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PacketTracer / opt / pt / help / default / intro.htm
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<p class="MainHeading1">Introduction</p></div>
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<p>Welcome to Cisco Packet Tracer.</p>
<p>Packet Tracer is a medium fidelity, network-capable, simulation-based learning environment for networking novices to design, configure, and troubleshoot computer networks at a CCNA-level of complexity. Packet Tracer is an integrated simulation, visualization, collaboration, and assessment environment. Packet Tracer supports student and instructor creation of simulations, visualizations, and animations of networking phenomena. Like any simulation, Packet Tracer relies on a simplified model of networking devices and protocols. Real computer networks, experienced both in-person/hands-on and remotely, remain the benchmark for understanding network behavior and developing networking skills. Packet Tracer was created to help address the Digital Divide in networking education, where many students and teachers lack access to equipment, bandwidth, and interactive modes of learning networking. We invite you to use the help files and tutorials to learn about the major features of the program, which include the items in the following table.</p></div>
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<table class="tableModules">
  <tr>
    <td width="200" class="TDpadded"><em>Item</em></td>
    <td class="TDpadded"><em>Description</em></td>
  </tr>
  <tr >
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    <td class="TDpadded"><strong>Protocols</strong></td>
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    <td class="TDpadded">
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      <p class="myList"><strong>LAN</strong>: Ethernet (including CSMA/CD*), 802.11 a/b/g/n wireless*, PPPOE</p>
      <p class="myList"><strong>Switching</strong>: VLANs, 802.1q, trunking, VTP, DTP, STP*, RSTP*, multilayer switching*, Etherchannel, LACP, PAgP, IP CEF</p>
      <p class="myList"><strong>TCP/IP</strong>: HTTP, HTTPS, DHCP, DHCPv6, Telnet, SSH, TFTP, DNS, TCP*, UDP, IPv4*, IPv6*, ICMP, ICMPv6, ARP, IPv6 ND, FTP, SMTP, POP3, VOIP(H.323)</p>
      <p class="myList"><strong>Routing</strong>: static, default, RIPv1, RIPv2, EIGRP, single-area OSPF, multi-area OSPF, BGP, inter-VLAN routing, redistribution</p>
      <p class="myList"><strong>Other</strong>: ACLs (standard, extended, and named), CDP, NAT (static, dynamic, inside/outside, and overload), NATv6, Netflow</p>
      <p class="myList"><strong>WAN</strong>: HDLC, SLARP, PPP*, and Frame Relay*</p>
	  <p class="myList"><strong>Security</strong>: IPsec, GRE, ISAKMP, NTP, AAA, RADIUS, TACACS, SNMP, SSH, SYSLOG, CBAC, Zone-based policy firewall, IPS</p>
	  <p class="myList"><strong>QoS</strong>: Layer 2 QoS, Layer 3 Diffserv QoS, FIFO Hardware queues, Priority Queuing, Custom Queuing, Weighted Fair Queuing, MQC, NBAR*</p>
      <p class="myList"><strong>* <em>indicates substantial modeling limitations imposed</em></strong></p>    </td>
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    <td width="200" class="TDpadded"><strong>Logical Workspace</strong></td>
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    <td  class="TDpadded">
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      <p class="myList">Network topology creation</p>
      <p class="myList">Devices: generic, real, and modular with customizable images</p>
      <p class="myList">Routers, switches, hosts (Server, Desktop and Laptop), hubs, bridges, wireless access points, wireless routers, clouds, ASA, and DSL/cable modems</p>
      <p class="myList">Device interconnection through a variety of networking media</p>
      <p class="myList">Multiuser remote networks</p></td>
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    <td class="TDpadded"><strong>Physical Workspace</strong></td>
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    <td class="TDpadded">
      <div tabindex="0">
      <p class="myList">Network topology creation</p>
      <p class="myList">Hierarchy of device, wiring closet, building, city, and intercity views</p>
      <p class="myList">Structured cabling: create BendPoints and GroupPoints in cables and color code cables</p>
      <p class="myList">Ethernet cable length display and length limitation connectivity enforcement</p>
      <p class="myList">Images for devices now customizable and scalable</p>
      <p class="myList">Loading and scaling of user-created graphics</p>
      <p class="myList">Wireless association management</p>
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    </td>
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    <td class="TDpadded"><strong>Realtime Mode</strong></td>
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    <td class="TDpadded">
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      <p class="myList">Realtime protocol updates</p>
      <p class="myList">Medium-fidelity Cisco IOS CLI configuration of routers and switches </p>
      <p class="myList">Menu based configuration of DHCP, DNS, HTTP, TFTP, Syslog, AAA, and NTP servers </p>
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    </td>
  </tr>
  <tr >
    <div tabindex="0">
    <td class="TDpadded"><strong>Simulation Mode </strong></td>
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    <td class="TDpadded">
      <div tabindex="0">
      <p class="myList">Packet animation</p>
      <p class="myList">Global event list (packet sniffer)</p>
      <p class="myList">OSI Model, Detailed PDU, and Device Table Views</p>
      <p class="myList">User-defined multiple packet scenarios</p>
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    </td>
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    <td class="TDpadded"><strong>Local Authoring and Sharing</strong></td>
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    <td class="TDpadded">
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      <p class="myList">Extensive file-saving options</p>
      <p class="myList">Multi-level Activity Wizard for authoring automatically scored practice activities and formative assessment</p>
      <p class="myList">Challenge Mode allowing users to make device algorithm decisions on packets</p>
      <p class="myList">Easily translated GUI</p>
      <p class="myList">Extensive textual and graphical annotation features</p>
      <p class="myList">External Applications (ExApps) through Inter-Process Communication (IPC)</p></td>
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