1 00:00:04,470 --> 00:00:08,250 All right welcome back exciting I think terminology. 2 00:00:08,250 --> 00:00:09,250 Aren't you excited. 3 00:00:09,480 --> 00:00:10,170 I'm excited. 4 00:00:10,390 --> 00:00:10,850 All right. 5 00:00:12,360 --> 00:00:15,870 MBA abettors one digit either a one or zero. 6 00:00:15,920 --> 00:00:18,060 That's cares where right machine go. 7 00:00:18,210 --> 00:00:23,370 And once computers do not know anything else but you're are ones binary. 8 00:00:23,620 --> 00:00:34,460 OK so this is a minor a bit on the one on the A by 7 or 8 bits 8 bits 8 bits. 9 00:00:34,620 --> 00:00:36,860 That's all going to be working with a bits. 10 00:00:36,870 --> 00:00:43,870 Makes about 8 bits creates the number 8 bits create the letter I see. 11 00:00:43,950 --> 00:00:49,220 So 8 bits 8 bits a bits an octet 12 00:00:52,680 --> 00:01:11,880 an IP version 4 There are four octets us each Octa is eight bits long eight times for 32 which is a 13 00:01:11,880 --> 00:01:14,570 32 bit IP address. 14 00:01:14,600 --> 00:01:17,580 So they get answers each other. 15 00:01:17,600 --> 00:01:22,800 It is a bit that means it creates a character and that's always the number. 16 00:01:23,070 --> 00:01:23,660 OK. 17 00:01:24,440 --> 00:01:27,910 That's what and often thoughts at each other about this. 18 00:01:28,240 --> 00:01:30,740 Now no I've addressed what's org. 19 00:01:31,410 --> 00:01:37,790 Our address lets you know hey I belong in this network. 20 00:01:38,000 --> 00:01:41,060 This is my neighborhood right. 21 00:01:41,090 --> 00:01:44,220 That's what an Arab address is tells you. 22 00:01:44,410 --> 00:01:45,150 OK. 23 00:01:45,320 --> 00:01:49,490 You belong to the turndowns rules rules will not work are the ones I want to see things that are an 24 00:01:49,490 --> 00:01:50,470 hour or two. 25 00:01:50,610 --> 00:01:53,240 Why did you want to see one does you an hour whatever. 26 00:01:54,330 --> 00:01:56,830 That's the word you live in. 27 00:01:57,270 --> 00:01:57,910 OK. 28 00:01:58,020 --> 00:02:09,500 Your segment's the broadcast address if and when it is used it is used to send information to everyone. 29 00:02:09,950 --> 00:02:14,430 Ok broadcast is not something we want to do. 30 00:02:14,430 --> 00:02:18,510 We try to avoid broadcast as network engineers. 31 00:02:18,520 --> 00:02:19,440 Why. 32 00:02:19,500 --> 00:02:21,270 Because broadcast is bad. 33 00:02:21,390 --> 00:02:28,300 But the addresses used by applications and host to send information to all nodes our network is called 34 00:02:28,300 --> 00:02:35,720 abroad and the job they say broadcast is backed OK. 35 00:02:36,050 --> 00:02:47,170 Minimize the amount of broadcast what you want to increase the Armato broadcast domain. 36 00:02:48,470 --> 00:02:56,540 More broadcasting means less broadcast will be admitted within that particular. 37 00:02:58,940 --> 00:03:02,410 Where are your devices coming devices coming. 38 00:03:04,280 --> 00:03:06,210 So here are an IP address for. 39 00:03:06,490 --> 00:03:07,590 It's a logical. 40 00:03:08,750 --> 00:03:09,790 What is the question. 41 00:03:09,960 --> 00:03:21,370 So I ask a question about what does it lead you to it's a logical address that's given to know what 42 00:03:21,380 --> 00:03:29,380 the node any device directly connected to remember that's or not is OK. 43 00:03:30,410 --> 00:03:32,950 If you're part of a network you are a node. 44 00:03:33,140 --> 00:03:36,360 If I plug myself in I have a point. 45 00:03:36,520 --> 00:03:36,900 All right. 46 00:03:37,040 --> 00:03:42,300 If I connect myself to the network I think I am part of that network. 47 00:03:42,540 --> 00:03:45,840 Therefore I am given an address given. 48 00:03:45,950 --> 00:03:50,760 Now we're going to pass and a host address. 49 00:03:50,990 --> 00:03:51,910 What is that. 50 00:03:52,310 --> 00:03:52,950 OK. 51 00:03:53,180 --> 00:03:56,690 All the IP addresses separated into two parts. 52 00:03:56,690 --> 00:04:00,570 One part is the network address the host address. 53 00:04:00,650 --> 00:04:01,790 Who does that. 54 00:04:01,880 --> 00:04:04,930 Some LIT-MATS kind of a little bit but that's OK. 55 00:04:04,940 --> 00:04:14,050 You can see the some of the mask is the key to all the answers that you can ever hope for an IP address. 56 00:04:14,420 --> 00:04:15,190 OK. 57 00:04:15,350 --> 00:04:17,360 Because it won't let you know. 58 00:04:18,370 --> 00:04:26,860 What part is your network and what part is your host ID in this case. 59 00:04:27,070 --> 00:04:35,330 This particular or 2 5 5 5 5 5 5 0 0 0 means that these first three octets are taken up. 60 00:04:35,350 --> 00:04:41,620 Therefore that is the network and then the last part is the host which is zero means you can do anything 61 00:04:41,620 --> 00:04:42,980 from 1 to 2 before. 