data into code blocks
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nbillard
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1 changed files with 32 additions and 1 deletions
33
tp.md
33
tp.md
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@ -19,7 +19,7 @@ tsock -s insa-20155 5678
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```
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Sur la machine puit, on observe TODO rajouter l'entête
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```
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PUITS: lg_buf_appli=30, port=5678, nb_buf_appli=infini, TP= tcp
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PUITS: socket
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PUITS: Reception n° 1 ( 30) [ 1aaaaaaaaaaaaaaaaaaaaaaaaa]
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@ -32,10 +32,12 @@ PUITS: Reception n° 7 ( 30) [ 7ggggggggggggggggggggggggg]
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PUITS: Reception n° 8 ( 30) [ 8hhhhhhhhhhhhhhhhhhhhhhhhh]
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PUITS: Reception n° 9 ( 30) [ 9iiiiiiiiiiiiiiiiiiiiiiiii]
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PUITS: Reception n° 10 ( 30) [ 10jjjjjjjjjjjjjjjjjjjjjjjjj]
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```
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Sur la machine source, on observe
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```
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SOURCE: lg_buf_appli=30, port=5678, nb_buf_appli=10, TP= tcp -> insa-20155
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SOURCE: socket
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SOURCE: connect
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@ -50,6 +52,7 @@ SOURCE: Envoi n° 7 ( 30) [ 7ggggggggggggggggggggggggg]
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SOURCE: Envoi n° 8 ( 30) [ 8hhhhhhhhhhhhhhhhhhhhhhhhh]
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SOURCE: Envoi n° 9 ( 30) [ 9iiiiiiiiiiiiiiiiiiiiiiiii]
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SOURCE: Envoi n° 10 ( 30) [ 10jjjjjjjjjjjjjjjjjjjjjjjjj]
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```
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*Observation* :
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@ -71,6 +74,7 @@ tsock -s -u insa-20155 5678
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À la source, on observe:
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```
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SOURCE: lg_buf_appli=30, port=5678, nb_buf_appli=10, TP= udp -> insa-20155
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SOURCE: socket
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SOURCE: Envoi n° 1 ( 30) [ 1aaaaaaaaaaaaaaaaaaaaaaaaa]
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@ -83,9 +87,11 @@ SOURCE: Envoi n° 7 ( 30) [ 7ggggggggggggggggggggggggg]
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SOURCE: Envoi n° 8 ( 30) [ 8hhhhhhhhhhhhhhhhhhhhhhhhh]
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SOURCE: Envoi n° 9 ( 30) [ 9iiiiiiiiiiiiiiiiiiiiiiiii]
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SOURCE: Envoi n° 10 ( 30) [ 10jjjjjjjjjjjjjjjjjjjjjjjjj]
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```
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Dans le puit, on observe
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```
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PUITS: lg_buf_appli=30, port=5678, nb_buf_appli=infini, TP= udp
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PUITS: socket
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PUITS: Reception n° 1 ( 30) [ 1aaaaaaaaaaaaaaaaaaaaaaaaa]
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@ -108,6 +114,7 @@ PUITS: Reception n° 17 ( 30) [ 9iiiiiiiiiiiiiiiiiiiiiiiii]
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PUITS: Reception n° 18 ( 30) [ 9iiiiiiiiiiiiiiiiiiiiiiiii]
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PUITS: Reception n° 19 ( 30) [ 10jjjjjjjjjjjjjjjjjjjjjjjjj]
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PUITS: Reception n° 20 ( 30) [ 10jjjjjjjjjjjjjjjjjjjjjjjjj]
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```
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*Observation* :
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@ -127,6 +134,7 @@ tsock -s -u -n 20 insa-20155 5678
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Output de la source
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```
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SOURCE: lg_buf_appli=30, port=5678, nb_buf_appli=20, TP= udp -> insa-20155
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PUITS: socket
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SOURCE: Envoi n° 1 ( 30) [ 1aaaaaaaaaaaaaaaaaaaaaaaaa]
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@ -149,8 +157,10 @@ SOURCE: Envoi n° 17 ( 30) [ 17qqqqqqqqqqqqqqqqqqqqqqqqq]
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SOURCE: Envoi n° 18 ( 30) [ 18rrrrrrrrrrrrrrrrrrrrrrrrr]
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SOURCE: Envoi n° 19 ( 30) [ 19sssssssssssssssssssssssss]
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SOURCE: Envoi n° 20 ( 30) [ 20ttttttttttttttttttttttttt]
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```
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Output du puit
