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1、1 第第三三个大题个大题 报文分析报文分析 第一套：第一套：某客户机使用 DHCP 获取 IP 地址等信息，其获取 IP 地址过程中捕获的 4 条报文及第2 条报文分析如下图所示。请分析其中的信息，补全内容。编号 报文摘要 1 DHCP:Request,Type:DHCP discover 2 DHCP:Reply,Type:DHCP 3 DHCP:Request,Type:DHCP Request 4 DHCP:Reply,Type:DHCP ACK DLC:-DLCHeader-DLC:Destination =DLC:Source =001122334455 DLC:Ethertype
2、=0800(IP)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 sel
3、f-assigned address =0.0.0.0 DHCP:Client address =192.168.0.180 DHCP:Next Sever to use in bootstrap =0.0.0.0 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 in
4、terval =345600(seconds)DHCP:Address rebinding interval =604800(seconds)DHCP:Request IP Address leased time =691200(seconds)DHCP:Sever IP Address =DHCP:Subnet mask =255.255.255.0 DHCP:Gateway address =192.168.0.100 DHCP:Domain Name Server address =202.106.0.100 2 第第二二套：套：用 DHCP 服务器对公司内部主机的 IP 地址进行管理。
5、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。请分析其中的信息，补全图（B）中的内容。Ethernet adapter 本地连接 Connection specific DNS Suffix .:Description:Broadcom 440 x 10/100 Integrated Controller Physical Address.:00-11-22-33-44-55 Dhcp Enabled:Yes IP Address:192.168.0.1 Subnet Mask.:25
6、5.255.255.0 Default Gateway.:192.168.0.100 DHCP Sever:192.168.0.101 DNS Sever.: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 ipconfig/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 DHCP:-DHCP Header-DHCP:Boot record type =
7、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 Sever to use in bootstrap =0
8、.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 DHCP:Client identifier =01001122334455 DHCP:Hostname =“Host1”DHCP:Unidentified tag 81 DHCP:Class identifier =4D53465420352E3
9、0 DHCP:Parameter Request List:11 entries 3 .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 4 第第三三套：套：公司使用 Windows 2003DHCP 服务器对内部主机的 IP 地址进行还礼，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:DHC
10、P 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
11、 address type =1(10M Ethernet)DHCP:Hardware address length =6 bytes DHCP:Hops =0 DHCP:Transaction id =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 Sever to use in bootstrap =0.0.0.0 DHCP:Rel
12、ay 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 leased time =691200(seconds)DHCP:Subnet mask =5 第四套：第四套：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
13、管理。在某 DHCP客户机上执行“ipconfig/all”和“ipconfig/renew”命令，执行“ipconfig/all”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，补全空白处的内容。Ethernet adapter 本地连接 Description:Broadcom 440 x 10/100 Integrated Controller Physical Address.:00-16-18-F1-C5-68 Dhcp Enabled:Yes IP Address:192.168.0.50 Su
14、bnet Mask.:255.255.255.0 Default Gateway.:192.168.0.1 DHCP Sever:192.168.0.100 DNS Sever.:192.168.0.100 Lease Obtained:2013 年 7 月 18 日 8:29:03 Lease Expires.:2013 年 7 月 26 日 8:29:03 图（A）在 DHCP 客户机执行 ipconfig/all 获取的部分信息 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 20
15、13-07-18 09:10:00 2 192.168.0.100 DHCP:Request,Type:DHCP ack 2013-07-18 09:10:00 DHCP:-DHCP Header-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 =00
16、00 DHCP:0 =no broadcast DHCP:Client self-assigned address =0.0.0.0 DHCP:Client address =192.168.0.50 DHCP:Next Sever 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:Vendor Information tag =53825363 DHCP:Message Type =
17、5(DHCP Ack)DHCP:Address renewel interval =345600(seconds)DHCP:Address rebinding interval =604800(seconds)DHCP:Request IP Address leased time =691200(seconds)DHCP:Sever IP Address =192.168.0.100 6 DHCP:Subnet =255.255.255.0 DHCP:Gateway address =192.168.0.1 DHCP:Domain Name Server address =图（B）在 DHCP
18、 客户机上执行 ipconfig/renew 时捕获的报文及第 2 条报文的分析 7 第五套：第五套：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 IP 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 00-11-22-33-44-55 的主机。网络中某客户从该服务器续约 IP 地址的过程在，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。请补充图纸空白处的信息。编号 报文摘要 1 DHCP:Request,Type:DHCP 2 DHCP:Reply,Typ
