Exp02 Internet Protocol Arp Purpose 1 Learn Message Format Ip Datagrams 2 Learn Ip Checksu Q43789739

LOX 网上邻居文件T) 0 地址0) | ET 查看) 收港(4) 工具 ) 帮助) 0.jp找索文件夹 , 网上邻居计算机网络同路任等一个同上非居查看向连接 BIRU A 其它位置我的車特口北的文档 | 打印机和住五 ||||| 网络连接文件 T) E)在着¢) 收圍 (4) 工具 I) 高(0) 帮助) 后退,y) f 撤常位文件夹 · 地址)各连接 LAN 22 Internet 网络任务回创建一个新的生接 VirtualBox Most-Only two DOX 网络连接文件) 痛端2) 查看vo 收来A) 工具) 高級(2) 若助 CHO 后退, 全都素哈文件夹 , 地址)。同路连接转到 ALAN RR Internet 同穿在身创建一个新的连接自更改 Findows防火 Virtua 安全配置向导 r sal sim a ch Fastles -OX 同轴连接 11月 11 刊的文档 1 all - 本庄长4属性第規者证 | | 连接时使用: Real ask PCIe GUE Tamily Centart 我的出院 | -OX 网络连接文件)请避L) 查看次 ) 工具) 高布的出 L本地连接4属性 2 x 地址)。座落连接转到 Internet til (TCP/IP) EU 策划如果统支持此功能,则可以获取自动指示的 IT 设黃,否则, 您需要从路系统管理 Exp02. Internet Protocol (ARP) Purpose 1. Learn the message format of IP datagrams 2. Learn IP checksum calculation method 3. Learn subnet mask and route forwarding 4. Understand the meaning of a special IP address 5. Understand the IP fragmentation process 6. Understand how the protocol stack handles the IP protocol 7. Understand the role of the IP routing table and the management of the IP routing table Experiment Steps This experiment uses Network Structure II as experiment 2 does. Before each host starts the protocol editor to verify the network structure, you have to change the IP ad host within your group. How to change your IP: oti Sac Orel Vare d rex Este tradit e Fil! FE REF2,447 cises Tacitet Internet Explorer 30 Microsoft Vi TEEPRO 2015.16 LOX 网上邻居文件T) 0 地址0) | ET 查看) 收港(4) 工具 ) 帮助) 0.jp找索文件夹 , 网上邻居计算机网络同路任等一个同上非居查看向连接 BIRU A 其它位置我的車特口北的文档 | 打印机和住五 ||||| 网络连接文件 T) E)在着¢) 收圍 (4) 工具 I) 高(0) 帮助) 后退,y) f 撤常位文件夹 · 地址)各连接 LAN 22 Internet 网络任务回创建一个新的生接 VirtualBox Most-Only twork 但改 Nindows 防火嗜设 | elte | GBE Realtek PCIe GBE… 相关主 1 盘戲进样告程序 Not the VirtualBox one And not the crossed one 其它位置口控制面板网上鄰居我的文档了我的电脑 Yes, choose the one that’s left. (For some hosts, the one’s left might be “本地连接S”, So be careful. ) 洋细信息网络连接系统文件喜 DOX 网络连接文件) 痛端2) 查看vo 收来A) 工具) 高級(2) 若助 CHO 后退, 全都素哈文件夹 , 地址)。同路连接转到 ALAN RR Internet 同穿在身创建一个新的连接自更改 Findows防火 VirtualBox Host-Only Network our body “Network 37 本地生接內容由英法找出 Realtek PCIe GBE 禁用F) 状态 U) 修复) 桥接) 禁用此同络设备 0 修訂此连接重命名此生接查着此连接的状态回更改此连接的设置创建快捷方式) 障 ) 重命名W) RRER) 其它位置己控制面板 | 网上和居自我的文档北的电脑 Right click the one you choose and then click “属性(R) 详细信息本地连接 4 LAN 75 Internet 已连接 Realtek PCIe GBE Family Controller #4 IF 地址:169.254.1379 安全配置向导 r sal ” sim a ch Fastles -OX 同轴连接 11月 11 刊的文档 1 all – 本庄长4属性第規者证 | | 连接时使用: ” Real ask PCIe GUE Tamily Centart 我的出院 | 国第往事配置(C) W indows Realtek II. GIT 同上禁用此品後音修工程此连接使用下列項目)。 Link NetBIOS Y ink IPI/SPE/ X TOS Compatible Transpor Internet (TCP/IP) 查看此使用的代表更改此连用的设置 Internet Explorer Ca ] TFITF 是默认的广域以,建們等多种互联 n es JE 生根后在国牛区城里青,) 此主推法来制来无连挂时山992) |验电信 114 LANK Tnternet 推 Restek PCIe GBE Ymily Controller | IP 100 ,137 建国 | | “ 四个 15 19 -OX 网络连接文件)请避L) 查看次 ) 工具) 高布的出 L本地连接4属性 2 x 地址)。座落连接转到 Internet til (TCP/IP) EU 策划如果统支持此功能,则可以获取自动指示的 IT 设黃,否则, 您需要从路系统管理员处获得适当的 IF 设置: 本地连接4 Redtek PCIe GBE… 网络任务创建一个新的连接 8 Windows : 墙设置禁用此各设备修复此连接 mel 重命名此连接查看此连接的状韵口更改此连接的设置 | Q自动获得 IF 地址 @) 使用下面的 IP 地址): IF 地址 ) 子网掩码如: 默认网关D): 116 | S $ 5 ,0 172 .16 ( 其它位置已控制面板网上能居我的文档了我的电脑自动获得DS 觀察器地址 E- 使用下面的 DNS 服务器地址)。首选 DE 服务器 PT: 备用加密服务器 (A)。 Change your IP address accordingly, referring to network structure II as shown down below 详细信息 [高統 CO.1 [确定 ] 取消本地连接4 LAN RAE Internet 已连接 Realtek PCIe GBE F ily Controller 14 | IP 上的址169 54 1”的 Network Structure II 主机B(路由器) 共享模块(172.16.1.1 A172.16.0.1 交换模块 Notice that for host B, you have to change the IP of both“本地连接4 &“本地连接5 共享模块共享模块交换模块主机点主机D 主机C 主机E 主机F 172.16.1.2 172.16.1.3 172.16.1.4 | | 172.16.0.2 172.16.0.3 Subnet 1 Subnet 2 | Description: The default gateway of host A, C, D is 172.16.1.1; and for host E. Fis 172.16.0.1 Dual NIC host, the physical interface on the left is physical interface 1, on the right is physical interface 2 Exercise 2 Special IP address This exercise takes host A, B, C, D, E, F as a group to perform the experiment. 