63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
from mininet.topo import Topo
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from mininet.net import Mininet
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from mininet.util import dumpNodeConnections
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from mininet.log import setLogLevel
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from mininet.cli import CLI
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from mininet.nodelib import NAT
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class MyTopo(Topo):
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def build(self):
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switch1 = self.addSwitch('s1')
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switch2 = self.addSwitch('s2')
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host1 = self.addHost('h1')
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host2 = self.addHost('h2')
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host3 = self.addHost('h3')
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host4 = self.addHost('h4')
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host5 = self.addHost('h5')
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host6 = self.addHost('h6')
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nat0 = self.addHost('nat0', cls=NAT, subnet='10.1.0.0/16', inNamespace=False)
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self.addLink(host1,switch1)
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self.addLink(host2,switch1)
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self.addLink(host3,switch1)
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self.addLink(host4,switch1)
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self.addLink(host1,switch2)
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self.addLink(host5,switch2)
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self.addLink(host6,switch2)
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self.addLink(nat0,switch1)
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def simpleTest():
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topo = MyTopo()
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net = Mininet(topo,ipBase="10.1.0.0/16")
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net.start()
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net['h1'].sendCmd("ip a del 10.1.0.1 dev h1-eth0")
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net['h2'].sendCmd("ip a del 10.1.0.2 dev h2-eth0")
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net['h3'].setIP("10.1.0.3",24,'h3-eth0')
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net['h4'].setIP("10.1.0.4",24,'h4-eth0')
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net['h5'].setIP("10.1.1.2",24,'h5-eth0')
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net['h6'].setIP("10.1.1.3",24,'h6-eth0')
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net['h2'].waitOutput()
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net['h2'].sendCmd("route add -net 10.1.1.0 netmask 255.255.255.0 gw 10.1.0.1")
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net['h3'].sendCmd("route add -net 10.1.1.0 netmask 255.255.255.0 gw 10.1.0.1")
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net['h4'].sendCmd("route add -net 10.1.1.0 netmask 255.255.255.0 gw 10.1.0.1")
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net['h5'].sendCmd("route add -net 10.1.0.0 netmask 255.255.255.0 gw 10.1.1.1")
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net['h6'].sendCmd("route add -net 10.1.0.0 netmask 255.255.255.0 gw 10.1.1.1")
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net['h1'].waitOutput()
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net['h1'].sendCmd("kitty &")
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net['h1'].waitOutput()
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net['h2'].waitOutput()
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net['h3'].waitOutput()
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net['h4'].waitOutput()
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net['h5'].waitOutput()
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net['h6'].waitOutput()
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net['h3'].setDefaultRoute('via 10.1.0.7')
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net['h4'].setDefaultRoute('via 10.1.1.1')
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net['h5'].setDefaultRoute('via 10.1.1.1')
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net['h6'].setDefaultRoute('via 10.1.1.1')
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CLI(net)
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net.stop()
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if __name__ == '__main__':
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# Tell mininet to print useful information
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setLogLevel('info')
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simpleTest()
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