How To Create Computer Network (LAN) Using Manajemen IP Calculation

Before establishing a LAN with number of host (PC) of IP Address. I consider you have known the fundamental of IP Address like IP class and netmask. The way to calculate Netmask and Host for network: I give you a case below and the solving way: There is the number of computer that will be created to be a network with IP address 192.168.1.0, It has to be divided into 4 sub-network. From Host-bit (8bit), We must take some bits to make a sub-network. If you take 2 bits first, The combination of bits:

00 01 10 11

00 and 11 can not be used as Net-Id (network and broadcast address), so from 2 bits just can be created 2 network, those are 10 and 01. 00 is subnet-zeroes, 11 is subnet-ones. To be able to use both we need a compatible router. Commonly, this subnet seldom used. Assumed that we cannot use subnet-zeroes, needed 3 bits for network identity.
The combination of bits are:

000 001 010 011 100 101 110 111

0010 0000 = 32 so IP 192.168.1.32
0100 0000 = 64 so IP 192.168.1.64
0110 0000 = 96 so IP 192.168.1.96
1000 0000 = 128 so IP 192.168.1.128
1010 0000 = 160 so IP 192.168.1.160
1100 0000 = 192 so IP 192.168.1.192

Because we take 3 bits from host for subnet, Then the Network ID add to be 3 bits, The way to calculte netmask:

Class C : 11111111 1111111 11111111 00000000
+ 3 bit : 11111111 1111111 11111111 11100000
255 255 255 224

The number of binary 1 netmask = 24 + 3 = 27
This bit calculation will be used as identity of netmask, Thus this IP can be wrote as:

192.168.1.163/27 = 192.168.1.163
255.255.255.254

2 Komentar »

  1. knapa ip nya kebanyakan: 192 168 dan seterusnya?

    • bec4lm Said:

      ip selalu 192.168.x.xx krna ip tsb merupakan ip modem maksudnya ip tersebut sdh dtentukan oleh modem (bawaan modem), hanya itu yang bisa saya jwb, mgkn lbih jelasnya bsa tnya om google, atau bisa lihat dblog2 lain. terima kasih…


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