1 00:00:01,450 --> 00:00:04,210 So here are my devices. 2 00:00:04,240 --> 00:00:12,640 First thing is let's configure the Rodda so deface fust. 3 00:00:12,660 --> 00:00:14,670 Ethan it is 0 0. 4 00:00:15,160 --> 00:00:17,240 No shut interface first. 5 00:00:17,260 --> 00:00:26,040 Ethan It's 0 0 1 so I'm going to create a sub interface with IP address 10 1 2 1 2 2 5 4. 6 00:00:26,260 --> 00:00:28,810 But notice what's going to happen when I press enter. 7 00:00:29,170 --> 00:00:36,940 I'm told that configuring IP routing on a LAN sub interface is only allowed if that sub interfaces are 8 00:00:36,940 --> 00:00:39,850 ready configured as part of an ADA to that one. 9 00:00:39,860 --> 00:00:50,620 Q So the line from the top and kept isolation got one key line one and this is on native land untagged. 10 00:00:50,620 --> 00:00:59,980 Vigeland So now I can put the IP address on that sub interface second something to face in kept solution. 11 00:01:00,080 --> 00:01:13,760 Got one key villain to IP Address 10 1 to 2 2 5 4 slushed 24 mosque suit sub interface. 12 00:01:14,050 --> 00:01:24,090 This is going to be encapsulation dupped one key violent three an IP address 10 1 3 2 5 4 slushed 24 13 00:01:24,090 --> 00:01:24,790 mosque. 14 00:01:24,910 --> 00:01:31,620 So it does show run pipe begin face. 15 00:01:31,640 --> 00:01:35,000 So here is our first interface here. 16 00:01:35,020 --> 00:01:44,950 Our office three sub interfaces that's how you configure in TV land routing on a Rotto on a stick. 17 00:01:45,090 --> 00:01:52,810 So lets configure our PCs show IP shows that PC one doesn't currently have an IP address. 18 00:01:52,950 --> 00:02:12,260 So IP Tendo one to one slash 24 mosque default gateway is the Raanta PC to IP Address 10 or to treat 19 00:02:12,390 --> 00:02:12,800 one 20 00:02:16,170 --> 00:02:23,910 turned out one to three to five for so PC one ping its default gateway. 21 00:02:24,340 --> 00:02:26,350 Yes it can. 22 00:02:26,380 --> 00:02:29,510 What about PC to. 23 00:02:29,580 --> 00:02:31,800 It can also ping its default gateway. 24 00:02:32,190 --> 00:02:37,970 So these two PCs can paying Rato one on the respect of sub interfaces. 25 00:02:37,980 --> 00:02:40,080 Can the PCs ping each other. 26 00:02:42,170 --> 00:02:53,770 PC one paying 10 1 3 1 Ping's succeeds PC to paying $10 one to two to one Ping's succeeds that traffic 27 00:02:53,770 --> 00:02:59,350 is being switched to the Rodda being interval and routed and sent back to PC to 28 00:03:02,270 --> 00:03:05,190 all deal with shock capture in a moment. 29 00:03:05,190 --> 00:03:10,490 But notice what happens when I shut the physical interface Foster Ethan it is 0 0 30 00:03:14,320 --> 00:03:21,260 PC one is no longer able to ping PC to when no shut the interface on the Rodda 31 00:03:24,060 --> 00:03:28,500 interface comes up and pings start succeeding. 32 00:03:28,540 --> 00:03:36,440 That's how you configure it to switch with different villans and an external Rodda acting as a Rotto 33 00:03:36,440 --> 00:03:39,970 on a stick during the interview and routing. 34 00:03:39,980 --> 00:03:46,020 So now let's run a one shot capture so we can see what's actually happening. 35 00:03:47,360 --> 00:03:56,250 I'm going to run the y shall capture on the switch so we can see the frames going to the Rodda. 36 00:03:56,320 --> 00:04:01,960 So when PC one Ping's PC two we should see that it's tagged with relend too. 37 00:04:01,960 --> 00:04:06,350 But when it comes back again from the Rodda it's tagged with the LAN three 38 00:04:09,440 --> 00:04:15,550 PC one ping PC to. 39 00:04:15,780 --> 00:04:25,620 So we can see the traffic from 10 1 to 1 going to 10 1 3 1 in the frame. 40 00:04:25,790 --> 00:04:35,910 We can see it's tagged with the line to the destination MAC address of this frame. 41 00:04:36,070 --> 00:04:40,500 He's the rodef show interface is 0 0 42 00:04:43,280 --> 00:04:45,100 notice the Mac address. 43 00:04:45,350 --> 00:04:51,680 See 2 0 1 1 e 3 C quadruple 0. 44 00:04:51,680 --> 00:05:00,640 So that frame is going to the router tagged with Villon to he has another frame. 45 00:05:00,650 --> 00:05:07,680 Notice the source Mac address is the router and the villain ID is Villon 3. 46 00:05:07,700 --> 00:05:15,320 So what's happened is the frame arrived on port 1 was sent out a port three going to the Rodda tagged 47 00:05:15,320 --> 00:05:23,540 with land to and was received back from the Rodda going to PC to get received on this port tagged as 48 00:05:23,540 --> 00:05:25,880 villaine 3. 49 00:05:25,990 --> 00:05:32,400 And once again there's the frame going to the Rodda tagged with the Leonti. 50 00:05:32,790 --> 00:05:41,370 Here's the frame from the Rodda source mac address of the router tagged with villaine 3 the IP packet 51 00:05:41,370 --> 00:05:46,660 is stole from PC one going to PC to. 52 00:05:46,690 --> 00:05:48,780 So what about the return traffic. 53 00:05:49,240 --> 00:05:49,510 Yes. 54 00:05:49,570 --> 00:05:55,290 Traffic from PC to note is tagged with violent three going to the rodder. 55 00:05:55,300 --> 00:05:58,390 So that's the frame here going to the router. 56 00:06:00,310 --> 00:06:05,370 Here's the frame from the router tagged with the Leonti. 57 00:06:05,380 --> 00:06:11,910 So once again hits untagged hits the switch is tagged as Villines 3 to the Rodda. 58 00:06:12,160 --> 00:06:17,080 It's in TV land rodded tagged is violent to send sent back to the switch. 59 00:06:18,190 --> 00:06:20,510 Untagged 2 pc 1. 60 00:06:20,560 --> 00:06:30,990 So we are seeing the tag frame on pork's 3 from PC to to the Rodda tagged in villaine 3. 61 00:06:31,270 --> 00:06:36,790 And then here from the router two PC one tagged in the land to.