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[mininet-discuss] Mac-address-table overflow attack

Gandhimathi Velusamy mathiyuva at gmail.com
Mon Apr 21 22:35:10 PDT 2014


Hi,
I tried the MAC-overflow attack demo. I set up environment as explained.
And when I tried to emulate the Mininet environment, I am getting the
following error.:
gandhi at ubuntu:~/cs144_security$ sudo ./run.sh
start cs144 buffer bloat experiment
starting mininet ....
Traceback (most recent call last):
  File "macoverflow.py", line 67, in <module>
    bbnet()
  File "macoverflow.py", line 51, in bbnet
    autoPinCpus=True)
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/net.py",
line 160, in __init__
    self.build()
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/net.py",
line 308, in build
    self.buildFromTopo( self.topo )
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/net.py",
line 282, in buildFromTopo
    self.addHost( hostName, **topo.nodeInfo( hostName ) )
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/net.py",
line 182, in addHost
    h = cls( name, **defaults )
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/node.py",
line 556, in __init__
    CPULimitedHost.init()
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/node.py",
line 704, in init
    mountCgroups()
  File
"/usr/local/lib/python2.7/dist-packages/mininet-0.0.0-py2.7.egg/mininet/util.py",
line 365, in mountCgroups
    raise Exception( "cgroups not mounted on " + cgdir )
Exception: cgroups not mounted on /sys/fs/cgroup
cleaning up...
tcpdump: no process found
ping: no process found
end
gandhi at ubuntu:~/cs144_security$


May I know How to get rid of this error.


Thanks.

Gandhimathi
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