blocks|key|1896080|text|告诉我们网络地址而不告诉我们子网掩码就像告诉我们你家号码是12345，但不告诉我们街道名称。我假设子网掩码是255.255.255.0。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1896081|如果目标计算机驻留在不同的网络中，则无法直接获取目标计算机的MAC地址，原因如下：|1896082|本地机器不会对远程机器进行ARP。|1896083|本地路由器不会对远程机器进行ARP。|1896084|远程路由器将为远程机器进行ARP。远程机器将响应ARP查询，并将rewspones发送到查询器(即远程路由器)，在那里响应将停止。|1896085|如果需要查找远程计算机的MAC地址，则需要访问远程路由器上的ARP缓存。|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|P|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Q|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|R|8|@]|9|@]|A|$]]]|L|$]]

Telling us the network address without telling us the subnet mask is like telling us your house number is 12345 but not telling us the street name. I'll just assume that the subnet mask is 255.255.255.0.

You can't directly get the MAC address of the target machine if it resides in a different network for the following reasons:

A. The local machine will not ARP for the remote machine.

B. The local router will not ARP for the remote machine.

C. The remote router will ARP for the remote machine. The remote machine will respond to the ARP query and will send the rewspones to the querier, which is the remote router, where the response will stop.

If you need to find the MAC address of the remote machine you'll need access to the ARP cache on the remote router.

blocks|key|2932494|text|相同子网的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2932495|：|header-two|2932496|arp将显示您机器的arp表，其中将包括与其通信的客户端的MAC地址。所以，ping，然后arp，以确保您从所需的客户端获得一个MAC地址。|offset|length|style|CODE|2932497|(使用arp+/?在命令上显示帮助/使用)|2932498|用于不同子网的|2932499|2932500|getmac+/s+[ip]|2932501|(使用RPC，最好是Windows，并且需要目标计算机上的权限，因此只有在企业环境中才真正有用。)|2932502|编辑：(想想看，在Windows环境下，您也可以尝试使用nbtstat命令。可能工作，也可能不工作，取决于网络设置和信任，但它肯定可以从不同的子网中提取MAC地址。)|entityMap^0|0|0|0|3|12|4|19|3|0|3|6|0|0|0|0|E|0|0|S|7^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|Y|8|@$G|Z|H|10|I|J]|$G|11|H|12|I|J]|$G|13|H|14|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|15|8|@$G|16|H|17|I|J]]|9|@]|A|$]]|$1|M|3|N|5|6|7|18|8|@]|9|@]|A|$]]|$1|O|3|C|5|D|7|19|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1A|8|@$G|1B|H|1C|I|J]]|9|@]|A|$]]|$1|R|3|S|5|6|7|1D|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1E|8|@$G|1F|H|1G|I|J]]|9|@]|A|$]]]|V|$]]

<h2>For the same subnet:</h2>

<code>arp</code> will display your machine's arp table, which will include the MAC address of clients it's communicated with. So, <code>ping</code>, then <code>arp</code> to make sure you get a MAC address from the desired client.

(Use <code>arp /?</code> for the help/usage display on the command)

<h2>For a different subnet:</h2>

<code>getmac /s [ip]</code>

(Uses RPC, so better be Windows and need permissions on the target computer, so really only useful in an enterprise environment.)

EDIT : (Come to think of it, you might try the <code>nbtstat</code> command as well, given Windows. May or may not work, depending on the networking settings and configs, but it certainly can pull MAC addresses from different subnets.)

blocks|key|2932570|text|有nmap窗口，您可以从namp网站下载。只需查找windows版本，它甚至附带一个GUI。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2932571|对于C#，您可以使用SendARP()。|offset|length|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/windows/desktop/aa366358%2528v=vs.85%2529.aspx^0|0|A|9|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]]|F|$G|$5|H|I|J|A|$K|L]]]]

There is nmap for windows, you can download from namp site. Just look for the windows version, it even come with a GUI.

