http://livre.g6.asso.fr/index.php?action=history&feed=atom&title=Exemples_d%27extensions Exemples d'extensions - Revision history 2026-05-24T22:37:24Z Revision history for this page on the wiki MediaWiki 1.25.2 http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=3439&oldid=prev Bruno Stévant: /* Exemple de fragmentation */ 2007-02-20T21:07:39Z <p>‎<span dir="auto"><span class="autocomment">Exemple de fragmentation</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 21:07, 20 February 2007</td> </tr><tr><td colspan="2" class="diff-lineno" id="L57" >Line 57:</td> <td colspan="2" class="diff-lineno">Line 57:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; 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color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;05 b0&lt;/font&gt; 2c &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;05 b0&lt;/font&gt; 2c &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; 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color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 18:09, 5 March 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L57" >Line 57:</td> <td colspan="2" class="diff-lineno">Line 57:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;05 b0&lt;/font&gt; 2c &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;05 b0&lt;/font&gt; 2c &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;''</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; 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Si l'on prend en compte la taille des extensions (8 octets), on retrouve bien la taille des informations utiles (1 456) transportées dans le paquet précédent.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>{{suivi |Les extensions|Les extensions|Checksum au niveau transport|Checksum au niveau transport}}</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>{{suivi |Les extensions|Les extensions|Checksum au niveau transport|Checksum au niveau transport}}</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=3056&oldid=prev Laurent Toutain: /* Exemple de fragmentation */ 2006-03-05T18:01:56Z <p>‎<span dir="auto"><span class="autocomment">Exemple de fragmentation</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 18:01, 5 March 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L54" >Line 54:</td> <td colspan="2" class="diff-lineno">Line 54:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; 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2c &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;05 b0&lt;/font&gt; 2c &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; ''0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;''</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=3055&oldid=prev Laurent Toutain: /* Exemple de fragmentation */ 2006-03-05T18:01:14Z <p>‎<span dir="auto"><span class="autocomment">Exemple de fragmentation</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 18:01, 5 March 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L54" >Line 54:</td> <td colspan="2" class="diff-lineno">Line 54:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Port Source : 0xf38e Port Destination : 0x000d</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Port Source : 0xf38e Port Destination : 0x000d</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Longueur : 3508 (0x0db4) Checksum : 0xc227</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Longueur : 3508 (0x0db4) Checksum : 0xc227</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0000: <del class="diffchange diffchange-inline">60 00 </del>00 00 05 b0 2c 40 3f fe 03 02 00 12 00 02</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160;</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 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vertical-align: top; white-space: pre-wrap;"><div>&#160; 0020: 02 a0 c9 ff fe aa 22 01|11 00 00 <del class="diffchange diffchange-inline">01 </del>00 00 00 8e|</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0010: 00 00 00 00 00 00 00 13 <ins class="diffchange diffchange-inline">&lt;font color=&quot;blue&quot;&gt;</ins>3f fe 03 02 00 12 00 05<ins class="diffchange diffchange-inline">&lt;/font&gt;''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0030: f3 8e 00 0d 0d b4 c2 27 30 31 32 33 34 35 36 37</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0020: <ins class="diffchange diffchange-inline">&lt;font color=&quot;blue&quot;&gt;</ins>02 a0 c9 ff fe aa 22 01<ins class="diffchange diffchange-inline">&lt;/font&gt;</ins>|11 <ins class="diffchange diffchange-inline">&lt;font color=&quot;blue&quot;&gt;</ins>00 00 <ins class="diffchange diffchange-inline">0&lt;/font&gt;1 &lt;font color=&quot;blue&quot;&gt;</ins>00 00 00 8e<ins class="diffchange diffchange-inline">&lt;/font&gt;</ins>|<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0040: 38 39 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0030: f3 8e 00 0d 0d b4 c2 27 30 31 32 33 34 35 36 37<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0050: 4f 50 51 52 53 54 55 56 57 58 59 5a 61 62 63 64</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0040: 38 39 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0050: 4f 50 51 52 53 54 55 56 57 58 59 5a 61 62 63 64<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0070: ...</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0060: 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 74<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0070: ...<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Le bit &lt;tt&gt;M&lt;/tt&gt; de l'option de fragmentation est à &lt;tt&gt;1&lt;/tt&gt;, un autre fragment va suivre.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Le bit &lt;tt&gt;M&lt;/tt&gt; de l'option de fragmentation est à &lt;tt&gt;1&lt;/tt&gt;, un autre fragment va suivre.