一、
某客户机使用DHCP获取IP地址等信息,其获取lP地址过程中捕获的4条报文及对第2条报文分析如下所示。请分析其中的信息,补全内容。
编号 报文摘要
DHCP:Request, Type:DHCP discover
DHCP:Reply, Type:DHCP__________
DHCP:Request, Type:DHCP Request
DHCP:Reply, Type:DHCP ACK
DLC:---------DLC Heacer-------------------
DLC: Destination =__________
DLC: Source=001122334455
DLC: Ethertype=0800(MP)
IP:D=__________,S=192.168.0.1
__________:D=68,S=67
DHCP:---------------DHCP Header ---------------
DHCP: Boot record type=2(Reply)
DHCP:Hardware address type =1(10M Ethernet)
DHCP:Hardware address length = 6 bytes
DHCP: HopS=0
DHCP: Transaction id=6019121F
DHCP: Elapsed boot time=0 seconds
DHCP: Flags=0000
DHCP:0= no broadcast
DHCP: Client self-assigned address = [0.0.0.0]=[192.168.0.180
DHCP: Next Server to use in bootstrap = [0.0.0.0]
DHCp: Client address
DHCP: Relay Agent= [0.0.0.0]
DHCP: Client hardware address = 001234567890
DHCP: Host name=
DHCP: Boot file name=
DHCP: Vendor Information tag = 53825276
DHCP: Message Type=2
DHCP: Address renewel interval=345600(seconds)
DHCP:Address rebinding interval = 604800(seconds)
DHCP: Request IP Address leased time = 691200 (seconds)
DHCP: Sever lP Address =__________
DHCP: Subnet mask=255.255.255.0
DHCP: Gateway address=[192.168.0.1001
DHCP: Domain Name Server address =[202.106.0.100
offer
ffffffffffff
255.255.255.255
UDP
192.168.0.1
二、
用DHCP服务器对公司内部主机的P地址进行管理,在DHCP客户机上执行"pconfg /al1“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(8)所示,请分析图中的信息,补全图(B)中的内容。
编号 报文摘要 源IP地址 目的IP地址
__________ __________ DHCP:Request, Type:DHCP__________
DHCP:-----DHCP Header ---
DHCP: Boot record type=1(Request)
DHCP: Hardware address type=1(10M Ethernet)
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 broadcast
DHCP: Client self-assigned address =__________
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: Host names
DHCP: Boot file name
DHCP: Vendor Information tag=53825276=3
DHCP: Message Type
DHCP: Client identifier=01001122334455
DHCP: Hostname= "Host1"
DHCP: Unidentified tag 81
4D53465420352E30
DHCP: Parameter Request List: 11 entries
DHCP: Class identifier
192.168.0.1
192.168.0.101
Request
0.0.0.0
192.168.0.1
三、
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
__________ 0.0.0.0DHCP:Request,Type:DHCP discover 2013-06-02 9:07:00
59.64.188.201 255.255.255.255 DHCP:Reply,Type:DHCP offer 2013-06-02 9:07:00
0.0.0.0 255.255.255.255 DHCP:Request, Type:DHCP__________2013-06-02 9:07:00
__________ 255.255.255.255 DHCP:Reply, Type:DHCP ack2013-06-02 9:07:00
DHCP:--------------------0 neacer ------
DHCP: Boot record type = 2 (Reply)
DHCP: Hardware address type = 1(10M Ethernet)
DHCP: Hardware address length = 6 bytes
DHCP: Hops =0
DHCP: Transactionid =2219231D
DHCP: Elapsed boot time =0 seconds
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 =__________
255.255.255.255
request
59.64.188.201
59.64.188.100
255.255.255.0
四、
某公司网络管理员使用DHCP服务器对公司内部主机的IP地址进行管理。在某DHCP客户机上连续执行"ipconfa /al"和"ipconfia /renew"命令,执行"ipconfig/a!"得到的部分信息如图(a)所示,执
行"ipconfig /renew"命令时,在客户机捕获的报文及相关分析如图(b)所示。请分析图中的信息,补今字白外内容
编号 源IP地址 目的IP地址 报文摘要 报文捕获时间
1 192.168.0.50__________DHCP:Request,Type: DHCP Request 2013-07-18 09:10:00
2 192.168.0.100__________DHCP: Reply,Type: DHCP ack 2013-07-1809:10:00
DHCP:----------------DHCpHeader-------------------
DHCP: Boot record type = 2(Reply)
DHCP: Hardware address type =1(10M Ethernet)
DHCP: Hardware address length =__________bytes
DHCP: Hops =0
DHCP: Transaction id = 2219121F
DHCP: Elapsed boot time =0 seconds
DHCP: Flags =0000DHCP:0= no broadcast
DHCP: Client self-assiqned address =[0.0.0.0]
DHCP: Client address = [192.168.0.50]
