我的DHCPconfiguration是：
dns-update-style interim; default-lease-time 86400; max-lease-time 86400; authoritative; log-facility local7; subnet 192.0.1.0 netmask 255.255.255.0 { pool { option subnet-mask 255.255.255.0; option broadcast-address 192.0.1.255; option routers 192.0.1.1; option domain-name-servers 8.8.8.8, 8.8.4.4; range 192.0.1.231 192.0.1.231; host host_1 { hardware ethernet 5C:DC:96:04:1C:CA; fixed-address 192.0.1.231; } range 192.0.1.230 192.0.1.230; host host_2 { hardware ethernet 7C:01:91:1D:29:B9; fixed-address 192.0.1.230; } range 192.0.1.229 192.0.1.229; host host_3 { hardware ethernet 6C:88:14:DD:19:D0; fixed-address 192.0.1.229; } deny unknown-clients; } pool { option subnet-mask 255.255.255.0; option broadcast-address 192.0.1.255; option routers 192.0.1.1; option domain-name-servers 8.8.8.8, 8.8.4.4; range 192.0.1.40 192.0.1.40; allow unknown-clients; } } 而我的问题是，有时某些用户，例如，与MAC“6C：88：14：DD：19：D0”得到的IP 192.0.1.230当IP 192.0.1.229 …有什么问题？
我在我的日志系统中有这些消息：
Feb 2 19:35:05 localhost dhcpd: Abandoning IP address 192.0.1.230: declined. Feb 2 19:35:05 localhost dhcpd: DHCPDECLINE of 192.0.1.230 from 6C:88:14:DD:19:D0 via enp14s0: abandoned
但用户192.0.1.230总是可以访问互联网。