</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=3053&oldid=prev Laurent Toutain: /* Exemple de routage par la source */ 2006-03-05T17:51:44Z <p>‎<span dir="auto"><span class="autocomment">Exemple de routage par la source</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 17:51, 5 March 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L23" >Line 23:</td> <td colspan="2" class="diff-lineno">Line 23:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Checksum : 0x356e Ptr Msg Urgent : 0x0000</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Checksum : 0x356e Ptr Msg Urgent : 0x0000</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Options TCP</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Options TCP</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; <del class="diffchange diffchange-inline">''</del></div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; 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font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0020: &lt;font color=&quot;blue&quot;&gt;02 a0 c9 ff fe aa 22 01&lt;/font&gt;|06 &lt;font color=&quot;blue&quot;&gt;02&lt;/font&gt; 00 &lt;font color=&quot;blue&quot;&gt;01&lt;/font&gt; 00 00 00 00</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0020: &lt;font color=&quot;blue&quot;&gt;02 a0 c9 ff fe aa 22 01&lt;/font&gt;|06 &lt;font color=&quot;blue&quot;&gt;02&lt;/font&gt; 00 &lt;font color=&quot;blue&quot;&gt;01&lt;/font&gt; 00 00 00 00<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0030: &lt;font color=&quot;blue&quot;&gt;3f fe 03 05 10 02 00 01 02 00 c0 ff fe 11 cb a0&lt;/font&gt;|</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0030: &lt;font color=&quot;blue&quot;&gt;3f fe 03 05 10 02 00 01 02 00 c0 ff fe 11 cb a0&lt;/font&gt;|<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0040: ff b1 00 17 17 10 7e 57 00 00 00 00 a0 02 40 00</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0040: ff b1 00 17 17 10 7e 57 00 00 00 00 a0 02 40 00<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0050: 35 6e 00 00 02 04 05 a0 01 03 03 00 01 01 08 0a</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0050: 35 6e 00 00 02 04 05 a0 01 03 03 00 01 01 08 0a<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 00 9a 1d 04 00 00 00 0b''</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins>0060: 00 9a 1d 04 00 00 00 0b''</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole &lt;tt&gt;0x2b&lt;/tt&gt; indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole &lt;tt&gt;0x2b&lt;/tt&gt; indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. 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color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Checksum : 0x356e Ptr Msg Urgent : 0x0000</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Checksum : 0x356e Ptr Msg Urgent : 0x0000</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Options TCP</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Options TCP</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;00 40&lt;/font&gt; 2b &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0000: 6&lt;font color=&quot;blue&quot;&gt;0 0&lt;/font&gt;0 00 00 &lt;font color=&quot;blue&quot;&gt;00 40&lt;/font&gt; 2b &lt;font color=&quot;blue&quot;&gt;40&lt;/font&gt; 3f fe 03 02 00 12 00 02</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0010: 00 00 00 00 00 00 00 13 &lt;font color=&quot;blue&quot;&gt;3f fe 03 02 00 12 00 05&lt;/font&gt;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; 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font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 00 9a 1d 04 00 00 00 0b<ins class="diffchange diffchange-inline">''</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole &lt;tt&gt;0x2b&lt;/tt&gt; indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole &lt;tt&gt;0x2b&lt;/tt&gt; indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=3051&oldid=prev Laurent Toutain: /* Exemple de routage par la source */ 2006-03-05T17:49:59Z <p>‎<span dir="auto"><span class="autocomment">Exemple de routage par la source</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 17:49, 5 March 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L24" >Line 24:</td> <td colspan="2" class="diff-lineno">Line 24:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Options TCP</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; Options TCP</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; 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vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 00 9a 1d 04 00 00 00 0b</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 00 9a 1d 04 00 00 00 0b</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; &#160;</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole 0x2b indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole <ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>0x2b<ins class="diffchange diffchange-inline">&lt;/tt&gt; </ins>indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>La partie extension commence par l'encapsulation suivante, ici &lt;tt&gt;0x06&lt;/tt&gt; pour TCP. Le champ suivant (&lt;tt&gt;0x02&lt;/tt&gt;) donne la longueur de l'extension en mots de 64 bits. La partie données contient donc une seule adresse IPv6. Il s'agit de la destination. Le type de routage vaut &lt;tt&gt;0&lt;/tt&gt; et le champ segment restant vaut &lt;tt&gt;1&lt;/tt&gt; et pointe vers l'adresse de destination.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>La partie extension commence par l'encapsulation suivante, ici &lt;tt&gt;0x06&lt;/tt&gt; pour TCP. Le champ suivant (&lt;tt&gt;0x02&lt;/tt&gt;) donne la longueur de l'extension en mots de 64 bits. La partie données contient donc une seule adresse IPv6. Il s'agit de la destination. Le type de routage vaut &lt;tt&gt;0&lt;/tt&gt; et le champ segment restant vaut &lt;tt&gt;1&lt;/tt&gt; et pointe vers l'adresse de destination.</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=2874&oldid=prev Laurent Toutain: /* Exemple de fragmentation */ 2006-02-18T13:44:21Z <p>‎<span dir="auto"><span class="autocomment">Exemple de fragmentation</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 13:44, 18 February 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L63" >Line 63:</td> <td colspan="2" class="diff-lineno">Line 63:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0070: ...