Stations in ad hoc mode can ping each other even if they are out of range about mininet-wifi

[ramonfontes]

Is wmediumd enabled? Please enable wmediumd and interference.

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Sent from my android

On 25 Aug 2017 17:33, "Xian Guo" ***@***.***> wrote: I have added stations in ad hoc mode. (No access points). And then I added a mobility model. But I discover that stations can still ping each other when they are out of range. for station in net.stations: net.addHoc(station, ssid='adhocNet', mode='g') #Xian: add the following lines for adhoc network net.plotGraph(max_x=100, max_y=100) net.propagationModel('friisPropagationLossModel', sL=2) net.seed(random.randint(0, 100)) net.startMobility(startTime=0, model='RandomWayPoint', max_x=100, max_y=100, min_v=0.5, max_v=0.8) How can I resolve this? Thank you for your help. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#103>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEnmeldPeSPgc7SD7321foSm_Ckuqsq8ks5sby-KgaJpZM4PDIcl> .

[iamxg]

Okay I will try to do that. Is this the relevant example: https://github.com/intrig-unicamp/mininet-wifi/blob/8c43db940081d35cb57bfcbad5058324a674df2d/examples/wmediumd_mobility.py?

[ramonfontes]

That code isn't about adhoc. You just have to enable wmediumd and interference in your code.

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Sent from my android

On 25 Aug 2017 17:46, "Xian Guo" ***@***.***> wrote: Okay I will try to do that. Is this the relevant example: https://github.com/intrig-unicamp/mininet-wifi/blob/ 8c43db9/examples/wmediumd_mobility.py? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#103 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEnmeh72qfjXgt9E04oXzaRfAp5bLCOcks5sbzKygaJpZM4PDIcl> .

[iamxg]

Hi Ramon,
I'd like to simulate a mobile ad hoc network. I enable wmediumd and interference. But stations can still ping each other when they are out of range. Please you help me check the code. Thanks a lot.
def topology():
"Create a network."
net = Mininet(controller=Controller, enable_wmediumd=True, enable_interference=True)
print "*** Creating nodes"
sta1 = net.addStation('sta1', mac='02:00:00:00:00:01', range='20')
sta2 = net.addStation('sta2', mac='02:00:00:00:00:02', range='20')
sta3 = net.addStation('sta3', mac='02:00:00:00:00:03', range='20')
print "*** Configuring wifi nodes"
net.configureWifiNodes()

print "*** Creating links"
net.addHoc(sta1, ssid='adhocNet', mode='g')
net.addHoc(sta2, ssid='adhocNet', mode='g')
net.addHoc(sta3, ssid='adhocNet', mode='g')

print "*** Starting network"
net.build()
net.plotGraph(max_x=100, max_y=100)
net.propagationModel('friisPropagationLossModel', sL=2)
net.seed(random.randint(0, 100))
net.startMobility(startTime=0, model='RandomWayPoint', max_x=100, max_y=100, min_v=0.5, max_v=0.8)

print "*** Running CLI"
CLI(net)

print "*** Stopping network"
net.stop()

[iamxg]

[ramonfontes]

Hi, Please don't set the range when wmediumd is enabled. It's calculated by the propagation model. Also, you have to set the propagation model just before net.configureWifiNodes(). 2017-08-26 18:15 GMT-03:00 Xian Guo <[email protected]>:

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Hi Ramon, I'd like to simulate a mobile ad hoc network. I enable wmediumd and interference. But stations can still ping each other when they are out of range. Please you help me check the code. Thanks a lot. def topology(): "Create a network." net = Mininet(controller=Controller, enable_wmediumd=True, enable_interference=True) print "*** Creating nodes" sta1 = net.addStation('sta1', mac='02:00:00:00:00:01', range='20') sta2 = net.addStation('sta2', mac='02:00:00:00:00:02', range='20') sta3 = net.addStation('sta3', mac='02:00:00:00:00:03', range='20') print "*** Configuring wifi nodes" net.configureWifiNodes() print "*** Creating links" net.addHoc(sta1, ssid='adhocNet', mode='g') net.addHoc(sta2, ssid='adhocNet', mode='g') net.addHoc(sta3, ssid='adhocNet', mode='g') print "*** Starting network" net.build() net.plotGraph(max_x=100, max_y=100) net.propagationModel('friisPropagationLossModel', sL=2) net.seed(random.randint(0, 100)) net.startMobility(startTime=0, model='RandomWayPoint', max_x=100, max_y=100, min_v=0.5, max_v=0.8) print "*** Running CLI" CLI(net) print "*** Stopping network" net.stop() — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#103 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEnmetVcj8ZJ1AXJKtdC16UsR_daRGlwks5scIrYgaJpZM4PDIcl> .

