什么情况下dhcp服务器会给客户端别人已经在使用的IP呢？

2007-07-13 09:37:37 85 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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部署DHCP服务器，IP地址分配 DHCP客户端获取到的IP地址无法访问网络，可以检查subnet、range、option、server等DHCP参数的配置和网络环境的连通性，检查DHCP服务器是否已经正确配置DNS服务器，如dhcpd.conf文件中是否正确配置了DNS服务器地址。4. 验证DHCP服务器是否工作正常，可以在客户端机器上使用命令dhclient eth0来尝试获取IP地址，如果步骤操作正确，则客户端计算机会成功获取到本DHCP服务器分配的IP地址参数。检查DHCP服务器是否已经启动，可以使用ps命令查看进程是否存在。阅读详情

什么情况下dhcp服务器会给客户端别人已经在使用的IP呢？
我的dhcp服务器（运行在linux上）日志如下：

Jul 12 17:43:14 png3-6 dhcpd: DHCPDISCOVER from 00:14:c2:e7:5e:01 via eth1
Jul 12 17:43:14 png3-6 dhcpd: DHCPOFFER on 10.255.255.164 to 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:14 png3-6 dhcpd: DHCPREQUEST for 10.255.255.164 (10.255.1.1) from 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:14 png3-6 dhcpd: DHCPACK on 10.255.255.164 to 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:14 png3-6 dhcpd: DHCPDECLINE of 10.255.255.164 from 00:14:c2:e7:5e:01 (haki via eth1: not found
Jul 12 17:43:24 png3-6 dhcpd: DHCPDISCOVER from 00:14:c2:e7:5e:01 via eth1
Jul 12 17:43:24 png3-6 dhcpd: DHCPOFFER on 10.255.254.139 to 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:24 png3-6 dhcpd: DHCPREQUEST for 10.255.254.139 (10.255.1.1) from 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:24 png3-6 dhcpd: DHCPACK on 10.255.254.139 to 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:24 png3-6 dhcpd: DHCPDECLINE of 10.255.254.139 from 00:14:c2:e7:5e:01 (haki via eth1: not found
Jul 12 17:43:34 png3-6 dhcpd: DHCPDISCOVER from 00:14:c2:e7:5e:01 via eth1
Jul 12 17:43:34 png3-6 dhcpd: DHCPOFFER on 10.255.254.38 to 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:34 png3-6 dhcpd: DHCPREQUEST for 10.255.254.38 (10.255.1.1) from 00:14:c2:e7:5e:01 (haki via eth1
Jul 12 17:43:34 png3-6 dhcpd: DHCPACK on 10.255.254.38 to 00:14:c2:e7:5e:01 (haki8) via eth1
Jul 12 17:43:34 png3-6 dhcpd: DHCPDECLINE of 10.255.254.38 from 00:14:c2:e7:5e:01 (haki8) via eth1: not found

如果我只是重起dhcpd，没有用。
如果我重起整个linux，问题就没有了。不过过大概一天，又会有同样的问题。

谢谢！

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