19、e:DHCP DLC:-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 lengt
20、h =6 bytes DHCP:Hops =0 DHCP:Transaction id =604D121F DHCP:Elapsed boot time =0 seconds DHCP:Flags =0000 DHCP:0 =no broadcast DHCP:Client self-assigned address =DHCP:Client address =0.0.0.0 DHCP:Next Sever to use in bootstrap =0.0.0.0 DHCP:Relay Agent =0.0.0.0 DHCP:Client hardware address =001122334
21、455 DHCP:Host name =“”DHCP:Boot file name =“”DHCP:Vendor Information tag =53825276 DHCP:Message Type =3 8 第六套：第六套：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。请分析其中的信息，补全图（b）中的内容。Ethernet adapter 本地连接 Connection specific DNS Suff
22、ix .:Description:Broadcom 440 x 10/100 Integrated Controller Physical Address.:11-22-33-44-55-66 Dhcp Enabled:Yes IP Address:192.168.0.20 Subnet Mask.:255.255.255.0 Default Gateway.:192.168.0.1 DHCP Sever:192.168.0.100 DNS Sever.:192.168.0.101 Lease Obtained:2013 年 11 月 18 日 9:30:05 Lease Expires.:2
23、013 年 11 月 26 日 9:30:05 图（a）编号 源 IP 地址 目的 IP 地址 报文摘要 摘要捕获时间 1 255.255.255.255 DHCP:Request,Type:DHCP discover 2013-11-18 09:30:05 1 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 byt
24、es DHCP:Hops =0 DHCP:Transaction id =3419121F 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 Sever to use in bootstrap =0.0.0.0 DHCP:Relay Agent =0.0.0.0 DHCP:Client hardware address =112233445566 DHCP
25、: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 IP Address =192.168.0.100 DHCP:Subnet mask =255
26、.255.255.0 9 DHCP:Gateway address =192.168.0.1 DHCP:Domain Name Server address =10 第七套：第七套：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。请分析其中的信息，补全图（b）中的内容。Ethernet adapter 本地连接 Connection specific DNS Suffix .:Description:Broadc
27、om 440 x 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 Sever:192.168.0.101 DNS Sever.:192.168.0.102 图（a）编号 报文摘要 1 DHCP:Reply,Type:DHCP IP:-IP Header-IP:Protocal=IP:Source address
28、=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:Transaction id =3BDB064C DHCP:Elapsed boot time =0 seconds DHCP:Flags =0000 DHCP:0 =no broadcast DHCP:Client self-assigned addre
29、ss =192.168.0.1 DHCP:Client address =192.168.0.1 DHCP:Next Sever 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 =63825363 DHCP:Message Type =5 DHCP:Client identifier =01001122334455 DHCP:A
30、ddress renewel interval =345600(seconds)DHCP:Address rebinding interval =604800(seconds)DHCP:Request IP Address leased time =691200(seconds)11 DHCP:Sever IP Address =192.168.0.101 DHCP:Subnet mask =255.255.255.0 12 第第八八套：套：某公司网络中 DHCP 服务器可动态分配 IP 地址范围为 192.168.0.100-192.168.0.200，其中 192.168.0.100 保留
31、给 MAC 地址是 00-11-22-33-44-55 的主机。网络中某客户从该服务器获取 IP地址的过中在，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。编号 报文摘要 1 DHCP:Request,Type:DHCP discover 2 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 Por
32、t=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 =0000 DHCP:0 =no broadcast DHCP:Client self-assigned address =0.0.0.0 DHCP
33、:Client address =DHCP:Next Sever 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
34、 =604800(seconds)DHCP:Request IP Address leased time =691200(seconds)DHCP:Sever IP Address =192.168.0.1 DHCP:Subnet mask =255.255.255.0 13 第第九九套：套：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：59.64.22.1159.64.22.50，DHCP 服务器选用 Windows 2003 Sever，其 IP 地址为：59.64.22.12，DHCP 客户机使用的操作系统是 Windows
35、 XP。请回答下列问题：（1）DHCP 客户机得到下图所示信息使用的命令是：Ethernet adapter 本地连接 Connection specific DNS Suffix .:Description:Broadcom 440 x 10/100 Integrated Controller Physical Address.:00-0F-1F-52-EF-F6 Dhcp Enabled:Yes Autoconfiguration Enabled:Yes IP Address:59.64.22.50 Subnet Mask.:255.255.255.192 Default Gateway.
