WEBVTT

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Back in the 90s,
I had a Windows--

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I think it was Windows NT4,
server on this huge laptop.

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And back in the day, believe
it or not, not every device

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came with a built
in wireless adapter.

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So I was at a big IT conference.

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And they were renting
out network adapters

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that were wireless.

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And so I thought, this is great.

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You know, it's
cutting edge stuff.

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So I rented one, plugged it in,
and then I thought to myself,

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I wonder what would happen if
I turned on my DHCP services

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on my Windows Server.

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I wonder if I could hand out
my own IP addresses, and then
WEBVTT
X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000

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I wonder if I could hand out
my own IP addresses, and then

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my own default gateway,
my own DNS servers.

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And the answer is yes,
it was pretty easy to do.

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Now, whether it's brought in
maliciously or innocently,

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we don't want rogue DHCP servers
cluttering up our network

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and causing outages of service.

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So to solve that, we can use a
feature called DHCP snooping.

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And we'll continue the
conversation about what it is,

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and how it works, and how
to configure it as we go

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through these videos together.

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So I'll see you, my friend,
in the very next video.
