So I have reset the lab environment for the walkthrough and here's our tasks.
We are to configure OSPF version 3 for address family IPv4 as shown in the top
ology.
And then once we verify basic connectivity, they want us to go ahead and update
area 2 and make it a
totally stubby area. And then the final task here is on our three, the area
border router between
the backbone area and area 1, summarize area 0 routes that begin with 10, 0
anything to a
/16 and advertise that summary into area 1. So with those lab tasks in mind, WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
/16 and advertise that summary into area 1. So with those lab tasks in mind,
let's go to the lab
environment and let's do this walkthrough. And here we go and start off by
bringing up the topology
here on the desktop. That looks great and then we'll go ahead and open up
server 1 nug right here
by simply double clicking on server 1 dash nug and we'll give that just a
moment to initialize.
Fantastic there it is. So we do show IP protocols and show IPv6 protocols just
to confirm we aren't
running any routing protocols yet. So let me pick it up to topology again and
let's start our
configuration on our one. So on our one, here's the configuration we're going WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
configuration on our one. So on our one, here's the configuration we're going
to deploy. So I have
it here in my notepad document that's on the desktop if you want to use that
for reference. So on our
one, we're going to go into configuration mode, start the router process for OS
PF V3, process ID1,
set the auto cost reference bandwidth to 1000 and that way our gigabit links
look like a better
or lower cost than the fast Ethernet. And then for these three interfaces, we
'll place all three of
them in area zero as part of address family IPv4 within OSPF V3, process ID1.
So I'm going to take that
configuration for our one, copy it to my clipboard and then go to our one and WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
configuration for our one, copy it to my clipboard and then go to our one and
paste it in. And then I
going to repeat that process for the other routers as well. So the syntax for
our two will be virtually
identical because all of its interfaces are in area zero. So we'll go to our
two, paste that in.
And then our three is our first area border router and let's look at the top
ology and that is
right here. So it has two interfaces in area zero and one interface here in
area one, which is going
to make it an area border router. So we'll take the configuration for that,
copy it and paste it in WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
copy it and paste it in
here on R3. And I'll repeat that process for our four, five, six, seven, and
eight. Now when you do
the hands on lab, I would encourage you at least for a couple of the routers,
just do it by hand,
make sure you're comfortable with the commands. And then once you've done it a
few dozen times,
feel free to start using the text document for copy and paste once you're
comfortable with the commands.
So we'll go on to our four, go to our four, paste it in, go to our five, take
the configuration
for that. All of its interfaces are in area one. So we'll copy that, go to our
five, paste it in,
and then we'll go to our six. All of its interfaces are in area two. So we'll WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
and then we'll go to our six. All of its interfaces are in area two. So we'll
copy that config,
go to our six, paste it in. And the next one is our seven. All of its
interfaces are in area one.
So we'll copy that, put in our buffer and paste it in on our seven. And then
last router is
router eight. And all of its interfaces are in area two. So we'll grab that
part of the config,
copy, go to our eight, and right click, and boom. Now we've got it. So what are
some of the commands
we could use to verify OSPF version three? Well, we could do a show OSPF V3
press enter. So WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
press enter. So
here it's enabled for address family IPv4. We could do a show run, pipe section
router. And that will
show us the configuration that we have on this router for OSPF V3. This is like
a truncated
my output a little bit. So we'll do a show run, pipe section router again.
Fantastic. Maybe do a show
OSPF V3 database. Now if you only want to see the IPv4 or IPv6, if we were
running both address families,
we could put before the word database, we could specify IPv4 or IPv6. If we don
't specify,
it'll show you all of it. So it's currently we only have IPv4, address family WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
it'll show you all of it. So it's currently we only have IPv4, address family
setup. So here's our
LSA type ones, the router LSAs, LSA type twos by the DRs. And then we have the
enter area prefix
link states. And effectively those are the LSA type threes, which in the
traditional flavor of
OSPF for IPv4, those are called summary LSAs. And effectively, they're all the
networks that are
being advertised into area two by the ABR. In this case, that ABR is router
four. And of course,
we also do show IP route and then OSPF V3. And so see OSPF V3, learned routes. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
we also do show IP route and then OSPF V3. And so see OSPF V3, learned routes.
And there are
inter area routes. And we have one intra area route right there. And that's the
network between our four
and our six. And we look at our topology, we can confirm that as well.
Fantastic. So if we want a
ping, we could try a ping across the network. We could ping from, for example,
PC8 down on the 192.168.
One network over to PC7, over on the 1017 network. Let's go and do that. So let
's go out of the tab
here for PC8. And we'll do a ping to 10.1.7.10. And that's working. So they've WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
here for PC8. And we'll do a ping to 10.1.7.10. And that's working. So they've
been traced to 10.1.7.10.
