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tp.md
107
tp.md
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@ -398,51 +398,88 @@ __Reprendre la Question 1 et capturer les trammes Ethernet avec `tcpdump`__
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sudo tcpdump -xx port 5678
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sudo tcpdump -xx port 5678
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```
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```
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Trame TCP (numéro de protocole 6)
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Trame TCP (numéro de protocole <span style="color:red">6</span>)
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---
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0x0000: 1866 da44 b21f 1866 da44 b5ac 0800 4500 \
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0x0000: 1866 da44 b21f 1866 da44 b5ac 0800 4500
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0x0010: 0052 ffb4 4000 40<span style="color:red">06</span> 2483 0a01 0136 0a01 \
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0x0020: 0137 82d5 162e 71c3 ecc9 8136 b67a 8018 \
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0x0010: 0052 ffb4 4000 40<span style="color:red">06</span> 2483 0a01 0136 0a01
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0x0030: 003f 307c 0000 0101 080a f647 4eb2 2513 \
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0x0040: 93ec 2020 2020 3161 6161 6161 6161 6161 \
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0x0020: 0137 82d5 162e 71c3 ecc9 8136 b67a 8018
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0x0030: 003f 307c 0000 0101 080a f647 4eb2 2513
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0x0040: 93ec 2020 2020 3161 6161 6161 6161 6161
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0x0050: 6161 6161 6161 6161 6161 6161 6161 6161
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0x0050: 6161 6161 6161 6161 6161 6161 6161 6161
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---
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Trame UDP (numéro de protocole 17)
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0x0000: 1866 da44 b21f 1866 da44 b5ac 0800 4500 \
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Trame UDP (numéro de protocole <span style="color:red">17</span>)
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0x0010: 003a 5137 4000 40<span style="color:red">11</span> d30d 0a01 0136 0a01 \
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0x0020: 0137 9535 162e 0026 3b9e 2020 2020 3161 \
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---
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0x0030: 6161 6161 6161 6161 6161 6161 6161 6161 \
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0x0000: 1866 da44 b21f 1866 da44 b5ac 0800 4500
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0x0010: 003a 5137 4000 40<span style="color:red">11</span> d30d 0a01 0136 0a01
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0x0020: 0137 9535 162e 0026 3b9e 2020 2020 3161
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0x0030: 6161 6161 6161 6161 6161 6161 6161 6161
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0x0040: 6161 6161 6161 6161
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0x0040: 6161 6161 6161 6161
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### Analyse des résultats
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### Analyse des résultats
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Adresse Ethernet de la source: 18:66:da:44:b5:ac \
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Adresse Ethernet de la source: <span style="color:blue">18:66:da:44:b5:ac</span>
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Adresse IP de la source: 10.1.1.54 \
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Port de la source: 33493
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Adresse IP de la source: <span style="color:green">10.1.1.54</span>
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Port de la source: <span style="color:red">33493</span>
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---
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0x0000: 1866 da44 b21f <span style="color:blue">1866 da44 b5ac </span>0800 4500
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0x0010: 0052 ffb4 4000 4006 2483 <span style="color:green">0a01 0136 </span>0a01
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0x0020: 0137 <span style="color:red">82d5</span> 162e 71c3 ecc9 8136 b67a 8018
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0x0030: 003f 307c 0000 0101 080a f647 4eb2 2513
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0x0040: 93ec 2020 2020 3161 6161 6161 6161 6161
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0x0000: 1866 da44 b21f <span style="color:red">1866 da44 b5ac </span>0800 4500 \
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0x0010: 0052 ffb4 4000 4006 2483 <span style="color:red">0a01 0136 </span>0a01 \
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0x0020: 0137 <span style="color:red">82d5</span> 162e 71c3 ecc9 8136 b67a 8018 \
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0x0030: 003f 307c 0000 0101 080a f647 4eb2 2513 \
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0x0040: 93ec 2020 2020 3161 6161 6161 6161 6161 \
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0x0050: 6161 6161 6161 6161 6161 6161 6161 6161
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0x0050: 6161 6161 6161 6161 6161 6161 6161 6161
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Adresse Ethernet du puits: 18:66:da:44:b2:1f \
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---
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Adresse IP du puits: 10.1.1.55 \
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Port du puits: 5678
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Adresse Ethernet du puits: <span style="color:blue">18:66:da:44:b2:1f</span>
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Adresse IP du puits: <span style="color:green">10.1.1.55</span>
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Port du puits: <span style="color:red">5678</span>
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---
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0x0000: <span style="color:blue">1866 da44 b21f</span> 1866 da44 b5ac 0800 4500
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0x0010: 0052 ffb4 4000 4006 2483 0a01 0136 <span style="color:green">0a01</span>
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0x0020: <span style="color:green">0137</span> 82d5 <span style="color:red">162e</span> 71c3 ecc9 8136 b67a 8018
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0x0030: 003f 307c 0000 0101 080a f647 4eb2 2513
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0x0040: 93ec 2020 2020 3161 6161 6161 6161 6161
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0x0000: <span style="color:red">1866 da44 b21f</span> 1866 da44 b5ac 0800 4500 \
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0x0010: 0052 ffb4 4000 4006 2483 0a01 0136 <span style="color:red">0a01</span> \
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0x0020: <span style="color:red">0137</span> 82d5 <span style="color:red">162e</span> 71c3 ecc9 8136 b67a 8018 \
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0x0030: 003f 307c 0000 0101 080a f647 4eb2 2513 \
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0x0040: 93ec 2020 2020 3161 6161 6161 6161 6161 \
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0x0050: 6161 6161 6161 6161 6161 6161 6161 6161
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0x0050: 6161 6161 6161 6161 6161 6161 6161 6161
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tsock en mode source choisi un port au hasard probablement entre 1024 et 65535 (non spécifié dans le manuel)
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tsock en mode source choisi un port au hasard probablement entre 1024 et 65535 (non spécifié dans le manuel)
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## Question 5
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## Question 5
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@ -458,10 +495,16 @@ Le mode broadcast permet de transmettre des trames à toutes les machines sur le
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sudo tcpdump -xx broadcast
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sudo tcpdump -xx broadcast
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```
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```
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Adresse de broadcast: ff:ff:ff:ff:ff:ff
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Adresse de broadcast: <span style="color:red">ff:ff:ff:ff:ff:ff</span>
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---
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0x0000: <span style="color:red">ffff ffff ffff</span> f8a2 d66e dac3 0806 0001
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0x0010: 0800 0604 0001 f8a2 d66e dac3 0a20 2965
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0x0020: 0000 0000 0000 a9fe a9fe 0000 0000 0000
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0x0000: <span style="color:red">ffff ffff ffff</span> f8a2 d66e dac3 0806 0001 \
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0x0010: 0800 0604 0001 f8a2 d66e dac3 0a20 2965 \
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0x0020: 0000 0000 0000 a9fe a9fe 0000 0000 0000 \
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0x0030: 0000 0000 0000 0000
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0x0030: 0000 0000 0000 0000
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