问题描述：今天早上忽然无法获取ip了 日志如下 1 0000:系统启动成功. 2 0004:DHCP client tx discover(B). 3 0032:Flags was changed to be 0x0. 4 0090:Flags was changed to be 0x0. 5 0122:DHCP request timeout. 6 0123:DHCP client tx discover(B). 7 0149:Flags was changed to be 0x0. 8 0208:Flags was changed to be 0x0. 9 0240:DHCP request timeout. 10 0241:DHCP client tx discover(B). 11 0267:Flags was changed to be 0x0. 12 0326:Flags was changed to be 0x0. 13 0358:DHCP request timeout. 14 0359:DHCP client tx discover(B). 15 0385:Flags was changed to be 0x0. 16 0444:Flags was changed to be 0x0. 17 0476:DHCP request timeout. 18 0477:DHCP client tx discover(B). 19 0503:Flags was changed to be 0x0. 20 0562:Flags was changed to be 0x0. 21 0587:DHCPS: 1:0x78e40003b8a8, 192.168.99.100, ACK in request. 22 0594:DHCP request timeout. 23 0595:DHCP client tx discover(B). 24 0621:Flags was changed to be 0x0.