Let's show the exact path going through our eight, our six, our four, our two,
our one, our three,
our five. And then finally, hit the destination at our seven. We can also use
this PC, the client
and egg machine at 10.0.1.50. It's reachable right here in the upper and corner
. So we double click
here on client and egg, open up a window there. It's IP addresses 10.0.1.50. So
let's ping that PC7
address again. So I remember what it is is 10.1.7.10. And that seems to be WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
address again. So I remember what it is is 10.1.7.10. And that seems to be
working. We could also do a
trace from a Windows computer that's spelled TRACRT. And we'll do a dash G if
you don't bother doing name
resolution. And we'll trace to 10.1.7.10. Let's be going through our one or
three or five or seven
to help find a hits the destination. And there we have it. Fantastic. So we go
ahead and close client
nug. And let's take a look at our next task. So now that OSPFE3 for IPv4 is set
up and working,
now they want to configure area two as a totally stubby area. So let's do that WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
now they want to configure area two as a totally stubby area. So let's do that
next. So what we're
going to do is on our four, our six and our eight. We're going to specify the
area two is a stub area.
And then at the area of border router, we're going to add the keyword no dash
summary after that.
So it's not going to send all the detailed LSA type threes. It'll simply send a
default route.
And that's it. So let's configure multiple routers at the same time. Let's go
to our four right here.
And let's also use this icon right here. This is going to give us the
opportunity to send multiple
commands to multiple routers simultaneously. So if we do a config T and then a WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
commands to multiple routers simultaneously. So if we do a config T and then a
router, OSPFE3,
process ID1. And then right here we can do the area two stub if we wanted to.
And that would
apply to both address families for IPv6 and IPv4. Or if we want to do it just
for the address family
for IPv4, we type in address family and a shortcut there for IPv4, unit cast.
And then here if we say
area two stub that'll apply just for the IPv4 address family and it won't apply
to both IPv4 and
IPv6. So let's go ahead and send it over to our four, our six and our eight. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
IPv6. So let's go ahead and send it over to our four, our six and our eight.
And with those three
routers selected, we'll click on send. So now it's just a stub area. Not
totally stub, just a stub area.
So if we were to go down to for example our eight and type in end here and if
we did a show IP route,
OSPFE3 and press dinner, here now we have our default route, which is an LSA
type three that the
area border router advertised. But we still have our inter area routes because
all we're really doing
is filtering out any external LSAs LSA type fives. So if we want to make this a WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
is filtering out any external LSAs LSA type fives. So if we want to make this a
totally stub area
and also filter out all the additional LSA type threes with the exception of
the default route,
we can go back to our four and hit the up arrow key and the address family for
IPv4. And so we say area
two stub space, no summary and boom, it is done. We've just specified that this
is a totally stub area.
So we do a show OSPFE3 here at the area border router. Here's showing that I
have two areas, one normal
area, that's the backbone area and one stub area, that's area two. And in the WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
area, that's the backbone area and one stub area, that's area two. And in the
detail here for area two,
it says it's a stub and by the way, no summary LSAs are being sent into this
area. Meaning none of the
detailed routes from outside area two. And we hit the up arrow key. What we
should expect to see is
all the inter area routes with the exception of the default route should no
longer be here. And boom,
they're gone. But do we still have connectivity? Let's go ahead and do a trace
and let's trace over to
PC7. The address there is 10.1.7.10 and that should still fly all the way
around the network. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
around the network.
Awesome. Are we done? Let's take a look at our tasks and the answer is nope, we
got one more.
On our three, summarize area zero, 10 zero networks as they're being advertised
into area one. So we'll use
the range command and the address family for IPv4 to go ahead and set up that
summary route. So let's go
to the correct router and that's going to be our three where we're going to
that summary. So we'll go to
our three and to save us a little bit of typing, let's do a show run, pipe,
section router. And then we'll
go into configuration mode. Then we'll go into router configuration for OSPFE3, WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
go into configuration mode. Then we'll go into router configuration for OSPFE3,
process ID1. And then
further more we'll go into address family IPv4 unicast. And then here we'll set
up the summary. So the
routes that we're trying to summarize from are in area zero. So we'll save for
area zero. I want to go
ahead and use 10.0.0.0 with a 16 bit mask. So that'll be in dotted decimal 255.
25. Oh, you know what?
I think I do that every time I do it. I think the word range, I say the word
range, and if I often
don't put in range space and that's one of the benefits of using context
sensitive help occasionally WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
sensitive help occasionally
and we'll use zero zero. And that effectively is going to set up a summary of
10.0 anything
and any more detailed LSAs that match that range are not going to be sent
through to area one. So
let's do a question mark and that looks great. So now if we are to go down to
one of the routers,
let's take a look at our topology. Let's go down to router five. It should no
longer see the
detailed 10.0.13 or 10.0.12 or 10.0.34. But instead it should see that one 10.0
slash 16. summary
being advertised here by our three. So let's go to our five and verify that. So WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
being advertised here by our three. So let's go to our five and verify that. So
here on our five
we'll do a show IP route for OSPF V3 learned routes, press enter, and sure
enough there is our
summary route and the other detailed routes. And let's take a look at this real
quick. The detailed
routes for 10.0.12, the 10.0.13 and 10.0.24 are all being summarized into the
10.0/16. So thanks for
joining me in this set of videos as we've taken a look at working with routing
for IPv4 using the
address family for IPv4 under the umbrella and process of OSPF version three. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
address family for IPv4 under the umbrella and process of OSPF version three.
And I look forward to
seeing you in another set of videos very, very soon. And until then, I hope
this has been informative
and I'd like to thank you for viewing.