All right, my friend.
I've got a little bit of a surprise for you
here, because we are going to do manual summarization.
But instead of doing it for IPv4, with traditional EIGRP,
we are going to do it with named EIGRP, which is going
to involve address families.
So based on the sequence of when you
watch which sets of videos as part of this course,
you may or may not have already gotten
to the EIGRP named section.
So if you haven't, that's coming up.
We'll have a full set of videos on named EIGRP configuration--
bring you up to speed.
But for now, focusing on summarization-- WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
But for now, focusing on summarization--
I'm going to walk you through the steps of both implementing
named EIGRP for IPv4, and also, implementing summarization
in named EIGRP.
So that's our plan.
Let's take a look at the topology.
And then we'll go right to the lab.
So here's our game plan.
I propose that we implement named EIGRP--
and I'll walk you through that--
for IPv4.
And then we'll do summarization here
on these two interfaces with the same summarization we WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
on these two interfaces with the same summarization we
did last time, except with named EIGRP
it's done not in the interface, specifically, of the--
interface of the router, but in the address family--
in the address family interface section of the router config.
So again, if you're brand new to named EIGRP,
we have a whole other section on it.
But I definitely want to make sure you are
aware that this option exists.
Because in troubleshooting it, if you're like, wow,
there's no summarization commands in the interface.
Well, if they're using named EIGRP,
it's going to be in the router config, WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
it's going to be in the router config,
not on the interface config.
Now to help out with this, I've got
a little document-- in fact, it may or may not be open.
But when you get to the lab, it's
this little document here called EIGRP on the desktop.
So I just minimize putty for a moment.
And let's talk about this for a few seconds, regarding named
EIGRP configuration mode.
So I'm going to just scroll down to some commands
and configuration.
Let me walk you through what these commands are doing.
So starting right here--
in configuration mode, we're saying router EIGRP. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
in configuration mode, we're saying router EIGRP.
And then instead of a number, we're
stating our dash name dash EIGRP.
No.
You can name it pretty much whatever you want to name it,
but that is the process that's running, of EIGRP.
And then, this flavor--
this method of configuring EIGRP is going
to support either IPv4 or IPv6.
What we do next is then specify the address family,
or the compartment.
Think of it like a room inside of this routing process that's
going to be for IPv4.
We say address dash family IPv4 unicast. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
We say address dash family IPv4 unicast.
And then we specify autonomous system,
and then a-s4, if that's the a-s that you
want to use for your routing protocol for IPv4.
And then you could use a network statement.
So here, let's clean this up a little bit
to make it look like what we did previously.
And I am going to--
so you can do this from scratch.
You don't have to use this notepad.
You can do it completely from scratch if you want.
I'm going to do config t there.
And then we'll create the router process.
Then we're going to go into address family for autonomous
system 4.
Then we get to use the network statements WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
Then we get to use the network statements
that we did in our previous video, which
include the 10 network.
So we'll put 10, 0 and then 0 to 0, 255 dot 255.
And I'm going to copy that and launch
what we did last time, except now we're
doing all these commands in address family configuration
mode underneath the EIGRP process.
So I'm going to go ahead and put that in a couple more times.
And then we'll add 10, 1, and 10, 2.
Now, if you include every single network and we apply this, WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
Now, if you include every single network and we apply this,
it's a whole new troubleshooting game.
Because then-- I want to point this out--
because then we have these guys that are advertising routes,
and these guys that are advertising routes.
So if we just do the 10, 0, 10, 1 and 10, 2,
that's going to roll out these bad boys right here,
and give us a more clean option of doing summarization.
So you can pick your own adventure.
Just giving you a heads up that if you enable
EIGRP everywhere on every interface,
and you start to do summarization--
you're going to have routers that
still are on those detailed routes, WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
still are on those detailed routes,
but they learned it through another path.
So having said that, let's go back to our plan.
And this is going to be great.
I'm just going to do end here.
I'm not going to enable IPv6.
And let's type in end.
I'm not going enable IPv6 address family.
We're just going to focus on IPv4.
And this is the syntax I'm going to apply to each
and every route of them.
Yeah.
Looks great.
We'll copy that.
And we'll go to this ELI and right click and paste.
One down.
There's two. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
There's two.
There's three.
There's four.
There's five.
There's seven and eight.
And is this fast to converge?
Oh my gosh.
EIGRP like, I'm ready.
Put me in, coach.
I'm ready.