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```
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PUITS: lg_buf_appli=30, port=5678, nb_buf_appli=infini, lg_buf_TP=10, TP= udp
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PUITS: socket
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PUITS: setsockopt: rcvbuf OK
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@ -165,6 +175,7 @@ PUITS: Reception n° 7 ( 20) [ 9iiiiiiiiiiiiiii]
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PUITS: Reception n° 8 ( 20) [ 15ooooooooooooooo]
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PUITS: Reception n° 9 ( 20) [ 17qqqqqqqqqqqqqqq]
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PUITS: Reception n° 10 ( 20) [ 18rrrrrrrrrrrrrrr]
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```
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> On peut aussi enlever l'affichage et augmenter le nombre de messages
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@ -185,10 +196,12 @@ tsock -s insa-20155 5678
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On observe
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```
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SOURCE: lg_buf_appli=30, port=5678, nb_buf_appli=10, TP= tcp -> insa-20155
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SOURCE: socket
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SOURCE: connect: Connection refused
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errno=111
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```
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Sur la machine puits
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@ -217,6 +230,7 @@ tsock -p -u 5678
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On observe à la source
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```
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SOURCE: lg_buf_appli=30, port=5678, nb_buf_appli=10, TP= udp -> insa-20155
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SOURCE: socket
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SOURCE: Envoi n° 1 ( 30) [ 1aaaaaaaaaaaaaaaaaaaaaaaaa]
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@ -229,9 +243,11 @@ SOURCE: Envoi n° 7 ( 30) [ 7ggggggggggggggggggggggggg]
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SOURCE: Envoi n° 8 ( 30) [ 8hhhhhhhhhhhhhhhhhhhhhhhhh]
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SOURCE: Envoi n° 9 ( 30) [ 9iiiiiiiiiiiiiiiiiiiiiiiii]
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SOURCE: Envoi n° 10 ( 30) [ 10jjjjjjjjjjjjjjjjjjjjjjjjj]
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```
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Quand on envoie beaucoup de données, on observe dans le puit
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```
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PUITS: lg_buf_appli=30, port=5678, nb_buf_appli=infini, TP= udp
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PUITS: socket
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PUITS: Reception n° 26406 ( 30) [-2125wwwwwwwwwwwwwwwwwwwwwwwww]
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@ -255,6 +271,7 @@ PUITS: Reception n° 26423 ( 30) [-2124ggggggggggggggggggggggggg]
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PUITS: Reception n° 26424 ( 30) [-2124ggggggggggggggggggggggggg]
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PUITS: Reception n° 26425 ( 30) [-2124hhhhhhhhhhhhhhhhhhhhhhhhh]
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PUITS: Reception n° 26426 ( 30) [-2124hhhhhhhhhhhhhhhhhhhhhhhhh]
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```
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*Observation* :
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@ -279,6 +296,7 @@ sudo tcpdump port 5678
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Quand on envoie des données TCP avec un puit présent, on observe
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```
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09:08:17.635928 IP insa-20154.insa-toulouse.fr.51189 > insa-20155.insa-toulouse.fr.5678: Flags [S], seq 601705128, win 64240, options [mss 1460,sackOK,TS val 4131103046 ecr 0,nop,wscale 10], length 0
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09:08:17.636037 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.51189: Flags [S.], seq 4035589501, ack 601705129, win 65160, options [mss 1460,sackOK,TS val 621274796 ecr 4131103046,nop,wscale 10], length 0
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09:08:17.636081 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.51189: Flags [S.], seq 4035589501, ack 601705129, win 65160, options [mss 1460,sackOK,TS val 621274796 ecr 4131103046,nop,wscale 10], length 0
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@ -292,19 +310,23 @@ Quand on envoie des données TCP avec un puit présent, on observe
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09:08:17.636864 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.51189: Flags [F.], seq 1, ack 302, win 63, options [nop,nop,TS val 621274810 ecr 4131103047], length 0
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09:08:17.636919 IP insa-20154.insa-toulouse.fr.51189 > insa-20155.insa-toulouse.fr.5678: Flags [.], ack 2, win 63, options [nop,nop,TS val 4131103047 ecr 621274810], length 0
