mac-address

问题 I have been assigned the task of creating an application that takes in a MAC address and creates a DHCP reservation for that MAC address. Is there any API built into .NET to easily accomplish this? 回答1: When I was writing apps for infrastructure there was a COM library called Dhcpobjs.dll in the Windows 2000 Resource Kit. This could be dynamically loaded by a VBScript using IDispatch like so: Set DhcpMgr = CreateObject("Dhcp.Manager") Set DhcpServer = DhcpMgr.Servers.Connect("192.130.1.5") I

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . i can find the MAC address of my machine with command ipconfig /all on command prompt. Everywhere on net says physical address is MAC address. Here is the result of command ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : XXXX Primary Dns Suffix . . . . . . . : XXXX Node Type . . . . .

问题 I would like to know if there is a way of having NODE retrieve the MAC address(es) of the server on which it is running. 回答1: Node has no built-in was to access this kind of low-level data. However, you could execute ifconfig and parse its output or write a C++ extension for node that provides a function to retrieve the mac address. An even easier way is reading /sys/class/net/eth?/address : var fs = require('fs'), path = require('path'); function getMACAddresses() { var macs = {} var devs =

问题 I am using the following code to retrieve all MAC addresses for current computer: ifreq ifr; ifconf ifc; char buf[1024]; int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); if (sock == -1) { ... }; ifc.ifc_len = sizeof(buf); ifc.ifc_buf = buf; if (ioctl(sock, SIOCGIFCONF, &ifc) == -1) { ... } ifreq *it = ifc.ifc_req; const ifreq* const end = it + (ifc.ifc_len / sizeof(ifreq)); for (; it != end; ++it) { strcpy(ifr.ifr_name, it->ifr_name); if (ioctl(sock, SIOCGIFFLAGS, &ifr) == 0) { if (!(ifr

问题 I wrote the following code to get the MAC address: WifiManager wimanager = (WifiManager) getSystemService(Context.WIFI_SERVICE); String address = wimanager.getConnectionInfo().getMacAddress(); Log.d("TOKEN", address); This works perfectly on my phone, but in the Android emulator it returns null. Is this because the Android emulator doesn't have a MAC address? 回答1: It's the same as when you try getting a hold of the bluetooth stuff on the emulator. There is no MacAdress and should return null.

问题 Let's say someone is setting in a coffee shop wireless connected to the internet and they send an HTTP request to johnsveryownserver.com. Server-side, is there any way that I can determine the MAC address of the wireless access point that they are connected to? (Note that I am not interested in the MAC address of their machine.) If I can't do this with a plain old HTTP request, is there anything I can do in-browser (e.g. via javascript) in order to scan for the MAC addresses of any nearby

问题 I am writing an app for WiFi direct and it uses the mac address I transfer via another method (that works) where the client will use the ARP table to find the IP of the host, since the groupownerintent doesn't work at all on android. However I keep finding my arp table only holds my WiFi access point (for internet access), and the additional p2p interface disappears in less than 5 minutes. What is the ARP timeout for Android, and is there a way to extend it? Perhaps in my app it is not an

问题 I know how to track down an IP address, but I need to track down the MAC address of the users viewing my page. How to accomplish this? 回答1: Unless the user is on the same LAN as the webserver, you cannot do this. MAC addresses are on the ethernet layer below TCP/IP, and are not included in TCP/IP packets routed off the users local network. In some environments, it might be possible use to a client-side plugin to allow Javascript access to the MAC address, and transmit that information to the

问题 Is there any simple to use hashing algorithm to generate a 48-bit hash? I need to generate unique MAC addresses from unique input strings. There are no security issues here, just a question of mapping it to MAC address space (which is 48 bits). I thought about CRC32, which is just 32 bits and easy (and cksum is on every Linux), and use them for the lower 32 bits, but the collisions are pretty high if it is more than a few hosts. If I could get 48 bit hash, I could mask the second least

问题 I have to provide the unique identifier of my device to the server in a client app. Around StackOverflow it's been recommended commonly to use the device's mac address, since [[UIDevice currentDevice] uniqueIdentifier] property is deprecated started from iOS 5. So, when I make attempt to retrieve a device's mac address following the instructions, provided in the answers around SO, I get the same address for both my devices, which is obviously wrong: 02:00:00:00:00:00 . Checked the code many