1. How to obtain the MAC address of a local machine from Android:
You need to add permissions to the androidmanifest. xml file:
public String getLocalMacAddress() { WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); WifiInfo info = wifi.getConnectionInfo(); return info.getMacAddress(); }
2. How to obtain the local
This method passed the Motorola milestone test. This function is used to obtain the IP address and MAC address of the local machine. First, create a project and modify the androidmanifest. xml file to add user permissions, as shown below.
Modify/RES/layout/Main. XML as follows.
The main code is as follows (getipmac
Imports systemImports system. Diagnostics
Public class macaddressPublic Function getmac (byval IP as string) as stringDim str1 as string = string. EmptyTryDim str2 as string = string. EmptyDim info1 as processstartinfo = new processstartinfo ()Dim process1 as process = new process ()
Info1.filename = "NBTSTAT"Info1.redirectstandardinput = falseInfo1.redirectstandardoutput = trueInfo1.arguments = "-a" + IPInfo1.useshellexecute = falseProcess1 = process
In C #CodeTo call the doscommand: NBTSTAT-A 192.168.0.11
Then, extract the MAC address from the returned string.
However, you must note that this command will cache some information, which will be automatically cleared after a period of time. However, if the server administrator sets the cache on the server to a small value, the subsequent C # still calls this command, which will cause the server cache ov
Questions about MAC addresses and IP addresses that change and are not changed during transmission:Conclusion: MAC address is invariant in the same broadcast domain, it will change when it crosses broadcast domain, while IP address
Obtain the client NicMacAddress andIPAddress methods(I)
Author:CodeMessy
In progressB/SFor structured systems, we often need to obtain some client information, suchIPAndMacIn combination with identity authentication. InASP. NETMedium,To obtain the serverMacIt is easy, but you need to obtainMacThe address does take a long time. The usual practice is to callWIN32APIOr directly callNBTSTATThere are a lot of problems with this, and another method is to
Looked at many times, just to sort out my understanding of the whole communication process, the following, will continue to learn to supplement the correction:When communicating using the TCP/IP protocol family, there are three key identifying information: MAC address, IP address
Welcome Reprint! When reproduced, please indicate the source:http://blog.csdn.net/nfer_zhuang/article/details/42609733IntroductionUsage scenarios:I use the Linux server has more than one network card, sometimes need to use the script to specify the IP address of the network card or MAC address, then there are two appro
Whether the same network segment can do the same IP and MAC address,In fact, you can completely change the IP of the two computers to the same as the Mac, not only the internet but also no IP conflict. This method can not only bre
1, the local area network by querying the other IP address can map the other MAC address to the host's Apr buffer table. Map host IP addresses to MacFirst, the shared LAN host is queried through the net viewSecond: Arbitrarily choose a computer name, forcing the use of IPv4
Get IP address via LAN MAC address[[email protected]cli]# Cat tmp.shfunction Get_all_arp_info (){Ip-s-S neigh flush all >/dev/nul For IP in ' seq 2 254 'DoPing 192.168.50. $ip-c1 >/dev/
Links: https://www.zhihu.com/question/36730567/answer/83083851Source: KnowCopyright belongs to the author. Commercial reprint please contact the author for authorization, non-commercial reprint please specify the source.Multicast IP conversion to a multicast MAC address is a 32:1 mapping relationship.Multicast IP Addre
How does Mac view native IP and MAC addresses? Many users who just use Macs don't know how to view their native IP and MAC addresses. In fact, this is a little different from looking at the native IP
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