<div>
<style scoped>
    .dataframe tbody tr th:only-of-type {
        vertical-align: middle;
    }

    .dataframe tbody tr th {
        vertical-align: top;
    }

    .dataframe thead th {
        text-align: right;
    }
</style>
<table border="1" class="dataframe">
  <thead>
    <tr style="text-align: right;">
      <th></th>
      <th>Source Port</th>
      <th>Destination Port</th>
      <th>NAT Source Port</th>
      <th>NAT Destination Port</th>
      <th>Action</th>
      <th>Bytes</th>
      <th>Bytes Sent</th>
      <th>Bytes Received</th>
      <th>Packets</th>
      <th>Elapsed Time (sec)</th>
      <th>pkts_sent</th>
      <th>pkts_received</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>0</th>
      <td>57222</td>
      <td>53</td>
      <td>54587</td>
      <td>53</td>
      <td>allow</td>
      <td>177</td>
      <td>94</td>
      <td>83</td>
      <td>2</td>
      <td>30</td>
      <td>1</td>
      <td>1</td>
    </tr>
    <tr>
      <th>1</th>
      <td>56258</td>
      <td>3389</td>
      <td>56258</td>
      <td>3389</td>
      <td>allow</td>
      <td>4768</td>
      <td>1600</td>
      <td>3168</td>
      <td>19</td>
      <td>17</td>
      <td>10</td>
      <td>9</td>
    </tr>
    <tr>
      <th>2</th>
      <td>6881</td>
      <td>50321</td>
      <td>43265</td>
      <td>50321</td>
      <td>allow</td>
      <td>238</td>
      <td>118</td>
      <td>120</td>
      <td>2</td>
      <td>1199</td>
      <td>1</td>
      <td>1</td>
    </tr>
    <tr>
      <th>3</th>
      <td>50553</td>
      <td>3389</td>
      <td>50553</td>
      <td>3389</td>
      <td>allow</td>
      <td>3327</td>
      <td>1438</td>
      <td>1889</td>
      <td>15</td>
      <td>17</td>
      <td>8</td>
      <td>7</td>
    </tr>
    <tr>
      <th>4</th>
      <td>50002</td>
      <td>443</td>
      <td>45848</td>
      <td>443</td>
      <td>allow</td>
      <td>25358</td>
      <td>6778</td>
      <td>18580</td>
      <td>31</td>
      <td>16</td>
      <td>13</td>
      <td>18</td>
    </tr>
  </tbody>
</table>
</div>

   Source Port  Destination Port  NAT Source Port  NAT Destination Port  \
0        57222                53            54587                    53   
1        56258              3389            56258                  3389   
2         6881             50321            43265                 50321   
3        50553              3389            50553                  3389   
4        50002               443            45848                   443   

  Action  Bytes  Bytes Sent  Bytes Received  Packets  Elapsed Time (sec)  \
0  allow    177          94              83        2                  30   
1  allow   4768        1600            3168       19                  17   
2  allow    238         118             120        2                1199   
3  allow   3327        1438            1889       15                  17   
4  allow  25358        6778           18580       31                  16   

   pkts_sent  pkts_received  
0          1              1  
1         10              9  
2          1              1  
3          8              7  
4         13             18  

Source Port
58638    840
27005    513
443      273
57470    222
49418    210
6881     177
0        173
50584    116
3478     105
26900    102
Name: count, dtype: int64

Notebook

What are the most common source ports?