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intrig-unicamp / mininet-wifi

Emulator for Software-Defined Wireless Networks
https://mn-wifi.readthedocs.io/
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Cannot find device "hwsim0" #404

Closed amirmirzaeinia closed 3 years ago

amirmirzaeinia commented 3 years ago

Hello, I am trying to capture some traces on wireshark but I get error message as hwsim0: ERROR while getting interface flags: No such device I was able to run and capture for the first time and then stop working. running the "hcxdumptool -I" gives me the following. wlan interfaces: 34c93d00e97a wlp4s0 (iwlwifi) warning: NetworkManager is running with pid 776 warning: wpa_supplicant is running with pid 800 any help on how to fix this issue? thank you

ramonfontes commented 3 years ago

Honestly, I don't know why some prefer to use hwsim0 instead of creating a monitor interface for a particular node. Well, you probably didn't bring the network interface up.

amirmirzaeinia commented 3 years ago

Ramon , thank you for your prompt reply. I can capture on server node and guess that is fine in my scenarios. I guess the main reason for hwsim0 is the following page
https://hackmd.io/@pmanzoni/rkMF11rIH have a look . thank you

ramonfontes commented 3 years ago

Sorry, I didn't get you. Can you clarify that please?

amirmirzaeinia commented 3 years ago

Ramon there is another issues with high number of requests. I have client server in my mininet wifi and trying to test a wide range of experiments. But it stuck after 400 different try of different request. I guess at this point it reaches to some hardware limits (RAM, etc). Is there any way to fix this issues? thank you

ramonfontes commented 3 years ago

Dear,

You have created an issue for hwsim0. Could please answer the question I made? Also, what was the problem and how did you get it solved??

By the way, I haven't comprehend the last question and I found no relationship with the issue you have opened.

amirmirzaeinia commented 3 years ago

Sorry, I didn't get you. Can you clarify that please?

Ramon I mean, if you just google "mininet wifi wireshark" the first page that comes up in my region is, https://hackmd.io/@pmanzoni/rkMF11rIH , which is focused on hwsim0. that is the reason I was confused to use hwsim0 rather than creating monitor interface for my server. now that I started capturing the trace on my server node , I see another problem to extend number of flow experiments. I just have two mobile stations that are connecting to a host server through AP and requesting for services but after ~450 requests it just stuck and I have to ^C to stop the process. any solution to increase the capabilities? thank you

ramonfontes commented 3 years ago

Please use the mailing list for such question and provide as much information as you can.