列出连接到单个 LAN 的所有计算机的 IP 地址 [英] List the IP Address of all computers connected to a single LAN

问题描述

我正在编写一个程序，您可以在其中出于各种原因连接到 LAN 中的其他计算机.但是，与其输入多台计算机的 IP 地址(很麻烦)，我想知道是否有办法列出局域网中所有计算机的 IP 地址.我研究了一整天，还没有找到合适的.这是因为没有这种东西存在吗?提前谢谢你.

I am writing a program where you connect, for various reasons, to other computers in a LAN. However, rather than having to input the IP address for multiple computers (a pain in the butt), I was wondering if there is a way to list the IP addresses of all the computers in a LAN. I have researched all day, and as of yet have found nothing suitable. Is this because nothing of this sort exists? Thank you in advance.

看起来这篇文章获得了很多观点，我应该发布我的实际解决方案.通常，局域网中计算机 IP 地址的命名约定是相同的.例如 192.168.2.*，* 被替换为任何有效数字.我的程序检测到 IP 地址，将其显示给用户，然后询问前 3 个 IP 块.然后，它通过 ping 并等待响应按给定的 IP 命名约定顺序扫描多达 200 个.没有反应，没有电脑.一旦它知道它背后有一台计算机，它就可以做你可以用 IP 做的所有事情.

It would seem that with the many views this post is getting, I should post my actual solution. In general, the naming conventions for computers IP addresses on a LAN are the same. example being 192.168.2.*, * being replaced with any valid number. My program detects the IP address, displays it to the user, then asks for the first 3 blocks of IP. It then sequentially scans up to 200 in the given IP naming convention by pinging and waiting for a response. No response, no computer. It can do everything you can do with an IP once it knows it has a computer behind it.

推荐答案

你真的找不到比 pinging 或 arpinging 地址更可靠的方法了同一个子集.在我第一次实习的那天，我为某个软件实现了这个，最后一次我检查(公平地说是几年前)，这就是他们仍在使用这个功能的东西.我认为这意味着他们没有找到更好的东西.

You're not really going to find anything more reliable than pinging or arpinging addresses on the same subset. I implemented this for a certain piece of software back in the day on my first internship and, last time I checked (to be fair it was several years ago), that is what they were still using for this functionality. I take that to mean that they haven't found anything better.

找到这些的源代码并将它们翻译成 C# 并不难.ping, arping.或者，您只需打开命令提示符并执行 ping 然后解析结果.

It is not hard to find the source code for these and translate them to C#. ping, arping. Alternatively, you just shell out to a command prompt and execute ping and then parse the results.

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