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[AUDIO LOGO]

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Congratulations on
completing another skill.

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Now, it's time for a review
in the form of a quiz.

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As we go through
these questions,

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be sure to pause the video after
each question to give yourself

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the opportunity to answer
the question yourself

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before we then go
over the answer.

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That said, let's jump in
with our first question.

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What address family
is used in MPLS 6VPE

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to exchange the IPv6 prefixes
between the PE routers?

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So for this answer, let's
just go down our list here.

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Number 1 is v6vpn.

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Not even really sure what
that's supposed to be.

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That's definitely
an incorrect answer.

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There is no v6vpn.

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Same with number 2.

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L3v6.

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That's not anything either.

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These are just made-up answers.

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Number 3 is ipv6 unicast.

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Now, we could make
a certain argument

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that that might be correct
if we were talking about 6PE,

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but this is 6VPE, which means,
this is our VPN solution, which

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means that 3 would be
an incorrect answer,

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and at the same time, would
mean that 4 is a correct answer.

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It's going to use vpnv6.

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Once again, labeled unicast
is a tag that would go along

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with 6PE but not 6VPE.

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So that makes our
correct answer.

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Number 4, vpnv6.

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Next question.

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With a 6to4 tunnel, if
the local tunnel endpoint

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has an IPv6 address
of 156.45.66.37,

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what will the local
site IPv6 prefix be?

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So of course, one of
our key factors here,

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we are talking
about a 6to4 tunnel.

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And by definition, a 6to4
tunnel will always start 2002.

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So that part is a given.

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Then, of course,
what we need to do

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is we need to convert each part
of our IPv4 address into hex.

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So the 156 becomes the 9c.

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The 45 becomes the 2d.

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66 becomes 42, and
37 becomes the 25.

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So this would be the
correct IPv6 prefix

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for this site, given the
IPv4 address and the fact

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that it's a 6to4 tunnel.

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Final question.

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With a 6RD tunnel, if the
assigned IPv6 prefix is

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2001:db8::/32 and the
IPv4 endpoint address is

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156.45.66.37, what will
the site IPv6 prefix be?

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So this, of course,
is very similar

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to the previous question,
except now, it's

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6RD tunnel, which,
of course, allows

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us to use our own prefix rather
than the assigned address

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that 6-to-4 tunnels have to use.

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So what does that
mean for our address?

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Well, it quite simply means that
now, this part of the address

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is the part that's
going to be given

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because that is our 6RD prefix.

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Then we simply take
our IPv4 address.

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And once again,
convert it over to hex.

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And this is exactly
the same IPv4 address

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from the previous question.

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So hopefully, you don't have
to do the conversion again,

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but we should end
up with this answer,

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which is the
2001:db8:9c2d:4225::/64.

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So that would be the correct
local site IPv6 prefix.

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So that concludes this quiz.

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If you find that
you are missing any

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of the information necessary
to answer these questions,

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I would encourage you
to go back and review

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the referenced sources at
the bottom of each question.

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Otherwise, congratulations
on completing Exploring IPv6

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Tunnel Options.

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I hope this has
been informative,

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for you and I'd like to
thank you for viewing.

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