Before we talk about the Internet connection we must first know the TCP / IP (Transmission Control Protocol / Internet Protocol). To be able to communicate from computer to computer (PC to PC), the computer must follow certain rules. This regulation is commonly referred to by the term protocol. Rules (Protocol) communication follows the standard OSI (Open Systems interconnecting). One of the OSI protocol that meets the standard protocol is TCP / IP. This protocol used to communicate on the Internet, IP (Internet Protocol).
IP Address Formats
IP number is a number that is used to determine the address of a computer. IP Nomot consists of 32 binary bits or 12 decimal digits.
1. Binary Shape
IP addresses are 32-bit binary numbers separated by a dot marks the dividing every 8 bits. Every eight bits are called octets. The form is as follows:
xxxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx
each symbol x can be replaced by the numbers 0 and 1.
exampel:
10000100.1011100.1111001.00000001
2. Decimal
Notation IP address with binary numbers as above are not easy to read. To make it easier to read and write, then the IP address is often written as four decimal numbers, each separated by sebuat point. Penulisa format is called "dotted decimal notation" (dotted decimal notation). Each decimal number represents the value of an octet (eight bits) IP address. See examples below:
10000100 . 01011100 . 01111001 . 00000001
132.92.121.1
IP Address Classification
IP addresses are classified into several classes namely class A, B, C, D and E. The classification of these IP addresses can be characterized from three digits of its leading figures. See the table below:
IP Private
Private IP is the IP numbers that are not recognizable presence on the Internet. He only recognized on the local network only. Example private IP:
There is another IP number which is also not used on the Internet that is 127.0.0.1 IP number is called the loopback IP.
Computer Address
To determine the address of a computer we must know the network address and Host address. Network address can be determined by looking at the classification of the computer's IP address and its subnet number. See the table below.
IP Address Formats
IP number is a number that is used to determine the address of a computer. IP Nomot consists of 32 binary bits or 12 decimal digits.
1. Binary Shape
IP addresses are 32-bit binary numbers separated by a dot marks the dividing every 8 bits. Every eight bits are called octets. The form is as follows:
xxxxxxxx.xxxxxxxx.xxxxxxxx.xxxxxxxx
each symbol x can be replaced by the numbers 0 and 1.
exampel:
10000100.1011100.1111001.00000001
2. Decimal
Notation IP address with binary numbers as above are not easy to read. To make it easier to read and write, then the IP address is often written as four decimal numbers, each separated by sebuat point. Penulisa format is called "dotted decimal notation" (dotted decimal notation). Each decimal number represents the value of an octet (eight bits) IP address. See examples below:
10000100 . 01011100 . 01111001 . 00000001
132.92.121.1
IP Address Classification
IP addresses are classified into several classes namely class A, B, C, D and E. The classification of these IP addresses can be characterized from three digits of its leading figures. See the table below:
| Class | M S B |
|---|---|
| A | 1 - 126 |
| B | 128 - 191 |
| C | 192 - 223 |
| D | 224 - 247 |
| E | 248 - 255 |
IP Private
Private IP is the IP numbers that are not recognizable presence on the Internet. He only recognized on the local network only. Example private IP:
| Class | IP Private |
|---|---|
| A | 10.0.0.1 |
| B | 172.0.0.1 |
| C | 192.168.0.1 |
There is another IP number which is also not used on the Internet that is 127.0.0.1 IP number is called the loopback IP.
Computer Address
To determine the address of a computer we must know the network address and Host address. Network address can be determined by looking at the classification of the computer's IP address and its subnet number. See the table below.
| Class | IP | Network | Subnet Mask |
|---|---|---|---|
| A | 64.1.25.8 | 64.0.0.0 | 255.0.0.0 |
| B | 175.1.25.8 | 175.1.0.0 | 255.255.0.0 |
| C | 195.1.25.8 | 195.1.25.0 | 255.255.255.0 |
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