ping two cars passing by RSU in Vanet.py

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Akrãm Kün

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May 17, 2021, 10:02:53 AM5/17/21

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Hello,

I'm working on your example of vanet.py . when for example a car4 passes near RSU11 and car7 passes near RSU12 , i cant ping them through RSUs, the only ping that is working is between cars (v2v) and betwen RSU (I2I) . where is that problem came from?

why i can't set an ip for interface wlan1 of the RSU?

Thank you.

this is the screenshot of the topology :

this is the 'vanet.py' code:

#!/usr/bin/python

'Simple idea around Vehicular Ad Hoc Networks - VANETs'

import sys

from random import randint

from mininet.node import DefaultController, RemoteController

from mininet.log import setLogLevel, info

from mn_wifi.cli import CLI

from mn_wifi.net import Mininet_wifi

from mn_wifi.link import wmediumd, adhoc

from mn_wifi.wmediumdConnector import interference

def topology(args):

"Create a network."

net = Mininet_wifi(controller=DefaultController, roads=10,

link=wmediumd, wmediumd_mode=interference)

info("*** Creating nodes\n")

for id in range(0, 10):

min_ = randint(1, 4)

max_ = randint(11, 30)

net.addCar('car%s' % (id+1), wlans=2, min_speed=min_, max_speed=max_)

rsu11 = net.addAccessPoint(

'RSU11', ssid='vanet-ssid', mode='g', position='2600,3500,0', proto='batmand', channel='1', intf='RSU11-wlan1',

ht_cap='HT40+')

rsu12 = net.addAccessPoint(

'RSU12', ssid='vanet-ssid', mode='g', position='2800,3500,0', proto='batmand', channel='6', intf='RSU12-wlan1',

ht_cap='HT40+')

rsu13 = net.addAccessPoint(

'RSU13', ssid='vanet-ssid', mode='g', position='3000,3500,0', proto='batmand', channel='11', intf='RSU13-wlan1',

ht_cap='HT40+')

rsu14 = net.addAccessPoint(

'RSU14', ssid='vanet-ssid', mode='g', position='3200,3500,0', proto='batmand', channel='11', intf='RSU14-wlan1',

ht_cap='HT40+')

c1 = net.addController('c1')

# c1 = net.addController(name='c1',

# controller=RemoteController,

# ip='192.168.8.105',

# protocol='tcp',

# port=6633)

# ip='localhost',

# protocol='tcp',

# port=6653)

info("*** Configuring Propagation Model\n")

net.setPropagationModel(model="logDistance", exp=4)

info("*** Configuring wifi nodes\n")

net.configureWifiNodes()

info("*** Associating and Creating links\n")

net.addLink(rsu11, rsu12)

net.addLink(rsu11, rsu13)

net.addLink(rsu11, rsu14)

for car in net.cars:

net.addLink(car, cls=adhoc, intf='%s-wlan1' % car,

ssid='adhocNet', proto='batmand', mode='g', channel=5,

ht_cap='HT40+')

if '-p' not in args:

net.plotGraph(max_x=500, max_y=500)

net.startMobility(time=0)

info("*** Starting network\n")

net.build()

c1.start()

rsu11.start([c1])

rsu12.start([c1])

rsu13.start([c1])

rsu14.start([c1])

for id, car in enumerate(net.cars):

car.setIP('192.168.0.%s/24' % (id+1), intf='%s-wlan0' % car)

car.setIP('192.168.1.%s/24' % (id+1), intf='%s-wlan1' % car)

for id, ap in enumerate(net.aps):

ap.setIP('192.168.1.%s/24' % (id+11), intf='%s-wlan1' % ap)

ap.setIP('10.0.1.%s/24' % (id+11), intf='%s-eth2' % ap)

"""net.cars.__getitem__(1).cmd('iperf -s -u -i 1 >> udpdownsta1exp.txt &')

net.cars.__getitem__(2).cmd('iperf -s -u -i 1 >> udpdownsta2exp.txt &')

net.cars.__getitem__(1).cmd(' iperf -c %s' %

net.cars.__getitem__(1).IP()+' -u -t 20 -b 100M >> res1.txt &')

net.cars.__getitem__(1).cmd(' iperf -c %s' %

net.cars.__getitem__(2).IP()+' -u -t 20 -b 100M >> res2.txt &')"""

info("*** Running CLI\n")

CLI(net)

info("*** Stopping network\n")

net.stop()

if __name__ == '__main__':