DHCP: Next Server to use in bootstrap = [0.0.0.0]
DHCP: Relay Agent = [0.0.0.0]
DHCP: Client hardware address =__________
DHCP: Host name =
DHCP: Boot file name =
DHCP:VendorInformation tag=53825363
DHCP: Message Type =5 (DHCP Ack)
DHCP:Address renewel interyal= 345600(seconds)
DHCP: Address rebinding interval = 604800(seconds)
DHCP: Request IP Address leased time =691200(seconds)
DHCP: Sever lP Address =[192.168.0.100]
DHCP:Subnet =255.255.255.0
DHCP:Gateway address =[192.168.0.1
DHCP:Domain Name Server address =__________
图(B) 在DHCP客户机上执行ipconfig/renew时捕获的报文及第2条报文的分析
192.168.0.100
192.168.0.50
6
00-16-18-F1-C5-68
192.168.0.100
五、
某网络中DHCP服务器地址为10.0.0.1.MAC地址为00-12-34-56-78-90,可分配|P地址范围为10.0.0.50-10.0.0.100.其中10.0.0.50保留给MAC地址是00-111-22-33-44-55的主机。网络中某客户机从该服务器续约IP地址的过程中,在客户机捕获的2条报文及对第1条报文的分析如下图所示。请补充图中空白处的信息。
编号报文摘要
DHCP:Request, Type:DHCP__________
DHCP:Reply, Type:DHCP__________
DC·--------Dlc Header ----
DLC: Destination=001234567890
DLC: Source=001122334455
DLC: Ethertype=0800(IP)
IP: Destination Address =__________Source Address =__________
UDP: Destination Port= 67, Source Port = 68
DHCP:-DHCP Header -
DHCP: Boot record type =1(Request)
DHCP: Hardware address type = 1 (10M Ethernet)
DHCP: Hardware address length = 6 bytes
DHCP: Hops =0DHCP: Transaction id = 604D121F
DHCp: Elapsed boot time =0 seconds
DHCP: Flags = 0000DHCP: 0 = no broadcast
DHCP: Client self-assigned address =__________
DHCP: Client address =[0.0.0.0]
DHCP: Next Server to use in bootstrap = [0.0.0.0]
DHCP: Relay Agent = [0.0.0.0]
DHCP: Client hardware address = 001122334455
DHCP: Host name =
DHCP: Boot file name = ""
DHCP: Vendor Information tag = 53825276
DHCP: Message Type =3
Request
ACK
10.0.0.1
10.0.0.50
10.0.0.50
六、
某公司网络管理员使用DHCP服务器对公司内部主机的P地址进行管理。在某DHCP客产机上执行“ipconfg/al”得到的部分信息如图(8)所示,在该客户机捕获的部分报文及相关分析如图(b)所示。请分析图中的信息,充图(b)中空白处的内容。
编号 源IP地址 目的IP地址 报文摘要 报文捕获时间
__________ 255.255.255.255 DHCP:Request,Type:DHCP discover 2013-11-18 09:30:05
__________ __________ DHCP:Reply,Type:DHCP__________2013-11-18 09:30:05
DHCP:-----DHCp Header ----
DHCP: Boot record type = 2 (Reply)DHCP: Hardware address type = 1 (10M Ethernet)
DHCP: Hardware address length = 6 bytes
DHCP: HopS =0
DHCP: Transaction id = 3419121F
DHCP:Elapsed boot time =0 seconds
DHCP: Flags = 0000
DHCP: 0 = no broadcast
DHCP: Client self-assiqned 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=112233445566
DHCP: Host name =
DHCP: Boot file name =M
DHCP: Vendor Information tag = 53825276
DHCP:Message Type =2
DHCP:Address renewelinteryal= 345600(seconds)
DHCP:Address rebinding interyal= 604800(seconds)
DHCP: RequestIP Address leased time= 691200(seconds)
DHCP: Sever lP Address = [192.168.0.100]
DHCP: Subnet mask = 255.255.255.0
DHCP: Gateway address = [192.168.0.1]
DHCP: Domain Name Server address = [192.168.0.101]
0.0.0.0
192.168.0.100
255.255.255.255
offer
192.168.0.20
七、
网络管理员使用DHCP服务器对公司内部主机的!P地址进行管理,在DHCP客户机上执行“pconng/a”得到的部分信息如图()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(6)所示。请分析图中的信息,补充图(b)中空白处的内容。
编号 报文 摘要
1 DHCP:Reply, Type:DHCP__________
IP:----pneader---------------
IP: Protocol =__________
IP: Source address__________
IP: Destination address =__________
DHCP:------DHCP Header
DHCP: Boot record type =2 (Reply)
DHCP: Hardware address type =1 (10M Ethernet)
DHCP: Hardware address length = 6 bytes
DHCP:Hops=0
DHCP:Transactionid=3BDB064C
DHCP: Elapsed boot time =0 seconds
DHCP: Flags = 0000
DHCP:0 = no broadcast
DHCP: Client self-assigned address = [192.168.0.1]
DHCP: Client address =[192.168.0.1]
DHCP: Next Server to use in bootstrap = [0.0.0.0]
DHCP: Relay Agent =__________
