers and why do we need
routers in the Internet?