62 00:04:43,170 --> 00:04:43,850 OK. 63 00:04:44,090 --> 00:04:46,250 That's what the pseudonymous does. 64 00:04:46,600 --> 00:04:47,730 It is key. 65 00:04:47,770 --> 00:04:55,420 That's the key right there on some math your computer is much and your router knows we will let you 66 00:04:55,420 --> 00:04:55,950 know. 67 00:04:56,920 --> 00:04:58,120 The gateway address. 68 00:04:58,240 --> 00:05:00,030 Another logical address. 69 00:05:00,080 --> 00:05:03,040 I know this is the last standard I'll buy food. 70 00:05:03,380 --> 00:05:04,060 OK. 71 00:05:04,180 --> 00:05:08,600 I like to use the last available IP address for my Gateway addresses. 72 00:05:08,620 --> 00:05:09,840 This is just me. 73 00:05:09,840 --> 00:05:10,930 All right Microsoft. 74 00:05:10,980 --> 00:05:13,520 First of all what if you will say why. 75 00:05:13,560 --> 00:05:18,560 That's all I wanted to say one of the four and I say we're using this mask right here to fight with 76 00:05:18,870 --> 00:05:19,540 you. 77 00:05:19,590 --> 00:05:22,080 This will actually be my PC right. 78 00:05:22,290 --> 00:05:25,730 And this will be it's gain weight and that will be the last. 79 00:05:25,740 --> 00:05:30,450 So you need to know that is your game where you need to know what your gateway is your gangways doorway 80 00:05:30,450 --> 00:05:39,230 to the outside which is the router or for those of you that like to use LAYER three switches as your 81 00:05:39,230 --> 00:05:40,390 layer 3 switch. 82 00:05:40,400 --> 00:05:41,000 OK. 83 00:05:41,330 --> 00:05:46,060 But you need to know this you need to know this and the DNS address. 84 00:05:46,190 --> 00:05:53,430 Well it's there is nothing is optional but if you are going to use DNS in your network it will be nice 85 00:05:53,840 --> 00:05:58,200 if you put the DNS address on the server in your PC. 86 00:05:58,220 --> 00:05:58,890 OK. 87 00:05:59,090 --> 00:06:05,160 And if there are so the router to use DNS to resolve all they will as well. 88 00:06:05,590 --> 00:06:06,290 OK. 89 00:06:06,430 --> 00:06:17,480 So it's extremely important that you know this is just terminology but it's something that you asked 90 00:06:17,530 --> 00:06:19,650 me what an IP address was your day. 91 00:06:19,960 --> 00:06:20,650 OK. 92 00:06:20,890 --> 00:06:28,490 If somebody asked you who was going to look for something that was something that you ever do that in 93 00:06:28,500 --> 00:06:29,590 front of anyone. 94 00:06:30,070 --> 00:06:31,220 OK. 95 00:06:31,320 --> 00:06:35,680 You better know what this is OK and you don't know where they go. 96 00:06:35,820 --> 00:06:36,370 OK. 97 00:06:36,490 --> 00:06:40,270 And we go to the properties of UTC Bapi protocol. 98 00:06:40,390 --> 00:06:41,610 It will be right there. 99 00:06:41,830 --> 00:06:46,190 You can either get it through the VCR or you can put it in statical yourself. 100 00:06:46,420 --> 00:06:49,480 They know what an IP addresses. 101 00:06:49,690 --> 00:06:54,590 No the the key to everything is there something in math. 102 00:06:54,610 --> 00:07:03,520 No the address is going to be the door to go outside your network which is your router usually your 103 00:07:03,520 --> 00:07:14,650 layer 3 device or I say that way for you the switch gurus and then you're the gateway and and the address. 104 00:07:15,070 --> 00:07:15,900 Don't forget it. 105 00:07:16,020 --> 00:07:18,220 OK troubleshooting troubleshooting. 106 00:07:18,430 --> 00:07:19,320 I can't get to the ernet. 107 00:07:19,330 --> 00:07:22,290 You have to get where you have the right mask. 108 00:07:22,540 --> 00:07:23,970 Do you have the right IP. 109 00:07:24,160 --> 00:07:24,800 OK. 110 00:07:25,090 --> 00:07:26,230 I can't resolve. 111 00:07:26,320 --> 00:07:29,190 Will it does it gives me some sort of weird error. 112 00:07:30,900 --> 00:07:32,150 Do you have a DNS address. 113 00:07:32,150 --> 00:07:37,330 Are you getting a DNS address in order to resolve that because the NSA asked what it does. 114 00:07:37,400 --> 00:07:38,760 One of and he's looking for Google. 115 00:07:38,860 --> 00:07:40,350 Hey do you have an entry for Google. 116 00:07:40,390 --> 00:07:42,240 We're not here to ask you don't want to go to or not. 117 00:07:42,520 --> 00:07:48,130 So non-service they know the entry for you and so forth and they'll look they'll keep looking for DNS 118 00:07:48,130 --> 00:07:51,320 servers until they find oh google is this IP. 119 00:07:51,350 --> 00:07:52,520 OK here we go. 120 00:07:54,230 --> 00:07:58,500 So you need to know we need to know each other DNS address. 121 00:07:58,590 --> 00:08:03,440 So it's just basic IP terminology something you can.