Ingenious three I'm going to drag and a boon to host to the workspace that's happened to host will be
our P.S. In the topology.
I'm also going to drag a writer into the topology and I'll add an Ethernet switch to the topology so
very simple topology of a P.C. switch and a router
I'll connect to the P.S. to the switch and to the switch to the router.
That's how the devices are connected to one another.
And I'll start the devices up.
There's no configuration on any of these devices at the moment.
Let's open up a console to the P.C. we can see that it's an a boon to P.C. called a boon to one.
And if I use the command I f config e 0 you'll notice that the P.C. doesn't have an IP version for dress
configured but it does have a IP version 6 link local address.
This is the MAC address of the P.C..
Notice it ends in e 9.
This is the link local address of the P.S. notice IP version 6 address FC 80 slash 64 mosque scope is
link local so let's have a look at the router the router has just booted a default configuration has
been applied in this example but what you'll notice is all interfaces are currently shut down show IP
interface gigabit 00 shows us that the protocol is down show IP vs 6 interface gigabit 00 shows no output
show IP vs 6 interface brief no IP version 6 addresses are configured all the interfaces are shut down.
In other words they administratively shut down what I'm gonna do at this point is shut down the P.C.
so when to turn it off and then I'm gonna configure the router what I also want to do is run a wire
shock capture on this link so that we can see any messages that are sent by either the P.C. or the Roorda
so at the moment we are not seeing any one shock captures.
But what I'll do on the Rada is give it a name.
I'll enable IPD six unique cost routing go on to gigabit 00 and let's configure an IP 6 address of 2001
face colon colon one slash 64 so to show run interface gigabit 00 all I've done is configure an IP version
6 address on the interface and enable my Peavey 6 unique cost writing when I know shutter the interface
what we should notice is IP version 6 and messages are sent and there they are.
So here's a multicast message.
This is to do with Imelda that multicast is used for the multicast listener Discovery Protocol or NLD
version to
so NLD reports are sent to this address.
F f 0 2 CULLEN CULLEN 16.
But for now we won't concern ourselves with that protocol.
Notice she has an example we have a neighbour solicitation message from a device with this source MAC
address 8 2 9 0 0
so let's have a look at the MAC address of that interface.
So show IP vs 6 rather interface gigabit.
0 0 what you'll notice is this is the link local address of the router and the rudder has joined multiple
multicast groups.
This is the global unique cost address.
And if we do show interface you give it to 0 0.
You can see that that's the burnt in address of the router so ending in 8 9 0 0.
So this is the router sending a message if we open this up we can see em all these messages and noticed
she has a neighbour solicitation message from the router
filter for IP vs 6.
So we only see those messages.
And here again you can see the neighbor's solicitation message.
Here we have a rather advertisement message so the road is advertising itself.
Notice it's advertising the source link layer address.
So that's the MAC address of the rudder.
We can see the empty you.
And notice shear prefix information.
2001 colon face colon colon slash 64.
So again show run interface gigabits 0 0 that is the network that we configured on the right to show
IP version 6 interface gigabit to 0 0.
That is the global unique cost address on the router and that is the subnet that's been advertised.
So the rod is advertising that network through a router advertisement message.
If we scroll down you'll notice that that is continually advertised.
Here is another neighbor advertisement from the routers IP address to all devices on the local segment
and going back to Rod advertisement notice it sending it to all hosts on the local segment.
Why shock shows this quite nicely.
There is a neighbor advertisement.
Here again is a router advertisement message with the prefix and the rod is continually advertising
that network.