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ccna

<p class="smtext">Estimated time: 20 min.</p>
<p align="left">
                                    <span class="resourceSectionTitle">Objectives:</span>
                                </p>
                                <blockquote>
                                    <span class="smtext">
                                        <ul type="disc">
<li>Use Network Inspector (or equivalent) software problem logging function to monitor network management information such as errors, warnings and changes.</li>
</ul>
                                    </span>
                                </blockquote>
<p align="left">
                                    <span class="resourceSectionTitle">Background:</span>
                                </p>
                                <blockquote>
                                    <p class="smtext">Network Management is an important part of a networking professional's responsibilities. One of the most common network management tasks is keeping track of IP addresses. You have been reading about IP addresses and subnets. The Network Analysis software will allow you to get the "big picture" of how IP addresses are assigned on your networks and subnetworks. It will also allow you to access detailed information from the problem log for errors (such as incorrect subnet mask), warnings (such as incorrect IP address), and changes (such as IP address change).</p>
                                </blockquote>
<p align="left">
                                    <span class="resourceSectionTitle">Tools / Preparation:</span>
                                </p>
                                <blockquote>
                                    <p class="smtext">Each PC must be running Windows (95, 98, NT, 2000), Microsoft TCP/IP stack, and Winsock 2.0. Fluke Network Inspector 3.0 (or equivalent) must be installed on each PC. During the installation of the software you must specify which network adapter (NIC, dialup, and so on) you wish to monitor - specify the NIC which attaches the PC to an Ethernet. The PCs should be on either a 10BASE-T or 100BASE-TX Ethernet network which preferably includes servers, switches, routers, and printers (this will make the network discovery more interesting). The following resources will be required:</p>
                                    <span class="smtext">
                                        <ul type="disc">
<li>PC with Windows 95 or better, Microsoft TCP/IP stack, and Winsock 2.0.</li>
<li>Fluke Network Inspector 3.0 Software</li>
</ul>
                                    </span>
                                </blockquote>
<p align="left">
                                    <span class="resourceSectionTitle">Worksheet</span>
                                </p>
                                <blockquote>
                                    <span class="smtext">
                                        <ol>
<li>Make sure you are connected to the network. How can you verify this?
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
</li>
<li>Log into network inspector agent, set database tab to overwrite, and start the agent running.</li>
<li>Open network inspector console, watch until network discovery appears to have stopped. Stop agent.</li>
<li>Go to Help --> About the problem log and troubleshooting problems --> errors, warnings and changes that can be discovered - does a list appear?
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
</li>
<li>Review the list. Choose three errors, three warnings, and three changes that you believe are important and describe them in your own words.
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
                                            </li>
<li>Return to database view. Are there any errors, warnings, and changes that have appeared? If you instructor tells you so, try starting and stopping the agent again, rediscovering the network, and seeing if the instructor has caused any errors, warnings, or changes. Note these changes in your journal.
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
                                            </li>
<li>Can you draw a topology of the network based on the IP addresses and subnetwork information obtained? Go ahead and try.
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
<p class="smtext">
                                                    <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
                                            </li>
</ol>
                                    </span>
                                </blockquote>
<p align="left">
                                    <span class="resourceSectionTitle">Reflection:</span>
                                </p>
                                <blockquote>
                                    <p class="smtext">Imagine you are a network administrator. Describe how this software would be useful to you.</p>
                                    <p class="smtext">
                                        <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
                                    <p class="smtext">
                                        <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
                                    <p class="smtext">
                                        <img border="0" src="../../../../../CHAPID=knet-v214aCH47507/RLOID=knet-v214aRLO47677/RIOID=knet-v214aRIO125368/knet/v214aclixsi144/line450.gif" width="450" height="1"></p>
                                </blockquote>
<p align="left">
                                    <span class="resourceTitle">LAB 7.6.3 NETWORK INSPECTOR PROBLEM LOG - ANSWERS</span>
                                </p>
                                <p align="left">
                                    <span class="resourceAnswerSectionTitle"></span>
                                </p>
                                <blockquote>
                                    <span class="smtext">
                                        <ol class="resourceAnswer">
<li>Make sure you are connected to the network. How can you verify this?
<p class="resourceAnswer">
                                                    <b>
                                                        <u>The link light on your NIC is lit and the other LED is indicating network traffic. You examine your cable run and note that you are connected to a hub or switch. You are able to send and receive email and access the Internet (if your network is connected). You can "ping" other machines IP addresses.</u>
                                                    </b>
                                                </p>
                                            </li>
<li>Log into network inspector agent, set database tab to overwrite, and start the agent running.
<p class="resourceAnswer">
                                                    <b>
                                                        <u>The agent should indicate it is running.</u>
                                                    </b>
                                                </p>
                                            </li>
<li>Open network inspector console, watch until network discovery appears to have stopped. Stop agent.
<p class="resourceAnswer">
                                                    <b>
                                                        <u>Depending on the size of your network, this may take a few seconds.</u>
                                                    </b>
                                                </p>
                                            </li>
<li>Go to Help --> About the problem log and troubleshooting problems --> errors, warnings and changes that can be discovered - does a list appear?
<p class="resourceAnswer">
                                                    <b>
                                                        <u>Yes, three lists appear detailing the errors, warnings, and changes that can be discovered. Many of these are common network management problems.</u>
                                                    </b>
                                                </p>
                                            </li>
<li>Review the list. Choose three errors, three warnings, and three changes that you believe are important and describe them in your own words.
<p class="resourceAnswer">
                                                    <b>
                                                        <u>Students should use the online help to obtain these descriptions.</u>
                                                    </b>
                                                </p>
                                            </li>
<li>Return to database view. Are there any errors, warnings, and changes that have appeared? If you instructor tells you so, try starting and stopping the agent again, rediscovering the network, and seeing if the instructor has caused any errors, warnings, or changes. Note these changes in your journal.</li>
<li>Can you draw a topology of the network based on the IP addresses and subnetwork information obtained?
<p class="resourceAnswer">
                                                    <b>
                                                        <u>Go ahead and try. Yes, topology information can be obtained by grouping hosts by subnet and inferring things like router ports and switch placement. (Note if you have NI 4.0 you can obtain this topology automatically).</u>
                                                    </b>
                                                </p>
                                            </li>
</ol>
                                    </span>
                                </blockquote>
                                <p align="left">
                                    <span class="resourceAnswerSectionTitle">Reflection:</span>
                                </p>
                                <blockquote>
                                    <p class="resourceAnswer">Imagine you are a network administrator. Describe how this software would be useful to you.</p>
                                    <p class="resourceAnswer">
                                        <b>
                                            <u>Network administrators often have to keep track of dozens or hundreds of computers, on several or more subnetworks, with routers, switches, and servers all around the network. Even in a well-designed and well-run network, keeping track of all of the IP addresses, MAC addresses, descriptions, and topology of these devices can be a challenge. Network Inspector and other network management software make this task easier, especially as users needs (and hence the network topology) changes.</u>
                                        </b> </p>
                                </blockquote>
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