1 00:00:00,450 --> 00:00:09,470 Ingenious three I'm going to drag and a boon to host to the workspace that's happened to host will be 2 00:00:09,470 --> 00:00:12,300 our P.S. In the topology. 3 00:00:12,320 --> 00:00:22,340 I'm also going to drag a writer into the topology and I'll add an Ethernet switch to the topology so 4 00:00:22,350 --> 00:00:26,490 very simple topology of a P.C. switch and a router 5 00:00:29,680 --> 00:00:34,300 I'll connect to the P.S. to the switch and to the switch to the router. 6 00:00:34,380 --> 00:00:37,410 That's how the devices are connected to one another. 7 00:00:38,130 --> 00:00:40,980 And I'll start the devices up. 8 00:00:40,980 --> 00:00:45,960 There's no configuration on any of these devices at the moment. 9 00:00:45,960 --> 00:00:54,610 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. 10 00:00:54,770 --> 00:01:02,180 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 11 00:01:02,180 --> 00:01:08,660 configured but it does have a IP version 6 link local address. 12 00:01:08,660 --> 00:01:11,090 This is the MAC address of the P.C.. 13 00:01:11,210 --> 00:01:13,500 Notice it ends in e 9. 14 00:01:13,520 --> 00:01:25,720 This is the link local address of the P.S. notice IP version 6 address FC 80 slash 64 mosque scope is 15 00:01:25,720 --> 00:01:34,800 link local so let's have a look at the router the router has just booted a default configuration has 16 00:01:34,800 --> 00:01:42,390 been applied in this example but what you'll notice is all interfaces are currently shut down show IP 17 00:01:42,390 --> 00:01:55,740 interface gigabit 00 shows us that the protocol is down show IP vs 6 interface gigabit 00 shows no output 18 00:01:55,800 --> 00:02:06,200 show IP vs 6 interface brief no IP version 6 addresses are configured all the interfaces are shut down. 19 00:02:06,570 --> 00:02:14,040 In other words they administratively shut down what I'm gonna do at this point is shut down the P.C. 20 00:02:14,820 --> 00:02:21,190 so when to turn it off and then I'm gonna configure the router what I also want to do is run a wire 21 00:02:21,190 --> 00:02:30,400 shock capture on this link so that we can see any messages that are sent by either the P.C. or the Roorda 22 00:02:31,810 --> 00:02:35,650 so at the moment we are not seeing any one shock captures. 23 00:02:35,650 --> 00:02:39,480 But what I'll do on the Rada is give it a name. 24 00:02:39,550 --> 00:02:52,360 I'll enable IPD six unique cost routing go on to gigabit 00 and let's configure an IP 6 address of 2001 25 00:02:52,360 --> 00:03:03,430 face colon colon one slash 64 so to show run interface gigabit 00 all I've done is configure an IP version 26 00:03:03,430 --> 00:03:11,290 6 address on the interface and enable my Peavey 6 unique cost writing when I know shutter the interface 27 00:03:11,410 --> 00:03:17,480 what we should notice is IP version 6 and messages are sent and there they are. 28 00:03:17,560 --> 00:03:21,280 So here's a multicast message. 29 00:03:21,430 --> 00:03:30,310 This is to do with Imelda that multicast is used for the multicast listener Discovery Protocol or NLD 30 00:03:30,550 --> 00:03:31,420 version to 31 00:03:34,910 --> 00:03:40,070 so NLD reports are sent to this address. 32 00:03:40,080 --> 00:03:44,010 F f 0 2 CULLEN CULLEN 16. 33 00:03:44,060 --> 00:03:47,620 But for now we won't concern ourselves with that protocol. 34 00:03:47,630 --> 00:03:55,040 Notice she has an example we have a neighbour solicitation message from a device with this source MAC 35 00:03:55,040 --> 00:03:57,020 address 8 2 9 0 0 36 00:04:01,160 --> 00:04:06,580 so let's have a look at the MAC address of that interface. 37 00:04:06,800 --> 00:04:10,670 So show IP vs 6 rather interface gigabit. 38 00:04:10,670 --> 00:04:19,300 0 0 what you'll notice is this is the link local address of the router and the rudder has joined multiple 39 00:04:19,300 --> 00:04:21,330 multicast groups. 40 00:04:21,430 --> 00:04:24,010 This is the global unique cost address. 41 00:04:24,040 --> 00:04:27,240 And if we do show interface you give it to 0 0. 42 00:04:27,310 --> 00:04:35,050 You can see that that's the burnt in address of the router so ending in 8 9 0 0. 43 00:04:35,170 --> 00:04:44,430 So this is the router sending a message if we open this up we can see em all these messages and noticed 44 00:04:44,430 --> 00:04:48,220 she has a neighbour solicitation message from the router 45 00:04:53,120 --> 00:04:55,760 filter for IP vs 6. 46 00:04:55,840 --> 00:04:57,480 So we only see those messages. 47 00:04:57,490 --> 00:05:02,260 And here again you can see the neighbor's solicitation message. 48 00:05:02,370 --> 00:05:08,030 Here we have a rather advertisement message so the road is advertising itself. 49 00:05:08,040 --> 00:05:11,810 Notice it's advertising the source link layer address. 50 00:05:11,820 --> 00:05:14,260 So that's the MAC address of the rudder. 51 00:05:14,520 --> 00:05:16,910 We can see the empty you. 52 00:05:17,070 --> 00:05:19,540 And notice shear prefix information. 53 00:05:19,540 --> 00:05:26,940 2001 colon face colon colon slash 64. 54 00:05:26,940 --> 00:05:34,170 So again show run interface gigabits 0 0 that is the network that we configured on the right to show 55 00:05:34,170 --> 00:05:36,950 IP version 6 interface gigabit to 0 0. 56 00:05:37,200 --> 00:05:43,650 That is the global unique cost address on the router and that is the subnet that's been advertised. 57 00:05:45,020 --> 00:05:51,200 So the rod is advertising that network through a router advertisement message. 58 00:05:51,200 --> 00:05:58,210 If we scroll down you'll notice that that is continually advertised. 59 00:05:58,220 --> 00:06:06,380 Here is another neighbor advertisement from the routers IP address to all devices on the local segment 60 00:06:08,480 --> 00:06:15,790 and going back to Rod advertisement notice it sending it to all hosts on the local segment. 61 00:06:15,940 --> 00:06:17,680 Why shock shows this quite nicely. 62 00:06:17,680 --> 00:06:19,750 There is a neighbor advertisement. 63 00:06:19,750 --> 00:06:27,520 Here again is a router advertisement message with the prefix and the rod is continually advertising 64 00:06:27,610 --> 00:06:28,570 that network.