题目内容:
用DHCP服务器对公司内部主机的IP地址进行管理。在DHCP客户机上执行"ipconfig/all"得到的部分信息如图(A.所示,该客户机在进行地址续约时捕获的其中1条报文及相关分析如图(B.所示。请分析图中的信息,补全图(B.中的内容。
Ethemet adapter本地连接:Connection.specffic DNS Suffix.:
Description...........:Broadcom 440x 10/100 Integrated Controller
Physical Address.........:00-11-22-33-44-55
Dhcp Enabled...........:Yes
IP Address............:192.168.0.1
Subnet Mask...........:255.255.255.0
Default Gateway.........:192.168.0.100
DHCP Server............:192.168.0.101
DNS Server............:192.168.0.102
Lease Obtained..........:2013年5月18日8:30:05
Lease Expires..........:2013年5月26日8:30:05
图(A.在DHCP客户机执行ipconfi9/all获取的部分信息
编号源IP地址目的IP地址报文摘要
DHCP:Request,Type:DHCP
1【11】【12】【13】
DHCP:- - - - -=DHCP Header- - - - - -
DHCP:Boot record type=l(Request)
DHCP:Hardware address type=l(IOM Etllemet)
DHCP:Hardware address length=6 bytes
DHCP:Hops=0
DHCP:Transaction id=34191219
DHCP:Elapsed boot time=0 seconds
DHCP:Flags=0000
DHCP:0=no bmadcast
DHCP:Client self-assigned address=【14】
DHCP:Client address=【15】
DHCP:Next Senrer to use in bootstrap=[0.O.0.01
DHCP:Rehy Agent=[0.0.0.0]
DHCP:Client hardware address=001122334455
DHCP:Host name=""
DHCP:Boot file nanle=""
DHCP:Vendor Information tag = 53825276
DHCP:Message Type=3
DHCP:Client identifier=01001122334455
DHCP:Hostname="Hostl"
DHCP:Unidentified tag 81
DHCP:Class identifier=4D53465420352E30
DHCP:Parameter Request List:ll entries
图(B)在DHCP客户机上进行地址续约时捕获的一条报文及相关分析
参考答案:
答案解析: