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71 lines
2.6 KiB
Python
71 lines
2.6 KiB
Python
import configparser
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from colorama import Fore, Style
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from mininet.net import Mininet
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from mininet.topo import Topo
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from mininet.node import Node
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from mininet.cli import CLI
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from mininet.link import TCLink
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from mininet.log import setLogLevel
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class MyRouter (Node):
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def config(self, **params):
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super(MyRouter, self).config(**params)
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self.cmd('sysctl net.ipv4.ip_forward=1') #Enable forwarding on the router
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def terminate(self):
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self.cmd('sysctl net.ipv4.ip_forward=0') #Disable forwarding on the router
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super(MyRouter, self).terminate
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def build_topology(config_file):
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topo = Topo()
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elements = {} # Dictionary to store nodes
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# h1 = topo.addHost('H1', ip='161.46.247.2/25', defaultRoute='via 161.46.247.1')
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# h2 = topo.addHost('H2', ip='161.46.247.3/25', defaultRoute='via 161.46.247.1')
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r0 = topo.addNode('R0', cls=MyRouter, ip='163.172.250.12/16')
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r1 = topo.addNode('R1', cls=MyRouter, ip='163.172.250.12/28')
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r2 = topo.addNode('R2', cls=MyRouter, ip='161.46.247.253/30')
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topo.addLink(r0, r1, intfName2='R12', intfName1='R01', params2={'ip' : '163.172.250.12/28'}, params1={'ip' : '163.172.250.12/16'})
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topo.addLink(r2, r1, intfName2='R13', intfName1='R21', params2={'ip' : '161.46.247.254/30'}, params1={'ip' : '161.46.247.253/30'})
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# s1 = topo.addSwitch('S1')
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# h4 = topo.addHost('H4', ip='161.46.247.131/26', defaultRoute='via 161.46.247.129')
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# h3 = topo.addHost('H3', ip='161.46.247.196/27', defaultRoute='via 161.46.247.195')
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### Ordine importante ###
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# topo.addLink(r1, s1, intfName1='R11', params1={'ip' : '161.46.247.1/25'})
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# topo.addLink(r2, h3, intfName2='H31', intfName1='R22', params1={'ip' : '161.46.247.195/27'})
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# topo.addLink(r2, h4, intfName2='H41', intfName1='R23', params1={'ip' : '161.46.247.129/26'})
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# topo.addLink(s1, h1, intfName2='H11')
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# topo.addLink(s1, h2 ,intfName2='H21')
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return topo
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def run_topology(config_file):
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setLogLevel('info') #Different logging levels are 'info' 'warning' 'error' 'debug'
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topo = build_topology(config_file)
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net = Mininet(topo=topo, link=TCLink)
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net.start() #Starting the network
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(net.getNodeByName('R1')).cmd('ip route add default via 161.172.250.1/26')
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(net.getNodeByName('R1')).cmd('ip route add 161.46.247.128/27 via 161.46.247.253')
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# (net.getNodeByName('R1')).cmd('ip route add 161.46.247.192/27 via 161.46.247.254 dev R13')
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# (net.getNodeByName('R1')).cmd('ip route add 161.46.247.128/26 via 161.46.247.254 dev R13')
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if net.pingAll():
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print(Fore.RED + "Network has issues" + Style.RESET_ALL)
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else:
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print(Fore.GREEN + "Network working properly" + Style.RESET_ALL)
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CLI(net)
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net.stop() #Stopping the network
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if __name__ == '__main__':
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run_topology('MininetTopo.conf') |