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09:08:17.637055 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.51189: Flags [R], seq 4035589503, win 0, length 0
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```
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Quand on envoie des données TCP sans puit présent, on observe
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```
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09:27:40.382167 IP insa-20154.insa-toulouse.fr.35073 > insa-20155.insa-toulouse.fr.5678: Flags [S], seq 2178196670, win 64240, options [mss 1460,sackOK,TS val 4132265792 ecr 0,nop,wscale 10], length 0
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09:27:40.382229 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.35073: Flags [R.], seq 0, ack 2178196671, win 0, length 0
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09:27:40.382167 IP insa-20154.insa-toulouse.fr.35073 > insa-20155.insa-toulouse.fr.5678: Flags [S], seq 2178196670, win 64240, options [mss 1460,sackOK,TS val 4132265792 ecr 0,nop,wscale 10], length 0
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09:27:40.382255 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.35073: Flags [R.], seq 0, ack 1, win 0, length 0
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09:27:40.382471 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.35073: Flags [R.], seq 0, ack 1, win 0, length 0
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09:27:40.382472 IP insa-20155.insa-toulouse.fr.5678 > insa-20154.insa-toulouse.fr.35073: Flags [R.], seq 0, ack 1, win 0, length 0
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```
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Quand on envoie des données UDP avec puit ou sans puit, on observe
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```
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09:10:25.056896 IP insa-20154.insa-toulouse.fr.32851 > insa-20155.insa-toulouse.fr.5678: UDP, length 30
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09:10:25.056896 IP insa-20154.insa-toulouse.fr.32851 > insa-20155.insa-toulouse.fr.5678: UDP, length 30
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09:10:25.056896 IP insa-20154.insa-toulouse.fr.32851 > insa-20155.insa-toulouse.fr.5678: UDP, length 30
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@ -325,6 +347,7 @@ Quand on envoie des données UDP avec puit ou sans puit, on observe
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09:10:25.057001 IP insa-20154.insa-toulouse.fr.32851 > insa-20155.insa-toulouse.fr.5678: UDP, length 30
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09:10:25.057001 IP insa-20154.insa-toulouse.fr.32851 > insa-20155.insa-toulouse.fr.5678: UDP, length 30
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09:10:25.057001 IP insa-20154.insa-toulouse.fr.32851 > insa-20155.insa-toulouse.fr.5678: UDP, length 30
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```
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### Observations
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@ -338,8 +361,10 @@ Quand on envoie des données UDP avec puit ou sans puit, on observe
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tsock -s -l 40 insa-20155 5678
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```
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```
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09:17:12.042983 IP insa-20154.insa-toulouse.fr.56003 > insa-20155.insa-toulouse.fr.5678: Flags [P.], seq 1:41, ack 1, win 63, options [nop,nop,TS val 4131637453 ecr 621809196], length 40
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09:17:12.043174 IP insa-20154.insa-toulouse.fr.56003 > insa-20155.insa-toulouse.fr.5678: Flags [FP.], seq 41:401, ack 1, win 63, options [nop,nop,TS val 4131637453 ecr 621809196], length 360
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```
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## Question 4
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@ -351,20 +376,24 @@ sudo tcpdump -xx port 5678
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Trame TCP
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```
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0x0000: 1866 da44 b21f 1866 da44 b5ac 0800 4500
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0x0010: 0052 ffb4 4000 4006 2483 0a01 0136 0a01
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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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```
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Trame UDP
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```
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0x0000: 1866 da44 b21f 1866 da44 b5ac 0800 4500
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0x0010: 003a 5137 4000 4011 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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```
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### Analyse des résultats
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@ -383,7 +412,9 @@ Trame UDP
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sudo tcpdump -xx broadcast
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```
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```
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0x0000: ffff ffff ffff 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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```
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