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使用C#检测ip冲突

发布于 2024-08-07 10:40:26 字数 36 浏览 2 评论 0原文

有没有办法检测消息IP冲突？我将在我的程序的线程中使用它。

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明月夜 2024-08-14 10:40:26

如果您的问题是定位警报窗口，提示网络上存在重复的 IP，我建议您使用 API 枚举所有窗口并查看警报窗口是否存在。
您可以借助 Visual Studio 工具 Spy++ 来查看窗口的特征。

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眼角的笑意。 2024-08-14 10:40:26

这个问题不是特别精确和老旧，但无论如何我都会尝试一下，因为我想知道我能对这些问题做些什么，因为我正在编写一个应用程序来操纵 PC 上的 IP 地址，以便启动依赖于具体地址。
如果其他人有同样的问题，我建议首先尝试避免任何冲突。
问题是，设置 IP 地址是一项管理任务，只能由知道自己在做什么的人“徒手”完成。如果您通过代码设置 IP 地址，那么作为开发人员，您的任务是检查要设置的地址是否有效且网络上尚不知道。

第一：查询 DNS 是否该地址属于应用程序运行所在主机以外的主机

第二：如果 DNS 不知道该地址，则向该地址发送 Ping 请求。

请参阅：检查本地 IP 地址

    public static bool IsLocalIpAddress(string host)
    {
    try
    { 
    // get host IP addresses
    IPAddress[] hostIPs = Dns.GetHostAddresses(host);
    // get local IP addresses
    IPAddress[] localIPs = Dns.GetHostAddresses(Dns.GetHostName());

    // test if any host IP equals to any local IP or to localhost
    foreach (IPAddress hostIP in hostIPs)
    {
        // is localhost
        if (IPAddress.IsLoopback(hostIP)) return true;
            // is local address
            foreach (IPAddress localIP in localIPs)
            {
              if (hostIP.Equals(localIP)) return true;
            }
        }
    }
    catch { }
    return false;
}

如果您想“监听”冲突时，WMI 和 EventLog 是最佳选择。 EventLog 几乎是此类冲突最先出现的地方，而且很容易监控。

The question is not particular precise and old but I'll give it a go anyways because I wondered what I can do about such problems since I'm writing an app that manipulates IP addresses on the PC in order to launch applications which are dependent on specific addresses.
If anyone else has the same question I suggest trying to avoid any conflicts in the first place.
The thing is that setting an IP address is an administrative task and should only be done "free-handed" by people who know what they are doing. If you are setting IP addresses via code is is your task as a developer to check if the address to set is valid and not already known on the network.

First: Query DNS if this address belongs to a host other than the one the app runs on

Second: If DNS doesn't know about the address, send Ping requests to the address.

See: Check Local Ip Address

    public static bool IsLocalIpAddress(string host)
    {
    try
    { 
    // get host IP addresses
    IPAddress[] hostIPs = Dns.GetHostAddresses(host);
    // get local IP addresses
    IPAddress[] localIPs = Dns.GetHostAddresses(Dns.GetHostName());

    // test if any host IP equals to any local IP or to localhost
    foreach (IPAddress hostIP in hostIPs)
    {
        // is localhost
        if (IPAddress.IsLoopback(hostIP)) return true;
            // is local address
            foreach (IPAddress localIP in localIPs)
            {
              if (hostIP.Equals(localIP)) return true;
            }
        }
    }
    catch { }
    return false;
}

If you want to "listen" for conflicts, the WMI and EventLog is the way to go. The EventLog is pretty much the first place where such conflicts surface and it is easy to monitor.

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