1. Direct broadcast address (1) Host A edits IP datagram 1, among them: Destination MAC address: FFFFFF-FFFFFF. Source MAC address: MAC address of A. Source IP address: The IP address of A. Destination IP address: 172.16.1.255. Custom field data: Fill in user data larger than 1 byte. Checksum: Calculated and populated after other fields have been filled. (2) Host A then edits IP datagram 2, where: Destination MAC address: The MAC address of Host B (corresponding to the MAC of the 172.16.1.1 interface). Source MAC address: MAC address of A. Source IP address: The IP address of A. Destination IP address: 172.16.0.255. Custom field data: Fill in user data larger than 1 byte. Checksum: Calculated and populated after other fields have been filled. (3) The host B, C, D, E, and F start the protocol analyzer and set the filtering conditions (extract the IP protocol, capture all the IP packets received and sent by 172.16.1.2, and set the address filtering conditions as follows: 172.16.1.2<->Any). (4) Hosts B, C, D, E, and F start to capture data. (5) Host A sends these two datagrams at the same time. (6) Hosts B, C, D, E, and F stop capturing data. Record the results of the experiment Table 3-4 Experimental results Host number Received IP datagram 1 Received IP datagram 2 Refer to the experiment results, try to briefly describe the role of direct broadcast addresses. Limited broadcast address (1) Host A edits an IP datagram, where: Destination MAC address: FFFFFF-FFFFFF. Source MAC address: MAC address of A. Source IP address: The IP address of A. Destination IP address: 255.255.255.255. Custom field data: Fill in user data larger than 1 byte. Checksum: Calculated and populated after other fields have been filled. 2. (2) Hosts B, C, D, E, and F restart the protocol analyzer and set the filtering conditions (extract the IP protocol, capture all IP packets received and sent by 172.16.1.2, and set the address filtering conditions as follows: 172.16.1.2<->Any). (3) Hosts B, C, D, E, and F restart data acquisition. (4) Host A sends this datagram. (5) Hosts B, C, D, E, and F stop capturing data. Hosts B, E, and F run the “arp-d” command on the command line to clear the ARP cache. Host E sends the edited ARP packet. • Record the results of the experiment Table 3-5 Experimental results Host number Received the IP datagram sent by host A Received the IP datagram sent by host B Refer to the experiment results, try to briefly describe the role of restricted broadcast addresses. 3. Loopback address (1) The host F restarts the protocol analyzer to start capturing data and setting the filtering conditions (extracting the IP protocol). (2) Host E pings 127.0.0.1. (3) Host F stops capturing data. Has Host F received an IP datagram with the destination address of 127.0.0.1 sent by host E? why? Show transcribed image text Exp02. Internet Protocol (ARP) Purpose 1. Learn the message format of IP datagrams 2. Learn IP checksum calculation method 3. Learn subnet mask and route forwarding 4. Understand the meaning of a special IP address 5. Understand the IP fragmentation process 6. Understand how the protocol stack handles the IP protocol 7. Understand the role of the IP routing table and the management of the IP routing table Experiment Steps This experiment uses Network Structure II as experiment 2 does. Before each host starts the protocol editor to verify the network structure, you have to change the IP ad host within your group.
How to change your IP: oti Sac Orel Vare d rex Este tradit e Fil! FE REF2,447 cises Tacitet Internet Explorer 30 Microsoft Vi TEEPRO 2015.16
LOX 网上邻居文件T) 0 地址0) | ET 查看) 收港(4) 工具 ) 帮助) 0.jp找索文件夹 , 网上邻居计算机网络同路任等一个同上非居查看向连接 BIRU A 其它位置我的車特口北的文档 | 打印机和住五
||||| 网络连接文件 T) E)在着¢) 收圍 (4) 工具 I) 高(0) 帮助) 后退,y) f 撤常位文件夹 · 地址)各连接 LAN 22 Internet 网络任务回创建一个新的生接 VirtualBox Most-Only twork 但改 Nindows 防火嗜设 | elte | GBE Realtek PCIe GBE… 相关主 1 盘戲进样告程序 Not the VirtualBox one And not the crossed one 其它位置口控制面板网上鄰居我的文档了我的电脑 Yes, choose the one that’s left. (For some hosts, the one’s left might be “本地连接S”, So be careful. ) 洋细信息网络连接系统文件喜
DOX 网络连接文件) 痛端2) 查看vo 收来A) 工具) 高級(2) 若助 CHO 后退, 全都素哈文件夹 , 地址)。同路连接转到 ALAN RR Internet 同穿在身创建一个新的连接自更改 Findows防火 VirtualBox Host-Only Network our body “Network 37 本地生接內容由英法找出 Realtek PCIe GBE 禁用F) 状态 U) 修复) 桥接) 禁用此同络设备 0 修訂此连接重命名此生接查着此连接的状态回更改此连接的设置创建快捷方式) 障 ) 重命名W) RRER) 其它位置己控制面板 | 网上和居自我的文档北的电脑 Right click the one you choose and then click “属性(R) 详细信息本地连接 4 LAN 75 Internet 已连接 Realtek PCIe GBE Family Controller #4 IF 地址:169.254.1379
安全配置向导 r sal ” sim a ch Fastles -OX 同轴连接 11月 11 刊的文档 1 all – 本庄长4属性第規者证 | | 连接时使用: ” Real ask PCIe GUE Tamily Centart 我的出院 | 国第往事配置(C) W indows Realtek II. GIT 同上禁用此品後音修工程此连接使用下列項目)。 Link NetBIOS Y ink IPI/SPE/ X TOS Compatible Transpor Internet (TCP/IP) 查看此使用的代表更改此连用的设置 Internet Explorer Ca ] TFITF 是默认的广域以,建們等多种互联 n es JE 生根后在国牛区城里青,) 此主推法来制来无连挂时山992) |验电信 114 LANK Tnternet 推 Restek PCIe GBE Ymily Controller | IP 100 ,137 建国 | | “ 四个 15 19
-OX 网络连接文件)请避L) 查看次 ) 工具) 高布的出 L本地连接4属性 2 x 地址)。座落连接转到 Internet til (TCP/IP) EU 策划如果统支持此功能,则可以获取自动指示的 IT 设黃,否则, 您需要从路系统管理员处获得适当的 IF 设置: 本地连接4 Redtek PCIe GBE… 网络任务创建一个新的连接 8 Windows : 墙设置禁用此各设备修复此连接 mel 重命名此连接查看此连接的状韵口更改此连接的设置 | Q自动获得 IF 地址 @) 使用下面的 IP 地址): IF 地址 ) 子网掩码如: 默认网关D): 116 | S $ 5 ,0 172 .16 ( 其它位置已控制面板网上能居我的文档了我的电脑自动获得DS 觀察器地址 E- 使用下面的 DNS 服务器地址)。首选 DE 服务器 PT: 备用加密服务器 (A)。 Change your IP address accordingly, referring to network structure II as shown down below 详细信息 [高統 CO.1 [确定 ] 取消本地连接4 LAN RAE Internet 已连接 Realtek PCIe GBE F ily Controller 14 | IP 上的址169 54 1”的
Network Structure II 主机B(路由器) 共享模块(172.16.1.1 A172.16.0.1 交换模块 Notice that for host B, you have to change the IP of both“本地连接4 &“本地连接5 共享模块共享模块交换模块主机点主机D 主机C 主机E 主机F 172.16.1.2 172.16.1.3 172.16.1.4 | | 172.16.0.2 172.16.0.3 Subnet 1 Subnet 2 | Description: The default gateway of host A, C, D is 172.16.1.1; and for host E. Fis 172.16.0.1 Dual NIC host, the physical interface on the left is physical interface 1, on the right is physical interface 2