</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0070: ...</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Le bit M de l'option de fragmentation est à 1, un autre fragment va suivre.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Le bit <ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>M<ins class="diffchange diffchange-inline">&lt;/tt&gt; </ins>de l'option de fragmentation est à <ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>1<ins class="diffchange diffchange-inline">&lt;/tt&gt;</ins>, un autre fragment va suivre.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; 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color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0080: ...</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0080: ...</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Ce fragment est la suite du précédent puisque la valeur de l'identificateur est la même (0x0000008e), le bit M étant à 1, d'autres fragments vont suivre. 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Si l'on prend en compte la taille des extensions (8 octets), on retrouve bien la taille des informations utiles (1 456) transportées dans le paquet précédent.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>{{suivi |Les extensions|Les extensions|Checksum au niveau transport|Checksum au niveau transport}}</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>{{suivi |Les extensions|Les extensions|Checksum au niveau transport|Checksum au niveau transport}}</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=2873&oldid=prev Laurent Toutain: /* Exemple de routage par la source */ 2006-02-18T13:43:24Z <p>‎<span dir="auto"><span class="autocomment">Exemple de routage par la source</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 13:43, 18 February 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L34" >Line 34:</td> <td colspan="2" class="diff-lineno">Line 34:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole 0x2b indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Dans l'en-tête IPv6, le numéro de protocole 0x2b indique qu'une extension de routage est insérée. Noter que le champ longueur des données utiles prend en compte la longueur de l'extension. Le champ adresse de destination de l'en-tête IPv6 contient l'adresse du routeur intermédiaire.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>La partie extension commence par l'encapsulation suivante, ici 0x06 pour TCP. Le champ suivant (0x02) donne la longueur de l'extension en mots de 64 bits. La partie données contient donc une seule adresse IPv6. Il s'agit de la destination. Le type de routage vaut 0 et le champ segment restant vaut 1 et pointe vers l'adresse de destination.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>La partie extension commence par l'encapsulation suivante, ici <ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>0x06<ins class="diffchange diffchange-inline">&lt;/tt&gt; </ins>pour TCP. Le champ suivant (<ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>0x02<ins class="diffchange diffchange-inline">&lt;/tt&gt;</ins>) donne la longueur de l'extension en mots de 64 bits. La partie données contient donc une seule adresse IPv6. Il s'agit de la destination. Le type de routage vaut <ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>0<ins class="diffchange diffchange-inline">&lt;/tt&gt; </ins>et le champ segment restant vaut <ins class="diffchange diffchange-inline">&lt;tt&gt;</ins>1<ins class="diffchange diffchange-inline">&lt;/tt&gt; </ins>et pointe vers l'adresse de destination.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Exemple de fragmentation ==</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Exemple de fragmentation ==</div></td></tr> </table> Laurent Toutain http://livre.g6.asso.fr/index.php?title=Exemples_d%27extensions&diff=2527&oldid=prev Laurent Toutain: /* Exemple de fragmentation */ 2006-01-29T22:03:08Z <p>‎<span dir="auto"><span class="autocomment">Exemple de fragmentation</span></span></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 22:03, 29 January 2006</td> </tr><tr><td colspan="2" class="diff-lineno" id="L85" >Line 85:</td> <td colspan="2" class="diff-lineno">Line 85:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0060: 30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0070: 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; 0070: 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>&#160; <del class="diffchange diffchange-inline">080</del>: ...</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>&#160; <ins class="diffchange diffchange-inline">0080</ins>: ...</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Ce fragment est la suite du précédent puisque la valeur de l'identificateur est la même (0x0000008e), le bit M étant à 1, d'autres fragments vont suivre. Le champ Place du fragment contient 1 448. Si l'on prend en compte la taille des extensions (8 octets), on retrouve bien la taille des informations utiles (1 456) transportées dans le paquet précédent.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Ce fragment est la suite du précédent puisque la valeur de l'identificateur est la même (0x0000008e), le bit M étant à 1, d'autres fragments vont suivre. Le champ Place du fragment contient 1 448. Si l'on prend en compte la taille des extensions (8 octets), on retrouve bien la taille des informations utiles (1 456) transportées dans le paquet précédent.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>{{suivi |Les extensions|Les extensions|Checksum au niveau transport|Checksum au niveau transport}}</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>{{suivi |Les extensions|Les extensions|Checksum au niveau transport|Checksum au niveau transport}}</div></td></tr> </table> Laurent Toutain