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When we have to send our traffic
over other people's networks,

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including public networks, we
want to keep all that traffic

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safe and secure and bundled up.

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And the way we do that
is with some encryption

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and hashing algorithms and
using this suite of protocols

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called IPSec.

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That's certainly
one way of doing it.

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Now, in a previous
set of videos,

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we took a look at the
fundamentals of IPSec.

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And in this set of
videos, we're going

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to take a look at putting
those pieces together

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with the good old fashioned
site-to-site tunnel using

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IPSec with Cisco IOS routers.

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And this journey continues
in the next video,
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And this journey continues
in the next video,

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and I'll see you there
in just a moment.