Exercise 2 Special IP address This exercise takes host A, B, C, D, E, F as a group to perform the experiment. 1. Direct broadcast address (1) Host A edits IP datagram 1, among them: Destination MAC address: FFFFFF-FFFFFF. Source MAC address: MAC address of A. Source IP address: The IP address of A. Destination IP address: 172.16.1.255. Custom field data: Fill in user data larger than 1 byte. Checksum: Calculated and populated after other fields have been filled. (2) Host A then edits IP datagram 2, where: Destination MAC address: The MAC address of Host B (corresponding to the MAC of the 172.16.1.1 interface). Source MAC address: MAC address of A. Source IP address: The IP address of A. Destination IP address: 172.16.0.255. Custom field data: Fill in user data larger than 1 byte. Checksum: Calculated and populated after other fields have been filled.
(3) The host B, C, D, E, and F start the protocol analyzer and set the filtering conditions (extract the IP protocol, capture all the IP packets received and sent by 172.16.1.2, and set the address filtering conditions as follows: 172.16.1.2Any). (4) Hosts B, C, D, E, and F start to capture data. (5) Host A sends these two datagrams at the same time. (6) Hosts B, C, D, E, and F stop capturing data. Record the results of the experiment Table 3-4 Experimental results Host number Received IP datagram 1 Received IP datagram 2 Refer to the experiment results, try to briefly describe the role of direct broadcast addresses. Limited broadcast address (1) Host A edits an IP datagram, where: Destination MAC address: FFFFFF-FFFFFF. Source MAC address: MAC address of A. Source IP address: The IP address of A. Destination IP address: 255.255.255.255. Custom field data: Fill in user data larger than 1 byte. Checksum: Calculated and populated after other fields have been filled. 2.
(2) Hosts B, C, D, E, and F restart the protocol analyzer and set the filtering conditions (extract the IP protocol, capture all IP packets received and sent by 172.16.1.2, and set the address filtering conditions as follows: 172.16.1.2Any). (3) Hosts B, C, D, E, and F restart data acquisition. (4) Host A sends this datagram. (5) Hosts B, C, D, E, and F stop capturing data. Hosts B, E, and F run the “arp-d” command on the command line to clear the ARP cache. Host E sends the edited ARP packet. • Record the results of the experiment
Table 3-5 Experimental results Host number Received the IP datagram sent by host A Received the IP datagram sent by host B Refer to the experiment results, try to briefly describe the role of restricted broadcast addresses. 3. Loopback address (1) The host F restarts the protocol analyzer to start capturing data and setting the filtering conditions (extracting the IP protocol). (2) Host E pings 127.0.0.1. (3) Host F stops capturing data. Has Host F received an IP datagram with the destination address of 127.0.0.1 sent by host E? why?