# setLogLevel('debug')

topology(sys.argv)

this is the result of the command 'dump':

mininet-wifi> dump
<Controller c1: 127.0.0.1:6653 pid=353804>
<Car car1: car1-wlan0:192.168.0.1,car1-wlan1:192.168.1.1 pid=353766>
<Car car2: car2-wlan0:192.168.0.2,car2-wlan1:192.168.1.2 pid=353768>
<Car car3: car3-wlan0:192.168.0.3,car3-wlan1:192.168.1.3 pid=353770>
<Car car4: car4-wlan0:192.168.0.4,car4-wlan1:192.168.1.4 pid=353772>
<Car car5: car5-wlan0:192.168.0.5,car5-wlan1:192.168.1.5 pid=353774>
<Car car6: car6-wlan0:192.168.0.6,car6-wlan1:192.168.1.6 pid=353776>
<Car car7: car7-wlan0:192.168.0.7,car7-wlan1:192.168.1.7 pid=353778>
<Car car8: car8-wlan0:192.168.0.8,car8-wlan1:192.168.1.8 pid=353780>
<Car car9: car9-wlan0:192.168.0.9,car9-wlan1:192.168.1.9 pid=353782>
<Car car10: car10-wlan0:192.168.0.10,car10-wlan1:192.168.1.10 pid=353784>
<OVSAP RSU11: lo:127.0.0.1,RSU11-wlan1:None,RSU11-eth2:10.0.1.11,RSU11-eth3:None,RSU11-eth4:None pid=353789>
<OVSAP RSU12: lo:127.0.0.1,RSU12-wlan1:None,RSU12-eth2:10.0.1.12 pid=353792>
<OVSAP RSU13: lo:127.0.0.1,RSU13-wlan1:None,RSU13-eth2:10.0.1.13 pid=353795>
<OVSAP RSU14: lo:127.0.0.1,RSU14-wlan1:None,RSU14-eth2:10.0.1.14 pid=353798>

this is the result of the command 'RSU12 ifconfig' :

mininet-wifi> RSU12 ifconfig
RSU11-eth2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 10.0.1.11 netmask 255.255.255.0 broadcast 10.0.1.255
        ether 7a:23:0b:b9:3b:e8 txqueuelen 1000 (Ethernet)
        RX packets 24 bytes 2897 (2.8 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 83 bytes 8911 (8.9 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU11-eth3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        ether b2:05:e2:09:60:c8 txqueuelen 1000 (Ethernet)
        RX packets 28 bytes 2977 (2.9 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 61 bytes 6054 (6.0 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU11-eth4: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        ether 96:a2:8c:9d:6c:0f txqueuelen 1000 (Ethernet)
        RX packets 28 bytes 2977 (2.9 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 61 bytes 6054 (6.0 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU11-wlan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 192.168.1.11 netmask 255.255.255.0 broadcast 192.168.1.255
        ether 02:00:00:00:14:00 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 209 bytes 21327 (21.3 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU12-eth2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 10.0.1.12 netmask 255.255.255.0 broadcast 10.0.1.255
        ether 32:cc:3d:27:53:fe txqueuelen 1000 (Ethernet)
        RX packets 83 bytes 8911 (8.9 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 24 bytes 2897 (2.8 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU12-wlan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 192.168.1.12 netmask 255.255.255.0 broadcast 192.168.1.255
        ether 02:00:00:00:15:00 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 106 bytes 13828 (13.8 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU13-eth2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 10.0.1.13 netmask 255.255.255.0 broadcast 10.0.1.255
        ether 2a:02:3d:73:1f:58 txqueuelen 1000 (Ethernet)
        RX packets 61 bytes 6054 (6.0 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 28 bytes 2977 (2.9 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU13-wlan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 192.168.1.13 netmask 255.255.255.0 broadcast 192.168.1.255
        ether 02:00:00:00:16:00 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 89 bytes 11550 (11.5 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU14-eth2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 10.0.1.14 netmask 255.255.255.0 broadcast 10.0.1.255
        ether ce:d3:e9:b0:73:f3 txqueuelen 1000 (Ethernet)
        RX packets 61 bytes 6054 (6.0 KB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 28 bytes 2977 (2.9 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RSU14-wlan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 192.168.1.14 netmask 255.255.255.0 broadcast 192.168.1.255
        ether 02:00:00:00:17:00 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 91 bytes 12031 (12.0 KB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp1s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
        ether c8:5b:76:7e:6d:cb txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
        inet 127.0.0.1 netmask 255.0.0.0
        loop txqueuelen 1000 (Local Loopback)
        RX packets 212349 bytes 46844588 (46.8 MB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 212349 bytes 46844588 (46.8 MB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 192.168.1.192 netmask 255.255.255.0 broadcast 192.168.1.255
        inet6 fe80::9022:aa6d:abbe:6ca1 prefixlen 64 scopeid 0x20<link>
        ether 78:45:61:ea:4b:a7 txqueuelen 1000 (Ethernet)
        RX packets 75999 bytes 80363354 (80.3 MB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 53761 bytes 8234804 (8.2 MB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

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