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2014-10-03T01:37:19Z
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Digimer: Created page with "{{header}} CIDR is short for 'Classless Internet Domain Routing'. The Wikipedia article below does a great job at explaining CIDR in detail. For most cases, however, CIDR [[..."
2014-10-03T01:34:29Z
<p>Created page with "{{header}} CIDR is short for 'Classless Internet Domain Routing'. The Wikipedia article below does a great job at explaining CIDR in detail. For most cases, however, CIDR [[..."</p>
<p><b>Páàjì titun</b></p><div>{{header}}<br />
<br />
CIDR is short for 'Classless Internet Domain Routing'. The Wikipedia article below does a great job at explaining CIDR in detail.<br />
<br />
For most cases, however, CIDR [[IPv4]] notation is used as a short-form way of expressing a subnet mask.<br />
<br />
Conversion table:<br />
<br />
{|class="wikitable sortable"<br />
!CIDR Notation<br />
!Total number of addresses<br />
!Network Mask<br />
!Description<br />
|-<br />
|class="code"|/0<br />
|class="code"|4,294,967,296<br />
|class="code"|0.0.0.0<br />
|Every Address<br />
|-<br />
|class="code"|/1<br />
|class="code"|2,147,483,648<br />
|class="code"|128.0.0.0<br />
|128 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/2<br />
|class="code"|1,073,741,824<br />
|class="code"|192.0.0.0<br />
|64 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/3<br />
|class="code"|536,870,912<br />
|class="code"|224.0.0.0<br />
|32 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/4<br />
|class="code"|268,435,456<br />
|class="code"|240.0.0.0<br />
|16 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/5<br />
|class="code"|134,217,728<br />
|class="code"|248.0.0.0<br />
|8 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/6<br />
|class="code"|67,108,864<br />
|class="code"|252.0.0.0<br />
|4 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/7<br />
|class="code"|33,554,432<br />
|class="code"|254.0.0.0<br />
|2 <span class="code">/8</span> networks<br />
|-<br />
|class="code"|/8<br />
|class="code"|16,777,214<br />
|class="code"|255.0.0.0<br />
|1 <span class="code">/8</span> net<br />
|-<br />
|class="code"|/9<br />
|class="code"|8,388,608<br />
|class="code"|255.128.0.0<br />
|128 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/10<br />
|class="code"|4,194,304<br />
|class="code"|255.192.0.0<br />
|64 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/11<br />
|class="code"|2,097,152<br />
|class="code"|255.224.0.0<br />
|32 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/12<br />
|class="code"|1,048,576<br />
|class="code"|255.240.0.0<br />
|16 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/13<br />
|class="code"|524,288<br />
|class="code"|255.248.0.0<br />
|8 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/14<br />
|class="code"|262,144<br />
|class="code"|255.252.0.0<br />
|4 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/15<br />
|class="code"|131.072<br />
|class="code"|255.254.0.0<br />
|2 <span class="code">/16</span> networks<br />
|-<br />
|class="code"|/16<br />
|class="code"|65,536<br />
|class="code"|255.255.0.0<br />
|1 <span class="code">/16</span> network<br />
|-<br />
|class="code"|/17<br />
|class="code"|32,768<br />
|class="code"|255.255.128.0<br />
|128 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/18<br />
|class="code"|16,384<br />
|class="code"|255.255.192.0<br />
|64 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/19<br />
|class="code"|8,192<br />
|class="code"|255.255.224.0<br />
|32 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/20<br />
|class="code"|4,096<br />
|class="code"|255.255.240.0<br />
|16 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/21<br />
|class="code"|2,048<br />
|class="code"|255.255.248.0<br />
|8 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/22<br />
|class="code"|1,024<br />
|class="code"|255.255.252.0<br />
|4 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/23<br />
|class="code"|512<br />
|class="code"|255.255.254.0<br />
|2 <span class="code">/24</span> networks<br />
|-<br />
|class="code"|/24<br />
|class="code"|256<br />
|class="code"|255.255.255.0<br />
|1 <span class="code">/24</span> network<br />
|-<br />
|class="code"|/25<br />
|class="code"|128<br />
|class="code"|255.255.255.128<br />
|Half of a <span class="code">/24</span> network<br />
|-<br />
|class="code"|/26<br />
|class="code"|64<br />
|class="code"|255.255.255.192<br />
|Fourth of a <span class="code">/24/span> network<br />
|-<br />
|class="code"|/27<br />
|class="code"|32<br />
|class="code"|255.255.255.224<br />
|Eighth of a <span class="code">/24/span> network<br />
|-<br />
|class="code"|/28<br />
|class="code"|16<br />
|class="code"|255.255.255.240<br />
|1/16th of a <span class="code">/24/span> network<br />
|-<br />
|class="code"|/29<br />
|class="code"|8<br />
|class="code"|255.255.255.248<br />
|5 Usable addresses<br />
|-<br />
|class="code"|/30<br />
|class="code"|4<br />
|class="code"|255.255.255.252<br />
|1 Usable address<br />
|-<br />
|class="code"|/31<br />
|class="code"|2<br />
|class="code"|255.255.255.254<br />
|Unusable<br />
|-<br />
|class="code"|/32<br />
|class="code"|1<br />
|class="code"|255.255.255.255<br />
|Single host<br />
|}<br />
<br />
* [http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing Wikipedia article]<br />
<br />
{{footer}}</div>
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