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		<title>IP Addres dan Subnetting</title>
		<link>http://novitaza.wordpress.com/2009/04/15/ip-addres-dan-subnetting/</link>
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		<pubDate>Wed, 15 Apr 2009 13:20:56 +0000</pubDate>
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				<category><![CDATA[Ilmu penting]]></category>

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		<description><![CDATA[IP Address: merupakan suatu identifikasi perangkat jaringan pada jaringan protokol TCP/IP. Struktur IP Address (IPA) terdiri dari 32 bit(IPv4) yang terbagi menjadi 2 bagian yaitu network dan host dan secara umum diaplikasikan dalam 3 kelas yaitu: Kelas A: dengan range 1.0.0.0 s/d 126.255.255.255 (127.x.x.x alamat loopback), dengan subnet mask default nya adalah 255.0.0.0 atau Classless [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=novitaza.wordpress.com&amp;blog=7355754&amp;post=6&amp;subd=novitaza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><span id="more-6"></span>
<div><strong>IP Address</strong>: merupakan suatu identifikasi perangkat jaringan pada jaringan protokol TCP/IP. Struktur IP Address (IPA) terdiri dari 32 bit(IPv4) yang terbagi menjadi 2 bagian yaitu network dan host dan secara umum diaplikasikan dalam 3 kelas yaitu:</div>
<p align="justify"><strong>Kelas A:</strong> dengan range 1.0.0.0 s/d 126.255.255.255 (127.x.x.x alamat loopback), dengan subnet mask default nya adalah 255.0.0.0 atau Classless Inter Domain Routing (CIDR) 8 bits. IP Private-nya adalah 10.x.x.x.</p>
<p><strong>Kelas B:</strong> dengan range 128.0.0.0 s/d 191.255.255.255, dengan subnetmask defaultnya adalah 255.255.0.0 (CIDR=16bits) dan IP Privatenya 172.16.x.x s/d 172.31.x.x</p>
<p align="justify"><strong>Kelas C:</strong> dengan range 192.0.0.0 s/d 223.255.255.255, dengan subnetmask defaultnya adalah 255.255.255.0 (CIDR=24bits) dan IP Privatenya adalah 192.168.x.x.</p>
<p align="justify">IP Address terbagi atas 2 pengelompokan penggunaan yaitu IP Public dan IP Private. IP Public adalah IPA yang dapat digunakan pada jaringan Internet sedangkan IP Private adalah IPA yang hanya digunakan pada jaringan Lokal.</p>
<p><strong>Subnetting </strong></p>
<div><span class="postbody">untuk mempelajari subnetting, tips nya adalah pahami range ip setiap class dan subnet mask defaultnya.</span></div>
<p><span class="postbody">range IP Class A: 1.0.0.0 s/d 126.255.255.255<br />
subnet mask default : 255.0.0.0 atau CIDR: /8<br />
range IP Class B: 128.0.0.0 s/d 191.255.255.255<br />
subnet mask default : 255.255.0.0 atau CIDR: /16<br />
range IP Class C: 192.0.0.0 s/d 223.255.255.255<br />
subnet mask default : 255.255.255.0 atau CIDR/24</p>
<p>dengan subnet mask kita akan dapat memperoleh ip network dan ip broadcast. caranya adalah:<br />
misalkan host ip yang diberikan 192.168.3.112/24</p>
<p>a)ip network:<br />
192.168.3.112, binernya:<br />
<span style="font-weight:bold;">11000000.10101000.00000111.01110000</span><br />
/24 = 255.255.255.0, binernya:<br />
<span style="font-weight:bold;">11111111.11111111.11111111.00000000</span><br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; AND<br />
<span style="font-weight:bold;">11000000.10101000.00000111.00000000<br />
192 . 168 . 3 . 0</span></p>
<p>b)ip broadcast:<br />
192.168.3.112, binernya:<br />
<span style="font-weight:bold;">11000000.10101000.00000111.01110000</span><br />
/24 = 255.255.255.0, binernya:<br />
11111111.11111111.11111111.00000000, Invertingkan<br />
<span style="font-weight:bold;">00000000.00000000.00000000.11111111</span><br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- OR<br />
<span style="font-weight:bold;">11000000.10101000.00000111.11111111<br />
192 . 168 . 3 . 255</span></p>
<p>contoh di atas tidak ada dilakukan subnetting.</p>
<p>satu contoh lagi, host ip 202.83.100.74/28</p>
<p>a)ip network<br />
