I cloned my VitualBox which is running Win-XP. My orignal VBOX and the cloned one both are running on the same IPAdr. This is the strangest thing i have ever seen. How is this possible.
How can the network assign the same IPAdr to both VBOX?
I have cloned before but didn't have this issue... Can it be something to do with macAdr?
You might be using NAT network mode. Check it or use the bridged mode if you want to have them separately.
In it's not the case, please provide more information, so we can help you!
UPDATE: it's bridged mode, so the problem is elsewhere. With a screenshot of the network configuration screen would be easier to find some reasons...
Related
First of all I want to ask is this even possible?
(I feel like it is because its connecting through TCP/IP network socket)
Im trying to setup my PvD so I can see the frames of a physx scene that is being run on another computer.
Ive tried using my own local ip-address and the same port:5425
(thats the port the physx docs recommend you use).
When you create a socket for the PvD it wants a ip-address, port and a timoutInMs.
PxPvdTransport* transport = PxDefaultPvdSocketTransportCreate("LOCAL_IP", 5425, 10);
(Ive changed the timeout to 10000(10sec) and it still wont connect)
Could it be that my timeout is to small, im using the wrong ip-address or the wrong port?
Here you also have the docs for PvD https://docs.nvidia.com/gameworks/content/gameworkslibrary/physx/guide/3.3.4/Manual/VisualDebugger.html
Ive read it all and they dont really specifiy if its possible to do what I want to do. Or im just bad at reading if I missed some curcial information from that doc
Im not sure ive covered everything that people need to know about my question but if you need more information tell me and I'lle gladly provide more.
So I found out what the problem was, I needed to open the port on my firewall.
I'lle keep this question if someone else encouters the same problem.
I feel like this should be rather easy, but it continues to vex me, so here it is. I've been trying to find a simple solution to iterate through the available UART serial ports on linux (I'm running the most recent version of Manjaro Linux) and then printing these to the console. Yet, all of the solutions I've found thus far have been incredibly convoluted or they end up throwing a bunch of errors that I can'at figure out when I test them.
So, I've resorted to coming back here to see if anybody else has any ideas. On Windows, there is a GetPortNames() of Windows' System::IO::Ports, maybe a similar API call would be the most ideal.
Update:
So after receiving an answer and using that information to learn a bit more about interacting with serial ports on linux, I eventually ran across a good way to accomplish this effect of iterating through the available ports. It's not quite as simple as a one-line command, but it works so it's fine with me. I found this method of iteration/sorting through the /sys/class/tty directory as an answer to another question (the author of the code that I used is named Søren Holm), and you can look at that here.
Two simple possibilities:
Serial ports on linux are character device files, you can see them on /dev/ttyS*. Serial ports created by an usb device are in /dev/ttyUSB*. This reduces your problem to a dirent iteration.
There is also a thing named sysfs, it is essentially a runtime, non-persistant, kernel-internal registry which is exported to the user space via a virtual filesystem. Normally it is mounted below /sys. Below /sys/bus/serio/devices you can find the devices.
I need to simulate plug/unplug for USB device in C++ under Windows environment. I know the existence of this IOCTL
http://msdn.microsoft.com/en-us/library/windows/hardware/ff537243(v=vs.85).aspx
(IOCTL_INTERNAL_USB_CYCLE_PORT) which indeed is what I am looking for, but I don't know how to use.
Is there anyone which can tell me who I can find an example or share some lines of code in order to help me, please!
Thanks in advance.
Since you are in User Mode land and using C++ I'd recommend looking at the devcon sample. Out of the box you can use it on the command line to issue PnP or disable/enable requests to devices. The source code is also available, so you can use that as a start to get this functionality added to your environment.
My main goal is to create an advanced program for manipulating the packets that route within my network via the router. Let my program have total control over the router. Set the download/upload speeds to my inputs, apply the effect to certain devices within in my network. Block upload or download traffic. Set second delay for either the upload or download speed. Specify % of loss packets, and the list goes on.
The problem is that I don't know where to start. I know most languages at the very most basic level. I'd like to create this program in either C, C++ or C# but I don't know yet. What else do I need to know before creating this program? Winsock or something? Winpcap APIs?
This goal is my motivation to learn programming to the extreme, and I'm really looking forward to it.
Thanks in advance!
Hmmm I guess you would want to look at pcap(?):
pcap
Check out:
http://beej.us/guide/bgnet/html/multi/index.html
'Beej's Guide to Network Programming
Using Internet Sockets'
All you could possibly need to know about programming sockets for capture and manipulation.
If I were you I'd write it in C, I'm writing a similar project at the moment in C++ and it's hell but too late to stop and start again.
Hope that helps.
Bear in mind that you either need a router that you can re-program or you need to use your PC as a router to do this.
Either way you want to look into how IPTABLES are implemented.
I've never seen Desktop Windows used as a router only Windows Server, though it may still be possible. libpcap is for packet capture, but not interception as I understand it. Programs like Wireshark use it to monitor copies of packets, but not to modify them. If you want to attempt this, my impression has been that there is a lot more documentation and tools for doing something like this with NetFilter/IPTables on Linux. You can even install something like OpenWRT on a compatible router and get a small, cheap Linux router, though having Desktop Linux will probably help for development. The NetFilter QUEUE library can be used with some IPTables firewall rules to redirects specific (or all) packets to a regular user program. That program can then read the packet and modify it or even request it to be dropped.
http://www.netfilter.org/projects/libnetfilter_queue/
If you want to manipulate network traffic on a Windows machine (as you mentioned), you will need some extra software. This operating system wont give you the full control over itself, which is fine for some reasons.
I think what you want to do, should be done with either winpcap or win10pcap if you are using Win10. These packages contains a windows driver and the libpcap user space library.
I'm playing around with retrieving the MAC address from the NIC - there are a variety of ways to get it, this article covers the most common:
http://www.codeguru.com/Cpp/I-N/network/networkinformation/article.php/c5451
I'm currently using the GetAdaptersInfo method, which seems the most bulletproof, but if the MAC address has been set via the registry:
http://www.mydigitallife.info/2008/06/30/how-to-change-or-spoof-mac-address-in-windows-xp-vista-server-20032008-mac-os-x-unix-and-linux/
Then it reports the MAC address that it has been changed to. The only way I've found to actually get the true MAC is to remove the registry entry, restart the NIC, get the MAC via GetAdaptersInfo, then replace the registry entry, and restart the NIC. While it gets the job done, it's hardly transparent to the user.
Is there any other methods that anyone is familiar with, that will return the hardware MAC regardless of what the registry is set to? Ideally I'd like a solution that works on XP on up.
Thanks in advance!
My guess is that in the linked CodeGuru article, the Miniport solution is likely to overcome the problem you describe, albeit painful to implement. The reason I think this is that I have used the GetAdaptersInfo solution myself in the past, and noticed that the MAC address will change without reboot when an adapter is added, e.g. a Bluetooth adapter providing PAN services.
Perhaps rather than rebooting after changing the registry setting, you could try stopping and restarting the relevent network services. You could easily check this manually prior to looking for a programmatic solution.
(n.b. the above is all guess work. If you try it and it works, perhaps add a post for those trying to do the same in future).
Parse the output of ipconfig /all
You can use WMI to enumerate the Win32_NetworkAdapter instances and look at the MACAddress property. The main issue with this technique is finding the appropriate adapter instance if you have multiple active adapters installed, e.g. on a laptop which also has a wireless connection.