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      <title>1.10. Drahtlose Kommunikation</title>
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         <div id="primarnav"><a class="namedanchor" name="navigation"> <!----> </a><a href="unit_EntwLANBer.xml">Entwicklung des LAN-Bereichs</a><div class="linkseparator">|</div><a href="unit_GrundfBrdg.xml">Grundfunktion einer Transparent-Bridge</a><div class="linkseparator">|</div><a href="unit_Lay2Sw.xml">Der Layer-2-Switch</a><div class="linkseparator">|</div><a href="unit_Lay3Rout.xml">Layer-3-Routing</a><div class="linkseparator">|</div><a href="unit_STPErwCisco.xml">Spanning-Tree-Erweiterungen -- Cisco</a><div class="linkseparator">|</div><a href="unit_STPErwIEEE.xml">Spanning-Tree-Erweiterungen – IEEE</a><div class="linkseparator">|</div><a href="unit_STPOpt.xml">Spanning-Tree-Optionen</a><div class="linkseparator">|</div><a href="unit_SwSec.xml">Switch-Security</a><div class="linkseparator">|</div><a href="unit_VerwHTTP.xml">Verwaltung mit HTTP</a><div class="linkseparator">|</div><a class="activ" href="unit_DrahtL.xml">Drahtlose Kommunikation</a><div class="linkseparator">|</div><a href="unit_VLSMRoutSum.xml">VLSM und Route-Summarization</a><div class="linkseparator">|</div><a href="unit_GrundKonfRIP.xml">Grundlagen und Konfiguration von RIP</a><div class="linkseparator">|</div><a href="unit_AufbAnwAL.xml">Aufbau und Anwendung von Access-Control-Listen</a><div class="linkseparator">|</div><a href="unit_NATProt.xml">Adressübersetzung durch NAT und PAT</a><div class="linkseparator">|</div><a href="unit_VPN.xml">Virtuelle Private Netze (Virtual Private Networks)</a><div class="linkseparator">|</div><a href="unit_KryptIPSecVPNs.xml">Kryptographie und IPSec VPNs</a><div class="linkseparator">|</div><a href="unit_GrundIPv6.xml">Grundlagen von IPv6</a><div class="linkseparator">|</div><a href="unit_SNMP.xml">Simple Network Management Protocol (SNMP)</a><div class="linkseparator">|</div>
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               <p class="titel"><br /><a href="index.xml">1. Netzwerktechnik 2</a></p>
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                  <ul>
                     <li><a href="DrahtL_learningObject1.xml">1.10.1. Warum Wireless-LANs?</a></li>
                     <li><a href="DrahtL_learningObject2.xml">1.10.2. Einsatzgebiet von WLANs</a></li>
                     <li><a href="DrahtL_learningObject3.xml">1.10.3. Überblick von IEEE-802.11x-Standards</a></li>
                     <li><a href="DrahtL_learningObject4.xml">1.10.4. Standard IEEE 802.11</a></li>
                     <li><a href="DrahtL_learningObject5.xml">1.10.5. Frequenzen von IEEE 802.11a</a></li>
                     <li><a href="DrahtL_learningObject6.xml">1.10.6. Weitere Standards – IEEE 802.11h</a></li>
                     <li><a href="DrahtL_learningObject7.xml">1.10.7. Standards – IEEE 802.11b</a></li>
                     <li><a href="DrahtL_learningObject8.xml">1.10.8. Übertragungsmedien – Phasenmodulation</a></li>
                     <li><a href="DrahtL_learningObject9.xml">1.10.9. Übertragungsmedien – Frequenzmodulation</a></li>
                     <li><a href="DrahtL_learningObject10.xml">1.10.10. Übertragungsmedien – Amplitudenmodulation</a></li>
                     <li><a href="DrahtL_learningObject11.xml">1.10.11. Übertragungstechniken – Frequence Hopping Spread Spectrum (FHSS) und Übertragungstechniken – FHSS versus DSSS</a></li>
                     <li><a href="DrahtL_learningObject12.xml">1.10.12. 802.11a versus 802.11b</a></li>
                     <li><a href="DrahtL_learningObject13.xml">1.10.13. Theoretische Datenraten und Reichweiten</a></li>
                     <li><a href="DrahtL_learningObject14.xml">1.10.14. Standards – IEEE 802.11g und Übertragungstechniken – OFDM</a></li>
                     <li><a href="DrahtL_learningObject15.xml">1.10.15. Weitere Standards – IEEE 802.11d</a></li>
                     <li><a href="DrahtL_learningObject16.xml">1.10.16. Weitere Standards – IEEE 802.11e</a></li>