36、:59.64.22.11 DHCP Sever:59.64.22.12 DNS Sever.:59.64.22.13 Lease Obtained:2007 年 12 月 14 日 14:29:03 Lease Expires.:2007 年 12 月 22 日 14:29:03 图 DHCP 客户机得到的信息（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 14 第第十十
37、套：套：如图 2 所示，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，图3 是在该客户机捕获上述报文后执行 ipconfig/all 命令后得到的部分信息。分析图中信息，并补全图中空白处的内容。编号 源 IP 地址 目的 IP 地址 报文摘要 摘要捕获时间 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:Rep
38、ly,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:Transacti
39、on 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 Sever to use in bootstrap =0.0.0.0 DHCP:Relay Agent =0.0.0.0 DHCP:Client hardware address =000F1F2F3F4F DHCP:Vendor Informatio
40、n tag =63825363 DHCP:Message Type =5(DHCP Ack)DHCP:Address renewel interval =345600(seconds)DHCP:Address rebinding interval =604800(seconds)DHCP:Request IP Address leased time =691200(seconds)DHCP:Subnet mask =255.255.255.0 DHCP:Gateway address =192.168.1.100 DHCP:Domain Name Server address 202.106.
41、46.151 DHCP:Domain Name Server address 202.106.195.68 图 2 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 440 x 10/100 Integrated Controller Physical Address.:Dhcp Enabled:Autoconfiguration Enabled:Yes IP Address:192.168.1.1 Subnet Mask.:255.255.
42、255.0 Default Gateway.:15 图 3 在 DHCP 客户机执行 ipconfig/all 获得的信息 16 第第十一十一套：套：在某 DHCP 客户机执行 ipconfig/all 命令后得到的部分信息如图（a）所示。图（b）是在该客户机上依次执行 ipconfig/all 和 ipconfig/renew 时捕获的报文，并对其中第 5 条报文进行了解析。分析图中的信息并补全图中空白处的信息。Ethernet adapter 本地连接 Description:Broadcom 440 x 10/100 Integrated Controller Physical Addr
43、ess.:00-11-22-33-44-55 Dhcp Enabled:Yes IP Address:192.168.0.30 Subnet Mask.:255.255.255.0 Default Gateway.:192.168.0.1 DHCP Sever:192.168.0.36 图（a）在 DHCP 客户机执行 ipconfig/all 获取的部分信息 编号 源 IP 地址 目的 IP 地址 报文摘要 摘要捕获时间 1 DHCP:Request,Type:DHCP release 09:06:55 2 255.255.255.255 DHCP:Request,Type:DHCP dis
44、cover 09:07:00 3 192.168.0.36 255.255.255.255 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 5 192.168.0.36 DHCP:Reply,Type:09:07:00 DHCP:-DHCP Header-DHCP:Boot record type =2(Reply)DHCP:Hardware address type =1(10M Ethernet)DHCP:Hardware addres
45、s length =6 bytes DHCP:Client self-assigned address =0.0.0.0 DHCP:Client address =192.168.0.30 DHCP:Next Sever to use in bootstrap =0.0.0.0 DHCP:Relay Agent =0.0.0.0 DHCP:Client hardware address =001122334455 DHCP:Vendor Information tag =63825363 DHCP:Message Type =5 DHCP:Address renewel interval =3
46、45600(seconds)DHCP:Address rebinding interval =604800(seconds)DHCP:Request IP Address leased time =691200(seconds)DHCP:Subnet mask =255.255.255.0 DHCP:Gateway address =192.168.0.1 DHCP:Domain Name Server address 202.106.46.151 图（b）在 DHCP 客户机上捕获的 IP 报文 17 第第十二十二套：套：如图(a)所示，在某 DHCP 客户机捕获了 5 条报文，并对其中第
47、5 条报文进行了解析，图（b）是在该客户机捕获上述报文后执行 ipconfig/all 命令后得到的部分信息。分析图中的信息并补全图中空白处的信息。编号 源 IP 地址 目的 IP 地址 报文摘要 摘要捕获时间 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 3 192.168.0.36 DHCP:Reply,Type:DHCP offer 09:07:00 4 0.0.0.0
48、 255.255.255.255 DHCP:Request,Type:DHCP request 09:07:00 5 192.168.0.36 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 tim
49、e =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 Sever to use in bootstrap =0.0.0.0 DHCP:Relay Agent =0.0.0.0 DHCP:Client hardware address =001122334455 DHCP:Vendor Information tag =63825363 DHCP:Message Type =5(
50、DHCP Ack)DHCP:Address renewel interval =345600(seconds)DHCP:Address rebinding interval =604800(seconds)DHCP:Request IP Address leased 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 图（a）在 DHCP 客户机上捕获的 IP 报文及相关分析