1 00:00:00,360 --> 00:00:01,140 Hello, everyone. 2 00:00:01,500 --> 00:00:09,390 In today's edition of sequel series, I'll discuss about IPv4 address network and host Bush and also 3 00:00:09,390 --> 00:00:11,550 we'll discuss about subnet mask. 4 00:00:14,270 --> 00:00:22,070 Each network running TCP IP must have a unique network, no, and every machine on it must have a unique 5 00:00:22,370 --> 00:00:23,390 IP address. 6 00:00:26,150 --> 00:00:29,630 The bytes of IP addresses are further classified into two parts. 7 00:00:30,380 --> 00:00:31,370 The network but. 8 00:00:33,700 --> 00:00:34,720 And the whole spot. 9 00:00:36,320 --> 00:00:40,370 The network board specifies a unique number assigned to your network. 10 00:00:41,060 --> 00:00:43,820 It also identifies the class of the network assigned. 11 00:00:45,520 --> 00:00:51,670 Part is a part of the IP address that you assigned to each host is uniquely identifies this machine 12 00:00:51,670 --> 00:00:52,570 on your network. 13 00:00:53,260 --> 00:00:58,270 Note that for each host on your network, the network part of the address will be seen, but the host 14 00:00:58,270 --> 00:00:59,680 part must be different. 15 00:01:00,400 --> 00:01:05,740 But how do host know which portion of 32 bit is network and which is host? 16 00:01:06,430 --> 00:01:12,880 That is the job of the subnet mask in describe the parts of the IP address that are used as the network 17 00:01:12,880 --> 00:01:14,470 and host addresses are not fixed. 18 00:01:15,130 --> 00:01:20,740 So the network in the host addresses about cannot be determined unless you have more information. 19 00:01:21,370 --> 00:01:26,080 This information is supplied in another 32 bit number called a subnet mask. 20 00:01:27,070 --> 00:01:28,900 When an IP host is configured. 21 00:01:30,350 --> 00:01:33,230 A subnet mask is assigned along with an IP address. 22 00:01:34,730 --> 00:01:40,430 Similar to IPv4 address, the subnet mask is represented in Dot Dot Dot decimal format for ease of use. 23 00:01:41,090 --> 00:01:44,270 Like the IP address, subnet mask is a 32 bit long. 24 00:01:45,060 --> 00:01:51,290 The subnet mask signifies which part of the IP address is network and which part is host. 25 00:01:51,800 --> 00:01:55,190 The subnet Macias compared to the IP address from left to right. 26 00:01:55,430 --> 00:02:00,920 Bit by bit, the ones in the subnet mask group isn't the network portion and the zeros represent. 27 00:02:02,490 --> 00:02:03,630 The post-abortion. 28 00:02:06,000 --> 00:02:10,440 No, that the subnet mask does not actually contain the network or host position as an IP address, 29 00:02:10,440 --> 00:02:15,270 it just tells the computers where to look for these positions in a given IP before address. 30 00:02:17,020 --> 00:02:24,340 Let's take an example, Judy, to remind the network address and the host address of Blue Ivy 192 168 31 00:02:24,340 --> 00:02:26,290 123 Dot 132. 32 00:02:27,100 --> 00:02:33,130 In this example, the subnet mask is last 24 or you can call it as 255.255.255.0. 33 00:02:34,000 --> 00:02:38,440 So the subnet mask, if you can work in binary, will be twenty four zeros. 34 00:02:39,930 --> 00:02:41,910 So dreadful ones and zeroes. 35 00:02:43,630 --> 00:02:48,910 Lining up the IP address and subnet mask together, the network in the host portion of the address can 36 00:02:48,910 --> 00:02:49,960 be separated. 37 00:02:53,210 --> 00:02:58,130 The first 24 bits that I'm one of the ones that have been mascot identified as the network address with 38 00:02:58,130 --> 00:03:02,780 the last it was the number of remaining zeros in this mosque identified as the host address. 39 00:03:03,230 --> 00:03:07,250 This gives you the following network address in binary format. 40 00:03:09,020 --> 00:03:13,970 And then network addressing decimal format will be 192, 116, 123 or zero. 41 00:03:14,510 --> 00:03:16,580 And the host errors in binary format will be. 42 00:03:19,200 --> 00:03:22,230 Which if you convert to decimal, we will have an who stayed with us. 43 00:03:22,260 --> 00:03:23,370 One, three two. 44 00:03:24,630 --> 00:03:31,320 So now you know, for this from this example, last seven mosque and the network, it is 192 168 one 45 00:03:31,320 --> 00:03:34,380 to edit or zero and the host addresses one three two. 46 00:03:35,160 --> 00:03:36,390 That's it for the session. 47 00:03:36,390 --> 00:03:39,720 In my next session, I'll discuss about IP address classes. 48 00:03:40,080 --> 00:03:41,080 Thank you for watching. 49 00:03:41,130 --> 00:03:43,620 Please do like, share and subscribe. 50 00:03:43,650 --> 00:03:44,130 Thank you.