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In the previous video, we already
practice with vlan. I said before,

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that if the two PC is in the different vlan,
so that two PC is in the broadcast domain.

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Now in this video, I will show you that
if two PC is in the different vlan or

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different broadcast domain, so that two PC
will not able to communicate each others.

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Let’s try it. Here let’s try to ping from PC 1
to PC 3. Here we can see that this is failed.

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Why? Because this two PC is in
the different broadcast domain.

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This 2 PC, logically connected to different
switch. Here we have logical switch for vlan 10,

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and here we also have logical switch for vlan
20. This 2 logical switch is not connected each others.

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That is why PC that connected to logical
switch vlan 10 will not able to communicate with

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PC that connected to logical switch vlan 20.
Actually we can configure so between vlan

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can communicate each others, but we will
learn about that later in the next video.

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For now, just understand that each vlan
will not able to communicate each others.

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For testing again, let’s try to send a packet

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from PC 1 to PC 4. Okay here we
can see that this is also failed.

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Okay so remember that if two PC is in the
different vlan or different broadcast domain,

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so that two PC will not able to
communicate each others.

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Although the ip address is in the same block subnet.
So here, we can see that PC 1 and PC 3

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is in the same block subnet, the ip address
of PC 1 is 192.168.1.1, and the ip address of

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PC 3 is 192.168.1.3, so the ip address of
this two PC is in the same block subnet.

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but this two PC is in the different vlan. So this
two PC still can not communicate each others.

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But You need to remember that each vlan must be
in the different block subnet. So let’s say in

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the vlan 10, the ip address is 192.168.10.0, and
in the vlan 20, the ip address is 192.168.20.0.

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In this case, we can see that different vlan
using ip address in the same block subnet.

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This is because just for learning.

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Okay I think enough for this video. Thankyou
for watching and see you on the next video.