填空题

某公司使用Windows 2003 DHCP服务器对内部主机的IP地址进行管理，DHCP服务器的新建作用域及新建保留配置如图A和图B所示。
某DHCP客户机从该DHCP服务器获取IP地址过程中，在客户机捕获的4条报文及对第4条报文的分析如下所示。请补充其中的信息。

 

编号	源IP地址	目的IP地址	报文摘要	报文捕获时间
1	0.0.0.0	______	DHCP:Request,Type:DHCP discover	2013-06-02 9:07:00
2	59.64.188.201	255.255.255.255	DHCP:Reply,Type:DHCP offer	2013-06-02 9:07:00
3	0.0.0.0	255.255.255.255	DHCP:Request,Type:DHCP ______	2013-06-02 9:07:00
4	______	255.255.255.255	DHCP:Reply,Type:DHCP ack	2013-06-02 9:07:00

DHCP: -----DHCP Header-----
DHCP: Boot record type =2(Reply)
DHCP: Hardware address type =1(10MEthernet)
DHCP: Hardware address length =6bytes
DHCP: Hops =0
DHCP: Transaction id =2219231 D
DHCP: Elapsed boot time =0seconds
DHCP: Flags =0000
DHCP: 0 =no broadcast
DHCP: Client self-assigned address =[0.0.0.0]
DHCP: Client address =______
DHCP: Next Server to use in bootstrap =[0．0．0．0]
DHCP: Relay Agent =[0.0.0.0]
DHCP: Client hardware address =001122334455
DHCP: Message Type =5(DHCP Ack)
DHCP: Address renewel interval =345600(seconds)
DHCP: Address rebinding interval =604800(seconds)
DHCP: Request IP Address lease time =691200(seconds)
DHCP: Subnet mask =______