2024-01-16 14:56:43 -06:00
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<?php
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echo '<html>
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<head>
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<title>25U Routing Practice</title>
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</head>
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<body>';
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//Example picture
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2024-01-16 16:34:30 -06:00
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echo '<img src=/assets/25u/example_network2.png style="width:100%;height:auto;" />';
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2024-01-16 14:56:43 -06:00
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echo '<h3>IP Chart</h3>';
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// RFC1918
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$seed = rand(1,3);
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switch($seed) {
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case 1: $base="10.".rand(0,255) ; break;
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case 2: $base="172.".rand(16,31) ; break;
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case 3: $base="192.168" ; break;
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}
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// Random Class C
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$thirdoctet=rand(0,255);
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// Find three nonidentical nets
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$netid1=rand(0,7);
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$netid2=$netid1;
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while ($netid2==$netid1) {
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$netid2=rand(0,7);
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}
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$netid3=$netid1;
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while ($netid1==$netid3 OR $netid2==$netid3) {
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$netid3=rand(0,7);
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}
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// Format display
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$displaynet1 = $base.'.'.$thirdoctet.'.'.($netid1*32).'/'.rand(27,29);
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$displaynet2 = $base.'.'.$thirdoctet.'.'.($netid2*32).'/'.rand(27,29);
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$displaynet3 = $base.'.'.$thirdoctet.'.'.($netid3*32).'/30';
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// Render
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echo '<table style="width:100%;"><tr><th style="width:150px;">Device</th><th style="width:150px;">Interface</th><th style="width:150px;">NetID</th><th style="width:150px;">IP Address</th></tr>';
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echo '
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<tr><th style="border: 1px solid;" colspan=4>Network 3</th style="border: 1px solid;"></tr>
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<tr><td style="border:1px solid;">RTR1</td style="border:1px solid;"><td style="border:1px solid;">G0/1</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet3.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">RTR2</td style="border:1px solid;"><td style="border:1px solid;">G0/1</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet3.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><th style="border: 1px solid;" colspan=4>Network 1</th style="border: 1px solid;"></tr>
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<tr><td style="border:1px solid;">RTR1</td style="border:1px solid;"><td style="border:1px solid;">G0/0</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet1.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">SW1</td style="border:1px solid;"><td style="border:1px solid;">VLAN 1</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet1.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">PC1</td style="border:1px solid;"><td style="border:1px solid;">NIC</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet1.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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2024-01-16 16:34:30 -06:00
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<tr><td style="border:1px solid;">WAP1</td style="border:1px solid;"><td style="border:1px solid;">NIC</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet1.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">LTP1</td style="border:1px solid;"><td style="border:1px solid;">Wireless</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet1.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">Printer 1</td style="border:1px solid;"><td style="border:1px solid;">Wireless</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet1.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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2024-01-16 14:56:43 -06:00
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<tr><th style="border: 1px solid;" colspan=4>Network 2</th style="border: 1px solid;"></tr>
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<tr><td style="border:1px solid;">RTR2</td style="border:1px solid;"><td style="border:1px solid;">G0/0</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet2.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">SW2</td style="border:1px solid;"><td style="border:1px solid;">VLAN 1</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet2.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">PC2</td style="border:1px solid;"><td style="border:1px solid;">NIC</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet2.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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2024-01-16 16:34:30 -06:00
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<tr><td style="border:1px solid;">WAP2</td style="border:1px solid;"><td style="border:1px solid;">NIC</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet2.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">LTP2</td style="border:1px solid;"><td style="border:1px solid;">Wireless</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet2.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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<tr><td style="border:1px solid;">Printer 2</td style="border:1px solid;"><td style="border:1px solid;">Wireless</td style="border:1px solid;"><td style="border:1px solid;">'.$displaynet2.'<td style="border:1px solid;"> </td style="border:1px solid;"></tr>
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2024-01-16 14:56:43 -06:00
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';
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echo '</table>';
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echo '</body></html>';
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