I am trying to create a wifi direct p2p Group owner using wpa_supplicant and wpa_cli. Once the group is create with p2p_group_add, how can we connect legacy wifi devices to the GO? I see the GO in Android mobile search, however I am not able to detect/find GO in legacy laptop with just wifi support. May I know if any configurations need to be done for supporting legacy devices like security type etc. Please suggest.
An autonomous GO should be detected by any legacy wifi device - no special configuration is necessary. The GO should be beaconing and responding to any probe requests, both of which allow a legacy wifi system to detect it (it will just ignore the special P2P IE).
I just tried the same scenario and both my Android phone and my Windows 7 laptop could see the GO running on my Linux laptop.
As your Android phone can see the GO then it is obviously responding to probe requests, so the fact your Windows machine cannot see it is likely to be an issue with the specific netcard used (either in your wpa_supplicant machine, or your Windows machine).
Some further debugging may be necessary to find the root cause, for example using wireshark, and if possible either upgrading the wifi netcard driver on your Windows machine, or swapping it out with a different vendor.
Related
I'm building a PWA with Nuxt.js that uses the Web Serial API to communicate with our proprietary hardware. It works as expected (i.e. the port will be available without user action the next time you load the web app unless the browser security is reset) on Windows 10/11 and macOS devices, but the device this application will be running on is a Raspberry Pi 4 running the latest stable Rasbian release. On the only two browsers I've found that can run on the Raspberry Pi and support the Web Serial API are Chromium and Vivaldi. In both of those browser, there is an issue remembering which port(s) the user has already allowed access to.
In Chromium, even a page refresh will cause the port permissions to reset, requiring the user grant access to the serial port again. In Vivaldi, the permissions can survive a page refresh, but restarting to browser will cause it to forget any prior port authorizations.
I have not been able to find any option to whitelist websites in the browser settings the way you can for some other security/privacy options, like you can with things like website clipboard access, nor any way to disable the security feature altogether.
This will be running on custom hardware that ships with the software, so there are no limitations to what can be modified to resolve or work around this. The device is touchscreen only, and the app will be running in a fullscreen kiosk mode at boot. There just needs to be some way to prevent the user from needing to select a port like /dev/s0 and grant the web app access to it every single time they turn the device on.
I am having some issues with sockets in UWP.
I'm trying to test some simple socket communications (stripped down version of the MSDN example) between a mobile and a desktop on the same LAN subnet. I am developing in a VM (on a separate desktop) and can deploy to the VM and mobile. In that case connections work fine.
When I create an app package and install it on the desktop, I cannot connect.
I have windows firewall on the desktop completely off. The VM is set to have a separate IP on the network. I have checked all IPs I'm using are correct.
I am getting the typical: A connection attempt failed because the connected party did not properly respond after a period of time
This is driving me crazy, if anyone has any helpful advice that would be much appreciated!
edit: To clarify the above.
My app has both both client and server roles (can connect to a listener, and is also listening itself).
App (on Mobile) --> App (on VM, deployed from VS) - this works fine, Mobile can connect to VM no problem.
App (on Mobile) --> App (on Desktop, installed from appx) - Mobile unable to connect to Desktop. Firewall on desktop disabled. Task Manager shows .exe listening on the correct port.
Thanks, Inci
Found a solution to this - it appears connections over LAN need to have the Internet(Client & Server) capability selected.
I am most certainly connecting over my local network (specifically 192.168.0.15 (mobile) to .21 (desktop). It seems that when deploying with VS the app doesn't need the Internet capability.
If there is a more 'correct' solution I'll amend this.
I am interfacing with some external hardware (can't disclose much details on hardware) and I am using Ethernet cable to talk to external hardware boards. I have windows 7 on my machine. In between the external hardware and my PC, I have a small ethernet hub that communicates with multiple circuit boards of my external hardware.
Also, in order to get internet connection on my PC, I am using a USB2Ethernet adapter which provides me the internet connectivity.
The problem I am having is that whenever PC is connected to internet, certain test that I run on the external hardware do not work. If I dicsonnect the internet cable, then my external hardware works fine and I can do my testing.
I have disabled the USB2Ethernet through device manager and (I get no internet) and tried to run the test and my hardware doesnt work.
Has anyone encounter a problem like this and if so, what would be an ideal solution? Any help would be greately appreciated.
Please feel free to contact for any other information related to the problem if I haven't explained it well.
Does iPhone supports multicasting and broadcasting?
iPhone is the client and i have server running desktop (Mac/Windows) machine.
Since the Windows does not mandatorily supports Bonjour, I ll have to follow some other steps.
Is there any other way of detecting the machines which runs the my server running?
iPhone supports Berkley sockets (and you can access it), so you can go with it to send broadcast/multicast messages, just have to write a bunch of code for that.
I have recently been having problems with my app and I need to view the data being sent to and from my iPhone. I have read about Paros and downloaded it, but I don't know what information I need to put into paros and my iPhone to make it work. I am running a normal windows 7 installation with no current proxy server and my ISP is telus with the fiber optics package. So what do I need to install and where do I find all of the information needed to read the data being sent over the network by my iPhone using paros?
I do this a lot. I do it with a MacBook, but I'm sure you can use a similar technique to do it from windows:
Connect your PC to a hard-wired ethernet to the outside world.
Set your PC up for internet sharing. (This is the big thing that will work differently between the Mac and PC). Set up to share your Hard-wired Connection with people from your WiFi Connection. Your computer will then become a wireless access point.
Connect your iPhone to use your PC as it's WiFi network
Download and run Wireshark (Open Source - Publicly available) on your PC. Wireshark will sniff and log the network traffic.
You can then obviously set up whatever rules your would like to limit your network trace to only your iPhone.
Like I said - I do this all the time with a MacBook and it's easy and powerful!