                     <li><a href="DrahtL_learningObject17.xml">1.10.17. Zugriffsmethode</a></li>
                     <li><a href="DrahtL_learningObject18.xml">1.10.18. Weitere Standards – IEEE 802.11f</a></li>
                     <li><a href="DrahtL_learningObject19.xml">1.10.19. Weitere Standards – IEEE 802.11i</a></li>
                     <li><a href="DrahtL_learningObject20.xml">1.10.20. Sicherheit und Open-System- sowie Shared-Key-Authentifizierung</a></li>
                     <li><a href="DrahtL_learningObject21.xml">1.10.21. WEP und WEP-Schwächen</a></li>
                     <li><a href="DrahtL_learningObject22.xml">1.10.22. WPA1</a></li>
                     <li><a href="DrahtL_learningObject23.xml">1.10.23. TKIP</a></li>
                     <li><a href="DrahtL_learningObject24.xml">1.10.24. Radius-EAP</a></li>
                     <li><a href="DrahtL_learningObject25.xml">1.10.25. Sicherheit</a></li>
                     <li><a href="DrahtL_learningObject26.xml">1.10.26. Grundlegende Sicherheitsfeatures</a></li>
                     <li><a href="DrahtL_learningObject27.xml">1.10.27. Arbeitsmodus – ADHOC</a></li>
                     <li><a href="DrahtL_learningObject28.xml">1.10.28. Arbeitsmodus – Access-Point</a></li>
                     <li><a href="DrahtL_learningObject29.xml">1.10.29. Arbeitsmodus – Point-to-Point-Bridge</a></li>
                     <li><a href="DrahtL_learningObject30.xml">1.10.30. Arbeitsmodus – Point-to-Multipoint-Bridge</a></li>
                     <li><a href="DrahtL_learningObject31.xml">1.10.31. Arbeitsmodus – Access-Point-Client</a></li>
                     <li><a href="DrahtL_learningObject32.xml">1.10.32. Arbeitsmodus – Repeating-Modus</a></li>
                     <li><a href="DrahtL_learningObject33.xml">1.10.33. WDS – Wireless Distributed System</a></li>
                     <li><a href="DrahtL_learningObject34.xml">1.10.34. Verteilung der Kanäle</a></li>
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                  <li><a href="CR2-EG_glossary.xml">1.19. Glossar</a></li>
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                  <li><a href="CR2-EG_index.xml">1.20. Stichwortverzeichnis</a></li>
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               <h1 id="unit_DrahtL.xml">1.10. Drahtlose Kommunikation</h1>
               <div id="DrahtL_entry.xml">
                  <table class="table" id="d8e9084" width="100%">
                     <thead>
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                           <th class="tableheading" id="d8e9086" style="text-align: center; ">Kapitelübersicht</th>
                        </tr>
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                           <td class="tabledata" id="d8e9089">
                              <p class="paragraph" id="d8e9090">Die drahtlose Kommunikation durch Wireless-LANs (WLANs) hat sich
                                 							in allen Bereichen, ob bei Privatanwendern oder in der Industrie,
                                 							etabliert. Diese Übertragungstechnik ist kaum noch wegzudenken. Sie
                                 							erleichtert nicht nur den initialen Installationsaufwand, sondern
                                 							liefert eine enorme Flexibilität für die Anwender.
                              </p>
                              <p class="paragraph" id="d8e9092">Dieses Kapitel beschäftigt sich mit den wichtigsten Aspekten von
                                 							WLANs.
                              </p>
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               <h2 id="DrahtL_goals.xml">Lernziele</h2>
               <ul class="goals">
                  <li class="lObjectiveAlt">Allgemeines zur drahtlosen Kommunikation</li>
                  <li class="lObjective">Standards</li>
                  <li class="lObjectiveAlt">Sicherheit</li>
                  <li class="lObjective">Arbeitsmodi</li>
               </ul>
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