1 00:00:00,490 --> 00:00:08,470 Internet protocol version for IP four is one of the core protocols of standards based networking methods 2 00:00:08,470 --> 00:00:09,090 on the Internet. 3 00:00:10,500 --> 00:00:18,060 It was described in IETF publication RFQ seven nine one in 1981, and it was the first version deployed 4 00:00:18,060 --> 00:00:21,990 for production in the ARPANET in 1983. 5 00:00:22,710 --> 00:00:29,190 It's still route's most Internet traffic today, despite the ongoing deployment of the successor protocol 6 00:00:29,550 --> 00:00:30,870 IPV six. 7 00:00:32,620 --> 00:00:36,580 With IPV for each address consists of four octets. 8 00:00:37,560 --> 00:00:44,270 Arquette stands for eight digit binary numbers, so an IPV V4 address is 32 bits in total. 9 00:00:44,760 --> 00:00:50,280 So that means we can theoretically address two to the power of 32 devices with IPV four. 10 00:00:50,760 --> 00:00:55,560 So that means the address base of IPV four is about four point three billion. 11 00:00:56,600 --> 00:00:58,330 Sounds like it's a big number, right? 12 00:00:59,910 --> 00:01:07,260 IPV four is represented by the decimal equivalent of four octets separated by dots, the biggest number 13 00:01:07,260 --> 00:01:11,880 one can make with eight binary digits is due to the power of eight minus one. 14 00:01:12,210 --> 00:01:13,830 That means two hundred fifty five. 15 00:01:14,160 --> 00:01:18,750 So each octet can be any number from zero to 255. 16 00:01:20,620 --> 00:01:27,240 Now, also, there are special meanings associated with two different ending numbers in general, the 17 00:01:27,250 --> 00:01:30,310 last number of zero stands for the network. 18 00:01:30,650 --> 00:01:39,610 Let's call that the base address and a last number of 255 stands for all hosts on that network called 19 00:01:39,790 --> 00:01:41,050 the broadcast address. 20 00:01:42,180 --> 00:01:46,440 Computers that are on the same local network share three of the four nos. 21 00:01:47,380 --> 00:01:53,890 A computer can be on more than one network, so it can also have several names.