# Computer-Netzwerke (Udemy)

Mitschrift aus Udemy Kurs Computer-Netzwerke

[Course: Computer-Netzwerke (CompTIA Network+) - der umfassende Kurs | Udemy](https://www.udemy.com/course/computer-netzwerke-network/learn/lecture/6616674#overview)

## Netzklassen

<table border="1" id="bkmrk-klasse-bereich-a-1-1" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 50%;"></col><col style="width: 50%;"></col></colgroup><tbody><tr><td>Klasse</td><td>Bereich</td></tr><tr><td>A</td><td>1-127</td></tr><tr><td>B</td><td>127-191</td></tr><tr><td>C</td><td>192-223</td></tr></tbody></table>

### Subnetzmasken

Beispiel für 4 Subnuetze

<table border="1" id="bkmrk-bit-8-7-6-5-4-3-2-1-" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col><col style="width: 11.1111%;"></col></colgroup><tbody><tr><td>Bit</td><td>8</td><td>7</td><td>6</td><td>5</td><td>4</td><td>3</td><td>2</td><td>1</td></tr><tr><td>Wert</td><td>**128**</td><td>**64**</td><td>32</td><td>16</td><td>8</td><td>4</td><td>2</td><td>1</td></tr></tbody></table>

Klasse C Netz: 192.168.125.0

<table border="1" id="bkmrk-dazugeh%C3%B6rige-subnetz" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 50%;"></col><col style="width: 50%;"></col></colgroup><tbody><tr><td>**Dazugehörige Subnetzmaske**</td><td>255.255.255.192</td></tr><tr><td>1. Subnetz: 1. Host</td><td>192.168.125.1</td></tr><tr><td>1. Subnetz: Letzer Host</td><td>192.168.125.62</td></tr><tr><td>Broadcast</td><td>192.168.125.63</td></tr><tr><td>2. Subnetz: </td><td>192.168.125.64</td></tr><tr><td>1. Host</td><td>192.168.125.65</td></tr><tr><td>Letzer Host</td><td>192.168.125.126</td></tr><tr><td>Broadcast</td><td>192.168.125.127</td></tr></tbody></table>