202.83.100.74, binernya:<br />
<span style="font-weight:bold;">11001010.01010011.01100100.01001010</span><br />
/28 = 255.255.255.240, binernya:<br />
<span style="font-weight:bold;">11111111.11111111.11111111.11110000</span><br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- AND<br />
<span style="font-weight:bold;">11001010.01010011.01100100.01000000<br />
202 . 83 . 100 . 64</span></p>
<p>b)ip broadcast<br />
202.83.100.74, binernya:<br />
<span style="font-weight:bold;">11001010.01010011.01100100.01001010</span><br />
/28 = 255.255.255.240, binernya:<br />
11111111.11111111.11111111.11110000, invertingkan<br />
<span style="font-weight:bold;">00000000.00000000.00000000.00001111</span><br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- OR<br />
<span style="font-weight:bold;">11001010.01010011.01100100.01001111<br />
202 . 83 . 100 . 79</span></p>
<p> </p>
<p></span></p>
<div><span class="postbody">contoh di atas terjadi subnetting, untuk hitungan yang lebih cepat, kita berpedoman pada subnet mask nya yaitu octet .240, caranya: </span></div>
<div><span class="postbody">karena setiap octet mempunyai nilai 0 s/d 255 maka ada 256 angka, sehingga diperoleh 256-240 = 16 ini adalah block subnet-1 yang valid..berikutnya lakukan kelipatan dari blok subnet-1 ini, sehingga 16,32,48,64,80..dst. nah perhatikanlah nilai host ip diatas yaitu 202.83.100.74 berarti berada antara subnet 64 dan 80. sehingga dapat di simpulkan subnet:64 menjadi network ip 202.83.100.64 dan broadcasnya kita peroleh dari nilai 80-1=79 yaitu 202.83.100.79 </span></div>
<p><span class="postbody"><br />
catatan:<br />
</span></p>
<div><span class="postbody">dalam satu blok subnet ip terendah merupakan ip networknya dan ip tertinggi merupakan ip broadcast. setiap octet terakhir(octet paling kanan) dari ip network pasti merupakan bilangan GENAP dan octet terakhir dari ip broadcast merupakan bilangan GANJIL. </span></div>
<div><span class="postbody"><br />
Tabel subnetmask untuk subnetting:</span></div>
<p><span class="postbody">IP Class A:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
CIDR | Subnet Mask<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
| 9 | 255.128.0.0<br />
| 10 | 255.192.0.0<br />
| 11 | 255.224.0.0<br />
| 12 | 255.240.0.0<br />
| 13 | 255.248.0.0<br />
| 14 | 255.252.0.0<br />
| 15 | 255.254.0.0<br />
| 16 | 255.255.0.0<br />
| 17 | 255.255.128.0<br />
| 18 | 255.255.192.0<br />
| 19 | 255.255.224.0<br />
| 20 | 255.255.240.0<br />
| 21 | 255.255.248.0<br />
| 22 | 255.255.252.0<br />
| 23 | 255.255.254.0<br />
| 24 | 255.255.255.0<br />
| 25 | 255.255.255.128<br />
| 26 | 255.255.255.192<br />
| 27 | 255.255.255.224<br />
| 28 | 255.255.255.240<br />
| 29 | 255.255.255.248<br />
| 30 | 255.255.255.252</p>
<p>IP Class B:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
CIDR | Subnet Mask<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
| 17 | 255.255.128.0<br />
| 18 | 255.255.192.0<br />
| 19 | 255.255.224.0<br />
| 20 | 255.255.240.0<br />
| 21 | 255.255.248.0<br />
| 22 | 255.255.252.0<br />
| 23 | 255.255.254.0<br />
| 24 | 255.255.255.0<br />
| 25 | 255.255.255.128<br />
| 26 | 255.255.255.192<br />
| 27 | 255.255.255.224<br />
| 28 | 255.255.255.240<br />
| 29 | 255.255.255.248<br />
| 30 | 255.255.255.252</p>
<p>IP Class C:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
CIDR | Subnet Mask<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
| 25 | 255.255.255.128<br />
| 26 | 255.255.255.192<br />
| 27 | 255.255.255.224<br />
| 28 | 255.255.255.240<br />
| 29 | 255.255.255.248<br />
| 30 | 255.255.255.252</p>
<p></span></p>
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		<title>Perkakas ‹ Novitaza’s Blog — WordPress</title>
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		<pubDate>Wed, 15 Apr 2009 12:35:58 +0000</pubDate>
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