Exercises pyretic debugging - Revision history

Marumai1: /* Exercise: Pyretic Debugging */

2017-10-12T12:15:58Z

Exercise: Pyretic Debugging

← Older revision		Revision as of 14:15, 12 October 2017
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	'''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently.		'''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently.
	** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.		** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.
	** The basic solution is taken from the Internet [https://dl.~~dropboxusercontent~~.~~com~~/u/~~1652374~~/~~SDN_Course~~/~~Exercises~~/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.		** The basic solution is taken from the Internet [https://projects.gwdg.de/projects/mayutan-public/repository/raw/courses/SDN/2017_2018_WS/exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.
	*** Copy the above code into /home/mininet/pyretic/pyretic/examples as pyretic_gardenwall_internetsolution.py		*** Copy the above code into /home/mininet/pyretic/pyretic/examples as pyretic_gardenwall_internetsolution.py
	*** start controller (in /home/mininet/pyretic folder):		*** start controller (in /home/mininet/pyretic folder):
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	* Now, check if the "exempt" case is working fine too (i.e if h1 is "infected" and "exempt", send it to h3 instead of blocking it)		* Now, check if the "exempt" case is working fine too (i.e if h1 is "infected" and "exempt", send it to h3 instead of blocking it)
	$ python json_sender.py -n exempt -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001		$ python json_sender.py -n exempt -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001
	** (Extra: Not Needed): Try fixing [https://dl.~~dropboxusercontent~~.~~com~~/u/~~1652374~~/~~SDN_Course~~/~~Exercises~~/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.		** (Extra: Not Needed): Try fixing [https://projects.gwdg.de/projects/mayutan-public/repository/raw/courses/SDN/2017_2018_WS/exercises/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.

Marumai1: /* Exercise: Pyretic Debugging */

2017-02-24T11:02:46Z

Exercise: Pyretic Debugging

← Older revision		Revision as of 13:02, 24 February 2017
Line 4:		Line 4:
	** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.		** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.
	*** Copy the above code into /home/mininet/pyretic/pyretic/examples as pyretic_gardenwall_internetsolution.py		*** Copy the above code into /home/mininet/pyretic/pyretic/examples as pyretic_gardenwall_internetsolution.py
	*** start controller (in /home/mininet/pyretic folder): pyretic.py pyretic.examples.~~gardenwall_internetsolution~~		*** start controller (in /home/mininet/pyretic folder):
	*** start mininet: sudo mn --controller=remote --topo=single,3 --mac --arp		$pyretic.py pyretic.examples.pyretic_gardenwall_internetsolution
			*** start mininet:
			$ sudo mn --controller=remote --topo=single,3 --mac --arp
	*** check h1 ping h2		*** check h1 ping h2
	*** Now infect h1 (in /home/mininet/pyretic/pyretic/kinetic folder): python json_sender.py -n infected -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001		*** Now infect h1 (in /home/mininet/pyretic/pyretic/kinetic folder):
			$ python json_sender.py -n infected -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001
	**** NOTE: it is a "small L(-l) and not numeric 1"		**** NOTE: it is a "small L(-l) and not numeric 1"
			**** Note what happens on the pyretic window

	*** check h1 ping h2. We should be able to observe that this traffic is blocked.		*** check h1 ping h2. We should be able to observe that this traffic is blocked.
	*** Now, we move on to the debugging part
	**** check h2 ping h3, what happens?
	**** Now, modify the given code to allow h2 traffic to pass through to h3, when h1 is "infected".
	** Now, check if the "exempt" case is working fine too

	** (Not Needed): Try fixing [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.		== Now, we move on to the debugging part ==
			* check h2 ping h3, what happens?
			* Now, modify the given code to allow h2 traffic to pass through to h3, when h1 is "infected".
			* Now, check if the "exempt" case is working fine too (i.e if h1 is "infected" and "exempt", send it to h3 instead of blocking it)
			$ python json_sender.py -n exempt -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001
			** (Extra: Not Needed): Try fixing [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.

