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2614Segments with no flags set

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  • bryan@terran.org
    May 30, 2001
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      I recently encountered an interoperability problem between a firewall and a
      Voice-over-IP hardware device (with embedded TCP stack), where the VoIP box
      would begin to send segments with no flags set (including ACK) over an
      established session. Although I've never observed such use of TCP before,
      I can't find hard evidence that indicates it is a violation of spec. Can
      anyone confirm if this is truly against the law?

      # bryan at terran dot org
      # http://www.terran.org/~bryan
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