For C#, you can use <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/aa366358%28v=vs.85%29.aspx" rel="nofollow noreferrer">SendARP()</a>.

blocks|key|1896136|text|假设您知道目标是Windows系统，我将使用WMI+(+Windows实现)来完成这一任务。这里对于VB.Net来说也是同样的问题，它可以很容易地转换为VC或C#。如链接所示，一定要导入System.Management和System.Management.Instrumentation名称空间。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1896137|Dim+theManagementScope+as+new+ManagementScope("\\"+&+ComputerName+&+"\root\cimv2")
Dim+theQueryString+as+new+string+=+"SELECT+*+FROM+Win32_NetworkAdapterConfiguration+WHERE+IPEnabled+=+1"

Dim+theObjectQuery+as+new+ObjectQuery(theQueryString)

Dim+theSearcher+as+new+ManagementObjectSearcher(theManagementScope,+theObjectQuery)
Dim+theResultsCollection+as+ManagementObjectCollection+=+theSearcher.Get()

for+each+currentResult+as+ManagementObject+in+theResultsCollection
+++MessageBox.Show(currentResult("MacAddress").ToString())
next+|code-block|syntax|javascript|1896138|它也可能得到来自DHCP服务器的信息.与DhcpEnumSubnetClients，DhcpEnumSubnetClientsV4或DhcpEnumSubnetClientsV5。但是，不确定您需要什么样的权限来运行它，或者它是否必须从DHCP服务器上运行。文档不是很清楚。|entityMap|0|LINK|mutability|MUTABLE|url|http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/bd2403a0-6eab-4c72-951d-1ef74e2bbab1/|1|https://stackoverflow.com/questions/1781869/get-mac-address-from-ip-using-dhcp|2|http://msdn.microsoft.com/en-us/library/aa363284%2528v=vs.85%2529.aspx^0|2L|H|33|X|1A|2|0|0|0|6|D|1|3L|2|2^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@$9|12|A|13|1|14]]|E|$]]|$1|F|3|G|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|16|8|@]|D|@$9|17|A|18|1|19]|$9|1A|A|1B|1|1C]]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S]]|T|$5|O|P|Q|E|$R|U]]|V|$5|O|P|Q|E|$R|W]]]]

Assuming you know that the target is a Windows system, I would use WMI (the Windows CIM implementation) to accomplish this. <a href="http://social.msdn.microsoft.com/Forums/en-US/Vsexpressvb/thread/bd2403a0-6eab-4c72-951d-1ef74e2bbab1/" rel="nofollow noreferrer">Here</a> is the same question answered for VB.Net, which is easy enough to translate to VC or C#. As the link says, be sure to import the <code>System.Management</code> and <code>System.Management.Instrumentation</code> namespaces.

<pre><code>Dim theManagementScope as new ManagementScope("\\" &amp; ComputerName &amp; "\root\cimv2")
Dim theQueryString as new string = "SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 1"

Dim theObjectQuery as new ObjectQuery(theQueryString)

Dim theSearcher as new ManagementObjectSearcher(theManagementScope, theObjectQuery)
Dim theResultsCollection as ManagementObjectCollection = theSearcher.Get()

for each currentResult as ManagementObject in theResultsCollection
 MessageBox.Show(currentResult("MacAddress").ToString())
next 
</code></pre>

It may also be possible to get <a href="https://stackoverflow.com/questions/1781869/get-mac-address-from-ip-using-dhcp">the information from the DHCP server</a> with DhcpEnumSubnetClients, DhcpEnumSubnetClientsV4 or DhcpEnumSubnetClientsV5. Not sure what kind of permissions you need to run that or if it has to be run from the DHCP server, though. <a href="http://msdn.microsoft.com/en-us/library/aa363284%28v=vs.85%29.aspx" rel="nofollow noreferrer">Docs</a> aren't very clear.

My network segment is <code>192.168.0.*</code>, the target network segment is <code>192.168.1.*</code>, and I can ping it. 

I want to get the target's (e.g., 192.168.1.132's) MAC address in my program (C# or VC). 

I know I can use nmap to scan the network in Linux, but how would I go about doing it in Windows?
The subnet mask is 255.255.255.0.

Edit:
Maybe nmap can not get mac address for different subnets too.

How to get a different network's segment IP and MAC in Windows

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我的网段是192.168.0.*，目标网段是192.168.1.*，我可以点击它。我想在我的程序(C#或VC)中得到目标的MAC地址(例如，192.168.1.132's)。我知道我可以使用nmap来扫描Linux中的网络，但是如何在Windows中实现呢？子网掩码为255.255.255.0。编辑:也许nmap也无法获得不同子网的mac地址。

问如何在Windows下获得不同的网络段IP和MAC
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