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Date:      Sat, 9 Oct 1999 08:09:06 +0800
From:      "Thomson Pang" <itpang@pd.jaring.my>
To:        <security@FreeBSD.ORG>
Subject:   how to modify packet
Message-ID:  <002f01bf11ea$8111a560$1f448ba1@Sismatik.utm.my>
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[-- Attachment #1 --]
Dear
 
How to modify the packet below to the form 2
    IPv4  |orig IP hdr    |        |         |
            |(any options)| TCP | Data |            ----------------------------
  (form 2)
            -------------------------------------------------
      IPv4|  orig IP hdr  | ESP |        |         |   ESP | ESP|
            |(any options)| Hdr   | TCP | Data | Trailer |Auth|
            -------------------------------------------------
                                |<----- encrypted ---->|
                          |<------ authenticated ----->|


[-- Attachment #2 --]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=text/html;charset=iso-8859-1 http-equiv=Content-Type>
<META content='"MSHTML 4.72.3110.7"' name=GENERATOR>
</HEAD>
<BODY bgColor=#ffffff>
<DIV>
<DIV><FONT color=#000000 size=2>Dear</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>How to modify the packet below to the form 
2<BR>&nbsp;&nbsp;&nbsp; IPv4&nbsp; |orig IP hdr&nbsp;&nbsp;&nbsp; 
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
|<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |(any 
options)| TCP | Data 
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
----------------------------<BR>&nbsp; (form 
2)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
-------------------------------------------------<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
IPv4|&nbsp; orig IP hdr&nbsp; | ESP |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; ESP | 
ESP|<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |(any 
options)| Hdr&nbsp;&nbsp; | TCP | Data | Trailer 
|Auth|<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
-------------------------------------------------<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
|&lt;----- encrypted 
----&gt;|<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
|&lt;------ authenticated -----&gt;|<BR></FONT></DIV></DIV></BODY></HTML>

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