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Windows 2008 R2 DHCP-客户端更新过于频繁

tag-icon • tag-icon windows windows-server-2008 windows-server-2008-r2 dhcp
Windows 2008 R2 DHCP-客户端更新过于频繁

我们正在运行 Windows 2008 R2 DHCP 服务器。大约三周前，我们刚刚添加了新的 DHCP 服务器并删除了旧服务器。

我有一名员工在过去一周每天都报告 IP 冲突错误。我检查了 DHCP 日志，发现没有冲突。我还将冲突检测尝试次数调高到 1，以尝试避免出现问题。

我在日志中发现的唯一奇怪的是他的接口尝试更新其 IP 的次数。以下是一个例子：

30,12/19/13,17:41:34,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:41:34,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,941800471,0,,,
32,12/19/13,17:41:34,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
30,12/19/13,17:41:38,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:41:38,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,941800471,0,,,
32,12/19/13,17:41:38,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
30,12/19/13,17:41:42,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:41:42,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,941800471,0,,,
32,12/19/13,17:41:42,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
30,12/19/13,17:41:49,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:41:49,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,941800471,0,,,
32,12/19/13,17:41:49,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
30,12/19/13,17:42:07,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:42:07,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,2755917027,0,,,
32,12/19/13,17:42:07,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
30,12/19/13,17:42:10,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:42:10,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,2755917027,0,,,
32,12/19/13,17:42:10,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
30,12/19/13,17:42:17,DNS Update Request,192.168.1.109,Galen-THINK.example.com,,,0,6,,,
11,12/19/13,17:42:17,Renew,192.168.1.109,Galen-THINK.example.com,8C705257C4D2,,2755917027,0,,,
32,12/19/13,17:42:17,DNS Update Successful,192.168.1.109,Galen-THINK.example.com,,,0,6,,,

那么这可能是他看到 IP 冲突错误的原因吗？如果不是，我该如何进一步调查原因？

谢谢！

答案1

冲突可能是由于网络上的其他人将相同的 IP 硬编码到设备上造成的。

我会做一个nmap为出现问题的用户分配一个静态 IP（出于测试目的）后扫描网络。

如果您发现网络上正在使用 192.168.1.109，那么您将需要找到该设备，这将涉及通过 arp 表跟踪到交换机端口的 mac 地址。

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