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ip-packet

  • Category : Printing program
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  • Update : 2012-11-26
  • Size : 209kb
  • Downloaded :0次
  • Author :hyboo
  • About : Nobody
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Introduction - If you have any usage issues, please Google them yourself
(1) 从数据包文件如“packet.pkt”中读取分组,并输入一个整数值作为MTU。首先计算分组头校验和,判断分组接收是否正确,然后检查分组长度是否超过MTU。如果长度超过MTU,则检查DF位:若DF位为1,打印出错信息;否则对IP包进行分片,生成各分片的文件,如Fragment1.pkt、Fragment2.pkt等。 (2) 读取上一步得到的各分片文件,首先计算头校验,检查分片是否正确;然后将各个分片组装成一个完整的分组,并保存在一个数据包文件如“MergedPkt.pkt”中;比较MergePkt.pkt与原始的packet.pkt的数据部分内容,以检验分组分片和重组是否成功。尝试不按顺序读入各个片段,验证重组程序是否仍然能够正确重组分组。
Packet file list
(Preview for download)
exp_4.doc
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