[iamxg]

def topology():
"Create a network."
net = Mininet(controller=Controller, enable_wmediumd=True, enable_interference=True)
print "*** Creating nodes"
sta1 = net.addStation('sta1', mac='02:00:00:00:00:01')
sta2 = net.addStation('sta2', mac='02:00:00:00:00:02')
sta3 = net.addStation('sta3', mac='02:00:00:00:00:03')
print "*** Configuring wifi nodes"
net.propagationModel('friisPropagationLossModel', sL=2)
net.configureWifiNodes()

print "*** Creating links"
net.addHoc(sta1, ssid='adhocNet', mode='g')
net.addHoc(sta2, ssid='adhocNet', mode='g')
net.addHoc(sta3, ssid='adhocNet', mode='g')

print "*** Starting network"
net.build()
net.plotGraph(max_x=100, max_y=100)
net.seed(random.randint(0, 100))
net.startMobility(startTime=0, model='RandomWayPoint', max_x=100, max_y=100, min_v=0.5, max_v=0.8)

print "*** Running CLI"
CLI(net)

print "*** Stopping network"
net.stop()

[iamxg]

I modify the codes, but the result is same.

[ramonfontes]

Please try logdistance instead of friss (e.g. net.propagationModel("logDistancePropagationLossModel", exp=4.5)). I just found a problem with friss. 2017-08-26 18:26 GMT-03:00 Xian Guo <[email protected]>:

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I modify the codes, but the result is same. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#103 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEnmegbUTXRP69VlNIY_LFXiI8bpv0RFks5scI2UgaJpZM4PDIcl> .

[iamxg]

do this problem is relative with the propagation model? The running result is expected when I replaced the propagation model.

net.propagationModel("logDistancePropagationLossModel", exp=5)

[iamxg]

Ok, Thank you very much for your hard work!

[iamxg]

Hi Ramon,
Good afternoon!
In ad hoc mode, will the middle nodes automatically relay the received packet? Do it need to configure?

[ramonfontes]

No. You have to configure a routing protocol. Whatever you want (even static routing).

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Sent from my android

On 28 Aug 2017 17:59, "Xian Guo" ***@***.***> wrote: Hi Ramon, Good afternoon! In ad hoc mode, will the middle nodes automatically relay the received packet? Do it need to configure? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#103 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEnmeg6Lqbvw3D56trxNT2zBM5o35A2Dks5scypJgaJpZM4PDIcl> .

[iamxg]

Ok, thank you for replying timely. I will try to do it.

[ramonfontes]

You can find further information in the mailing list and you can use it for doubts/questions.

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Sent from my android

On 28 Aug 2017 18:06, "Xian Guo" ***@***.***> wrote: Ok, thank you for replying timely. I will try to do it. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#103 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEnmeqT0Fyf_WWWLZaRV3PmLZOHM9B7Sks5scyvtgaJpZM4PDIcl> .

[iamxg]

Ok, Thank you!

[ramonfontes]

Which troubleshooting steps did you try? Can you elaborate your question with technical details in terms of network aspects? By the way, you are working with adhoc and without wmediumd? Did you calibrate the propagation model in order to meet the signal range requirements?

Please help us help you and provide as much information as you can. Unfortunately we cannot reproduce all the codes we receive.

[Varadarajreddy]

Actually, i am a student and I am absolutely new to new mininet. To answer your question I just tried with ping command and traceroute(however it did not work in mininet it was showing that command was not found) and I tried iwconfig(When I run this command it showed that ESSID: off/any, access point: is not associated.

mininet-wifi> STA1 iwconfig
STA1-wlan0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on

lo no wireless extensions.

[Varadarajreddy]

[Varadarajreddy]

I have not configured the Adhoc nodes here. I just configured the mobile nodes.

[ramonfontes]

Are you new computer networking too?? You may want to know that iwconfig does not work with adhoc. Anyway, you must enable wmediumd and make sure that the signal range you have set work well with the propagation model.

[ramonfontes]

What??? What is the relationship between your question and this thread???

[Varadarajreddy]

oh, I am very sorry actually I should have raised a new question instead of posting in this thread. I sincerely apologise for any inconvenience.