So let's go ahead and do our summarization.
At R1, if we just do a show IP route for EIGRP learned routes,
I just want to verify that we have some 10, 1's, and some 10,
2's that are 24-bit routes that we have learned.
And indeed, we do.
So let's do our summarization. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
So let's do our summarization.
Just like on the previous video, we'll
do our summarization on R3 on these two interfaces,
and on R4 on these two interfaces.
But this is the big thing as far as troubleshooting--
I can't-- it's shocking when you do this the first time.
It's like, I'm looking at the interface.
There's no summarization commands.
But yeah, we're summarizing.
How is it possible?
The secret is, it's done in router config
within the address family, and then
another compartment for a specific interface
in that address family.
That's what we're going to do right now, on R3. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
That's what we're going to do right now, on R3.
I'll walk you through it.
So let's go to the right router--
the correct router, which is R3.
And we're going to go to fig t.
And then I'm going to grab--
just going to copy paste this--
save me some typing.
There we go.
We're in router configuration mode.
I'm going to go in to address family,
or IPv4 unicast for a-s4.
Fantastic.
And now, in that address family, look at this.
With a question mark, we are now going to specify af interface.
And that takes us into a logical sub container
within the address family for IPv4, where we can do things WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
within the address family for IPv4, where we can do things
like passive interface, or we can do things
like what we're about to do-- a summary address.
Let's go ahead and do af interface.
And we are going to specify--
I need to look at my topology again.
We'll do that.
Let's go to gig 1 0 first.
So we'll go to gig 1 slash 0.
And I don't know there's an option for a range option here.
But-- so interface gig 1/0 and then
here is where we get to specify our summary. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
here is where we get to specify our summary.
Now we don't have to put IP, because we're in the address
family, or IPv4 unicast.
We also-- it also knows that the a-s is and everything else.
So here's just summary address, and then 10.1.00/16.
And then we hit the up arrow key a couple of times.
And we go to the interface of fa--
let me take a look at my notes here--
fa4/0 [INAUDIBLE].
So fa4/0, hit the up arrow key a couple WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
So fa4/0, hit the up arrow key a couple
of times, same summary address.
And then we'd go and do the same thing on R4.
So over on R4, and we'll do a config t.
And I'm going to copy paste the router--
router EIGRP.
There's the name.
Boom.
I'm going to go ahead and go into the address
family for ipv4 unicast cars for autonomous system number 4.
Boom.
And then, after that--
my boom was premature.
Press enter.
Boom.
And now we can do af interface.
And the interfaces we need to modify here WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
And the interfaces we need to modify here
are going to be gig 2, 0 and fa 4/1.
[INAUDIBLE] to the gig 2/0.
And we'll specify the summary.
So summary address is going to be 10.2 like that.
And then we'll go to af interface.
And this is going to be fa 4/1.
And I'm going to double check my work there.
Is it really-- yep.
There it is, 4/1.
And we'll do the summary there, as well.
WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
And so let me give you a show run section router.
So here is our router configuration for named EIGRP.
Here's address family for IPv4 unicast a-s number 4.
On this interface, we're doing a summary address of 10, 2.
We're doing the same thing on this interface, of fa 4/1.
We also have, in the config, the three network statements
for 10, 0, 10, 1, 10, 2, which are
enabling the interfaces to belong and participate
in EIGRP. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
in EIGRP.
And so now the test is, did this work?
If we go back to R1, and we do a show--
up arrow key.
Show IP route for EIGRP learned routes.
How many 10, 1's do we have?
How many 10 2's do we have?
We just have the one summary route.
And we go back to R3 or R4, and do
a show IP route for EIGRP learned routes.
There we have our discard route, as well.
That's created on the router.
If it's doing the summarization, so that if some wacky--
not wacky, but some packet comes in that's
within the range of the summary, but we WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
within the range of the summary, but we
have a more detailed route--
this 16-bit route will catch it and boom--
spike it into the ground.
So thanks for joining me in this set of videos
regarding summarization.
Now, other videos in this series regarding OSPF and also
some additional EIGRP are going to cover additional topics
with additional summarization and troubleshooting
and also named EIGRP.
So you'll have an opportunity to practice
that more and more as you continue through the course.
Thanks for joining me on this set of videos.
And I hope see you on the next one.
Meanwhile, I hope this has been informative for you.
And I'd like to thank you for viewing. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
And I'd like to thank you for viewing.