DHCP: Client hardware address =001122334455
DHCP: Host name = ""
DHCP: Boot file name =MI
DHCP: Vendor Information tag = 63825363
DHCP: Message Type =5
DHCP: Client identifier= 01001122334455
DHCP:Address renewel interval = 345600(seconds)
DHCP: Address rebinding interval = 604800(seconds)
DHCP: Request IP Address leased time = 691200 (seconds)
DHCP: SeverIP Address = [192.168.0.101
DHCP: Subnet mask=255.255.255.0
ACK
UDP
192.168.0.101
192.168.0.1
0.0.0.0
八、
某公司网络中DHCP服务器可动态分到P地址范围为192.1680100-192.1680200,其中192.1680100保留给MAC地址是00-11-2-33-4-5的丰机,网络中草客户机从该服务器获助P地址的讨程中。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。请分析其中的信息,补全内容。
编号 报文摘要
1 DHCP:Request. Type:DHCP discover
DHCP:Reply, Type:DHCP offer
3 DHCP:Request, Type:DHCP Request
4 DHCP:Reply, Type:DHCP__________
IP: Destination Address =__________
Source Address =__________
UDP: Destination Port = 67, Source Port = 68
DHCP:-----DHCP Header -----
DHCP: Boot record type = 2 (Reply)
DHCP: Hardware address type = 1 (10M Ethernet)
DHCP: Hardware address length = 6 bytes
DHCP: Hops = 0
DHCP: Transaction id = 604D121F
DHCP: Elapsed boot time = 1024 seconds
DHCP: Flags =0000DHCP: 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 =__________
DHCP: Client hardware address = 001122334455
DHCP: Host name =
DHCP: Boot file name = ""
DHCP: Vendor Information tag=53825276
DHCP:Message Type=5
DHCP: Address renewel interval = 345600 (seconds)
DHCP:Address rebinding interval= 604800(seconds)
DHCP: Request IP Address leased time = 691200(seconds)
DHCP:ServerlP Address= 192.168.0.1
DHCP: Subnet mask=255.255.255.0
的过程中,在客户机捕获的4条报文及对第4条报文的分析如下图所示。请分析其中的信息,补全内容。
ACK
255.255.255.255
192.168.0.1
192.168.0.100
0.0.0.0
九、
某公司使用DHCP服务器对公司内部主机的IP地址进行管理,已知:该公司共有40个可用IP地址为:59.64.22.11~59.64.22.50DHCP服务器选用Windows 2003 Server,其IP 地址为:59.64.22.12DHCP客户机使用的操作系统是WindowsXP请问答下列问题:
(1)DHCP客户机得到下图所示信息使用的命令是__________
(2)如下图所示DHCP服务器作用域的配置界面中,长度域输入的数值应是__________
(3)在能为客户机分配地址之前,还必须执行的操作是__________
(4)DHCP服务器要为一个客户机分配固定的IP地址时,需要执行的操作是__________
(5)DHCP客户机要释放已获取的IP地址时,使用的命令是__________
ipconfig/all
26
激活作用域
配置【新建保留】对话框中的相关参数
ipconfig/release
十、
在某DHCP客户机上捕获了5条报文,并对第5条报文进行了解析,是在该客户机捕获上述报文后执行ipconfig /al 命令后得到的部分信息。
偏号源P地址目的P地址 报文摘要 报文捕获时间。
1 192.168.1.1 192.168.1.36 DHCP:Request, Type:DHCP release 09:06:55
2 0.0.0.0 255.255.255.255 DHCP:Request,Type:DHCP discover 09:07:00
3 192.168.1.36__________DHCP:Reply, Type:DHCP offer 09:07:00
4 0.0.0.0 255.255.255.255 DHCP:Request, Type:DHCP request 09:07:00
5 192.168.1.36__________DHCP:Reply, Type:DHCP ack 09:07:00
DHCP:-----DHCP Header ---
DHCP: Boot record type = 2 (Reply)
DHCP: Hardware address type = 1(10M Ethernet)
DHCP: Hardware address length = 6 bytes
DHCP: Hops =0
DHCP: Transaction id = 2219131D
DHCP: Elapsed boot time =0 seconds
DHCP: Flags = 0000
DHCP: 0 = no broadcast
DHCP: Client self-assigned address = [0.0.0.0]
DHCP: Client address = [192.168.1.1]
DHCP: Next Server to use in bootstrap = [0.0.0.0]
DHCP: Relay Agent = [0.0.0.0]
DHCP: Client hardware address = 000F1F2F3F4F
DHCP: Vendor Information tag = 63825363
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= 255.255.255.0
DHCP: Gateway address = [192.168.1.100]
DHCP: Domain Name Server address =[202.106.46.151]
在DHCP客户机上捕获的IP报文及相关分析
Ethernet adapter 本地连接:
Connection-specific DNS Suffix .:
Description ...........: Broadcom 440x 10/100 Integrated Controller
Physical Address.__________
DHCP Enabled.__________
IP Address..192.168.1.1
Subnet Mask255.255.255.0
Default Gateway__________
在DHCP客户机执行ipconfig /all 获得的信息
255.255.255.255
255.255.255.255
00-0F-1F-2F-3F-4F
Yes
192.168.1.100