问题描述：1970-01-01 00:00:01 [5] DHCPC: Send DISCOVER with request ip 0.0.0.0 and unicast flag 0 1970-01-01 00:00:04 [5] DHCPC: Send DISCOVER with request ip 0.0.0.0 and unicast flag 0 1970-01-01 00:00:04 [5] DHCPC: Recv OFFER from server 10.10.2.1 with ip 10.10.2.13 1970-01-01 00:00:05 [5] DHCPC: Send REQUEST to server 10.10.2.1 with request ip 10.10.2.13 1970-01-01 00:00:05 [5] DHCPC: Recv ACK from server 10.10.2.1 with ip 10.10.2.13 lease time 7200