from router log file,
Wed Jan 13 09:36:44 2010 : DHCP Client : Send Request, Request IP = 74.66.141.1xx
Tue Jan 12 21:36:44 2010 : DHCP Client : Receive Ack from 10.70.0.1, Lease time = 86400
Wed Jan 13 09:36:44 2010 : DHCP Client : Send Request, Request IP = 74.66.141.1xx
Tue Jan 12 21:36:44 2010 : DHCP Client : Receive Ack from 10.70.0.1, Lease time = 86400