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In the previous video, we walked through an example of configuring OSPF for IPv

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6 using

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the traditional method to do that.

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In this video, I'd like to share with you yet another option for configuring OS

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PF, but

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this time using a feature called OSPF V3 that supports address families that we

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can

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use with either IPv4 or IPv6 or bull.

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So to do this, I do want to clear out any routing protocols that I've currently

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configured,

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so I'm going to go ahead and in the notepad document here, I have a little
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so I'm going to go ahead and in the notepad document here, I have a little

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section that

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will allow you to clear off any dynamic routing protocols.

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So let me go add to this thing, show and show IPv6 protocol, just to make sure

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we've

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cleaned it all up.

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All right, so I'm going to go ahead and take that.

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It just removes any routing that we've done so far, right click, copy.

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Then I'm going to click on this icon right here.

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So what this is going to do, it allows us to go ahead and put what we want to

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send

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out to our routers, and then we can send it out to multiple routers at the same

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time.

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So I'm going to right click and paste that in, and then I'm going to select all
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So I'm going to right click and paste that in, and then I'm going to select all

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, select

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all my devices, except I don't want to send this to my virtual PCs because they

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have

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no clue what this commands mean.

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And then we'll go ahead and let me actually add a little couple of spaces there

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, and then

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we'll send it.

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All right, so anything we configured in the previous videos as far as routing

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goes is

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done. And for IPv4 show IP protocol, no dynamic routing protocols running, and

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then for

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IPv6, no dynamic routing protocols running.

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Fantastic.

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So this gives us an opportunity now to configure OSPF version three using the
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So this gives us an opportunity now to configure OSPF version three using the

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OSPF V3 option.

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So here's the syntax to make it happen.

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We go into configuration mode, we're going to type in router, instead of IPv6

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router OSPF

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V3, and then the process ID of one in this example.

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I'm going to once again set the auto cost reference bandwidth.

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And behind the scenes, what it's actually doing, it's setting up address

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families for IPv4

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and IPv6 to support one or both of those protocols running OSPF.
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and IPv6 to support one or both of those protocols running OSPF.

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So then I'm going to go into each interface, and I'm going to enable OSPF on

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each of the

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interfaces for both IPv4 and IPv6.

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So here's an example of doing that.

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We're going to interface gig 0, 0 on R1, we'll say OSPF V3, 1, that's the

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process ID1,

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IPv4, assign it to area 0, that interface.

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And the same thing for IPv6, using the keyword IPv6 instead, and we'll repeat

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that process.

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And then as we go down to another example here, here is R3, and now R3 is in
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And then as we go down to another example here, here is R3, and now R3 is in

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two areas.

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It's got two interfaces in area 0, and it's going to have one interface in area

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1.

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So the syntax is almost identical, it's just specifying a different area.

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So what I like to do is go ahead and put these in on the routers.

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Now as far as the syntax, you don't need to worry about that right now too much

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because

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in a separate skill, we're going to walk through the configuration and

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manipulation of

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OSPF V3 specifically.

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So I'll have more practice then as well.

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But I want to make you aware that this is an option.

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So I'm going to right click, copy that, go to R1, and paste it in, and then I'm
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So I'm going to right click, copy that, go to R1, and paste it in, and then I'm

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assuming

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you're going to follow that process for the other routers.

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So here's R2, we'll grab that, paste that in, and then something going to

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repeat that for

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each of the eight routers.

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All right, so I put all eight of those configurations in.

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Let's go to R4 and do a quick spot check.

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So here on R4, which is an area border router between area 0 and area 2 for

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both IPv4 and

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IPv6.

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One of the interesting things I've discovered is that if you do a show IP OSPF

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Interface

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Brief, it says nope, nothing.
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Brief, it says nope, nothing.

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So IPv6, OSPF Interface Brief, press enter, that shows the IPv6 portion.

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However, the commands we'd want to use for consistent results if we're running

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OSPF B3

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specifically like we just configured, the best commands to use would be show OS

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PF V3,

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space, question mark, and check it out.

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So no, because they interface, I'm going to go ahead and say brief.

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And that's going to show us the output from an OSPF V3 perspective for both

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address

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families, IPv4 and IPv6.

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So for IPv4, this interface has a cost of 15,625 and for IPv6 has the same cost
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So for IPv4, this interface has a cost of 15,625 and for IPv6 has the same cost

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.

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Here I'm fast to the net for a slash one.

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It's the DR for IPv4.

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It also happens to be the DR for IPv6 as well.

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We'll go to show OSPF V3 and that will show us the router ID.

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So here showing us the address family for IPv4 and the interface is involved

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and the area

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is involved.

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We'll go down further.

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Okay, then go ahead and show us the address family for IPv6 and its details as

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well.

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Also if we did a show run, pipe and section router, press enter, check it out.
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Also if we did a show run, pipe and section router, press enter, check it out.

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We also have separate sections under the OSPF V3 specifically for IPv4 unicast

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and IPv6

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unicast.

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And then to test our full connectivity, let's bring back our topology from our

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eight.

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If we go ahead and ping the IPv4 address off our seven like 10.1.7.

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or its equivalent IPv6 address which would be 2001, DB867837 colon colon seven.

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It should show us the path and full connectivity across our network for both
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It should show us the path and full connectivity across our network for both

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protocols.

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So let's go over to our seven.

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Let's do a show IP interface brief and also to show IPv6 interface brief.

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And that way I can just copy the addresses rather than having to go ahead and

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type them

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out manually.

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So for IPv4, the address on the far bottom left of our topology is 10177.

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So I'll go ahead and copy that with our eight.

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Let's do a trace and we'll paste in that IPv4 address.

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That's going to our six to our four.

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And that's based on these last octets here.
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And that's based on these last octets here.

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Then to two, then one, then three, then five, then seven, fantastic.

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Let's go back to our seven and this grab its IPv6 address off of its gig zero

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zero interface.

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Which is this one right here.

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I'll copy that.

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We'll go back to our eight and let's go ahead and do a trace and we'll trace to

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that

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IPv6 address, press enter and once again, following the same path.

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And based on this last octet here is going up to our six and then our four and

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our two

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and our one, our three, our five and finally hits our seven.
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and our one, our three, our five and finally hits our seven.

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And primarily, I wanted to show you this video with OSPF V3 respectively

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because I just

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wanted to be aware that this option exists.

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And in the next skill, we'll focus more of our attention on OSPF V3 with the

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two address

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families and do additional features with it.

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And if you're ready for some hands on practice, join me in the next video.

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I'd like to present for you a hands on lab that you can use to get that hands

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on practice.