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    <p>Hi Oleg,</p>
    This thread may help you:
    <a class="moz-txt-link-freetext" href="http://www.lists.cs.ucla.edu/pipermail/ndnsim/2016-December/003254.html">http://www.lists.cs.ucla.edu/pipermail/ndnsim/2016-December/003254.html</a>.<br>
    <br>
    Best,<br>
    Teng<br>
    <br>
    <div class="moz-cite-prefix">On 7/25/17 2:38 AM, Surnin Oleg wrote:<br>
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    <blockquote type="cite"
      cite="mid:e4b402976d1d4589abead10f8dd7b0ce@EXMB01.edu.innopolis.ru">
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        <div name="BB10" id="BB10_response_div_BBPPID" dir="auto"
          style="width:100%;">Dear all,</div>
        <div name="BB10" id="BB10_response_div_BBPPID" dir="auto"
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        <div name="BB10" id="BB10_response_div_BBPPID" dir="auto"
          style="width:100%;">I want to add and then check  some
          additional info when receive Interest or Data(and update  info
          if necessary). </div>
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        <div name="BB10" id="BB10_response_div_BBPPID" dir="auto"
          style="width:100%;">What is the best way to add this info to
           Interests and Data?</div>
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        <div name="BB10" id="response_div_spacer_BBPPID" dir="auto"
          style="width:100%;">I'm thinking about modify the Data and
          Interest classes(add a string variable), but I'm not sure it's
          OK? Or maybe it's possible to add some tag or change header of
          the packet?</div>
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          <div id="_signaturePlaceholder_BBPPID" name="BB10" dir="auto">Best
            regards,<br>
            Oleg .</div>
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