Hey, hey, hey.
It's the Ethical Hacking Ultimate Guide.
And this is an assignment prep video to make sure you have success with the next assignment.
So notice you're going to be downloading this practice network for packet tracer.
And when you get this loaded up, you're going to be asked to enumerate the layer two addressing that
is in place here.
And you can only use the CLIA of the devices and the CLIA of the PCs.
So here's what I would do.
I would go into this P.C. and I would go to its desktop and I would go to the command prompt, as you
are permitted to do.
And I would stretch this out so I can see it well.
And I would run.
How about an IP config?
Forward slash all.
That would certainly give us all of the information about the IP configuration on this device, including
the physical address.
Now what we would want to do here is be careful to make sure we're looking at the actual Mac address
that's being used for communications.
Fast Ethernet is the default port.
It says there is an IP address and subnet mask, but further down we can see there's Bluetooth.
Look at that and notice it is a different Mac address.
We assume we are not talking Bluetooth here, but let's take a look at any other outputs.
Okay.
Just information about the Bluetooth connectivity.
Well, this is certainly the Mac address that we are after.
So there you go.
IP config all is going to help us on those workstations.
Now, what about one of the switches?
Well, to enumerate here, we're going to be ah, we're going to be going to the CLIA.
And we are going to be doing a show command.
Now, this is kind of interesting because we have to figure out, all right, what interfaces are actually
involved here.
Now we can cheat.
There is a cheat.
Let me show you this.
So if I close this window and we hover our mouse over the link, it will display the physical connections.
That's going to make it a lot easier.
But there would be a way to figure out what interface is in use.
There's always a way where there's a will.
There's a way.
So watch this.
We could go to this switch and we could enter enable mode so that we have all of the privileges available
to us here.
And I could say something like, let's see, show I no, I want to do.
How about show switch port?
Oh, this is interesting.
I wasn't sure what model this is.
And notice I don't practice for these sessions where I'm prepping you for an assignment, so just bear
with me.
Well, this is actually a good one.
How about show Mac address table?
So look at this.
This is going to give us great information.
We know the Mac address of the PC.
And now we see that it's coming in over fast ethernet zero slash for R.
So what is the MAC address on Fast Ethernet 0/4.
Let's find out.
We can do a show interface fast ethernet zero, slash four.
And if we do that, we get a whole bunch of statistics about the interface.
But if we scroll up, we're going to get the hardware address.
So there is the burned in address and there's the actual address.
Notice that the burned in address is listed and the Mac address is also listed.
What's the difference there?
The same exact thing.
Well, this is just proving to us that on Cisco devices, watch this.
You can go in and you can say interface fast Ethernet zero, slash four and you can say Mac address.
See if I'm getting this command right about Mac space address.
What's.
Come on.
I'll see.
They should allow us to change the Mac address.
Now, it might be a limitation on this sin where we cannot do it.
That's a bummer.
But I might be getting the command wrong.
I don't think so, though.
It should be Mac address to reset that address.
All right.
Well, anyways, trust me, you can reset the Mac address on an interface.
And if we were to do that, then when we do are show command that you saw me do a moment ago, which
as you recall was a show interface, fast Ethernet 0/4 and we need to be in the correct mode.
Yeah.
Let me end my config here and let's redo show interface fast ethernet 0/4.
Yeah.
They're going to show us the burned in address in addition to what the address is set to in the software.
So be aware of that.
Okay.
So notice how you can enumerate with that show Mac address table command.
Right.
We can see the Mac address of the PCs or in this case your this it's the other switch because notice
we have the switch connection and so we're getting a mac address inbound on this switch from fast Ethernet
0/1.
That MAC address is this one right here.
So now we just enumerated the MAC address of the switch to our right.
So this is switch one we're on.
And now we know the Mac address that's being sent over from switch to.
So using show interface and Show Mac address table, we can determine the hardware dressing in use on
the switches as well as the PCs.
All right.
Have fun in the next assignment.