Changes between Version 2 and Version 3 of GENIExperimenter/Tutorials/jacks/GetStart_PartI_IPRoute/Procedure/Execute


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Timestamp:
10/30/14 16:59:38 (5 years ago)
Author:
sedwards@bbn.com
Comment:

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  • GENIExperimenter/Tutorials/jacks/GetStart_PartI_IPRoute/Procedure/Execute

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    9696              <li> <b>What happens when you traceroute from A to IP address 192.168.2.12 after you setup the static routes? </b> <br/>In your writeup include a screenshot of the traceroute output.</li>
    9797             </ol>
    98 }}} 
     98
     99<table id="Table_03" border="0" cellpadding="5" cellspacing="0">
     100        <tr>
     101                <td>
     102                        <img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/Symbols-Tips-icon.png?format=raw" width="50" height="50" alt="Tip">
     103               </td>
     104               <td>
     105<ul>
     106   <li>If you get a "Command not found " error when executing standard commands like `ifconfig` add `sbin` to your path:
     107    <pre>
     108       export PATH=$PATH:/sbin
     109    </pre>
     110    </li>
     111  <li>Remember that you can use “ifconfig” to determine which Ethernet interface (e.g., eth0) is bound to what IP address at each of the nodes.</li>
     112  <li>In order to enable IP forwarding of packets on a node you have to execute the following command:
     113    <pre>
     114sudo sh -c 'echo 1 > /proc/sys/net/ipv4/ip_forward'
     115    </pre>
     116  </li>
     117  <li>A new slice will always be in its initial state with NO routing set up!</li>
     118  <li>A useful tool to debug the packet flow is [http://www.tcpdump.org/ tcpdump]. In order to install it run:
     119    <pre>
     120       sudo apt-get install tcpdump
     121    </pre>
     122  </li>
     123  </ul>
     124        </td>
     125             
     126        </tr>
     127</table>
     128
     129}}}
    99130
    100131=== 5.2 Exercise B: Explore the Data and Control Planes ===