Marumai1: /* Exercise: Pyretic Debugging */

2017-02-24T10:54:30Z

Exercise: Pyretic Debugging

← Older revision		Revision as of 12:54, 24 February 2017
Line 3:		Line 3:
	** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.		** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.
	** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.		** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.
	*** Copy the above code into /home/mininet/pyretic/pyretic/examples as ~~gardenwall_internetsolution~~.py		*** Copy the above code into /home/mininet/pyretic/pyretic/examples as pyretic_gardenwall_internetsolution.py
	*** start controller (in /home/mininet/pyretic folder): pyretic.py pyretic.examples.gardenwall_internetsolution		*** start controller (in /home/mininet/pyretic folder): pyretic.py pyretic.examples.gardenwall_internetsolution
	*** start mininet: sudo mn --controller=remote --topo=single,3 --mac --arp		*** start mininet: sudo mn --controller=remote --topo=single,3 --mac --arp

Marumai1: /* Exercise: Pyretic Debugging */

2016-03-24T07:54:54Z

Exercise: Pyretic Debugging

← Older revision		Revision as of 09:54, 24 March 2016
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	**** Now, modify the given code to allow h2 traffic to pass through to h3, when h1 is "infected".		**** Now, modify the given code to allow h2 traffic to pass through to h3, when h1 is "infected".
	** Now, check if the "exempt" case is working fine too		** Now, check if the "exempt" case is working fine too
	** if time permits, check and improve code to allow h1 to ping h2
	** ~~If time permits, try~~ fixing [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.		** (Not Needed): Try fixing [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.

Marumai1: /* Exercise: Pyretic Debugging */

2016-03-22T16:32:19Z

Exercise: Pyretic Debugging

← Older revision		Revision as of 18:32, 22 March 2016
Line 8:		Line 8:
	*** check h1 ping h2		*** check h1 ping h2
	*** Now infect h1 (in /home/mininet/pyretic/pyretic/kinetic folder): python json_sender.py -n infected -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001		*** Now infect h1 (in /home/mininet/pyretic/pyretic/kinetic folder): python json_sender.py -n infected -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001
			**** NOTE: it is a "small L(-l) and not numeric 1"
	*** check h1 ping h2. We should be able to observe that this traffic is blocked.		*** check h1 ping h2. We should be able to observe that this traffic is blocked.
	*** Now, we move on to the debugging part		*** Now, we move on to the debugging part

Marumai1: /* Exercise: Pyretic Debugging */

2016-03-22T16:00:26Z

Exercise: Pyretic Debugging

← Older revision		Revision as of 18:00, 22 March 2016
Line 2:		Line 2:
	'''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently.		'''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently.
	** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.		** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.
	** We have done kinetic firewall in exercise VII and imitated the same firewall using pox in exercise VIII. Now, we will imitate the same firewall using pyretic.
	** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.		** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.
	*** Copy the above code into /home/mininet/pyretic/pyretic/examples as gardenwall_internetsolution.py		*** Copy the above code into /home/mininet/pyretic/pyretic/examples as gardenwall_internetsolution.py

Marumai1: Created page with "= Exercise: Pyretic Debugging = '''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently. ** In this deb..."

2016-03-15T14:04:18Z

Created page with "= Exercise: Pyretic Debugging = '''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently. ** In this deb..."

New page

= Exercise: Pyretic Debugging =
'''HINT:''' You might have to use the "$ dpctl dump-flows tcp:127.0.0.1:6634" or "mininet> dpctl dump-flows" command frequently.
** In this debugging exercise, we take solutions available in the Internet for the gardenwall problem and try to fix bugs in it.
** We have done kinetic firewall in exercise VII and imitated the same firewall using pox in exercise VIII. Now, we will imitate the same firewall using pyretic.
** The basic solution is taken from the Internet [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution1.py], test if it is able to block h1 when "infected". Note that we will only use the "infected == True" for this exercise.
*** Copy the above code into /home/mininet/pyretic/pyretic/examples as gardenwall_internetsolution.py
*** start controller (in /home/mininet/pyretic folder): pyretic.py pyretic.examples.gardenwall_internetsolution
*** start mininet: sudo mn --controller=remote --topo=single,3 --mac --arp
*** check h1 ping h2
*** Now infect h1 (in /home/mininet/pyretic/pyretic/kinetic folder): python json_sender.py -n infected -l True --flow="{srcmac=00:00:00:00:00:01}" -a 127.0.0.1 -p 50001
*** check h1 ping h2. We should be able to observe that this traffic is blocked.
*** Now, we move on to the debugging part
**** check h2 ping h3, what happens?
**** Now, modify the given code to allow h2 traffic to pass through to h3, when h1 is "infected".
** Now, check if the "exempt" case is working fine too
** if time permits, check and improve code to allow h1 to ping h2
** If time permits, try fixing [https://dl.dropboxusercontent.com/u/1652374/SDN_Course/Exercises/pyretic_gardenwall_internetsolution.py this] code for the "infected" case.