Network II Lab 03 Part 01: Ping command in simula on mode

Transcription

1 Network II Lab 03 Part 01: Ping command in simula on mode 1. Open the file saved from the previous lab. [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 1 / 18

2 2. add simple packet from client to server 3.open simulation mode [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 2 / 18

3 4. press capture and play, to see animated video contain the packets being exchanged during the ping command. 4. select the first event, the envelop will appear beside client PC, click on it to view layer details of that packet [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 3 / 18

4 5. in OSI model panel, press next/previous layer bu on to view details of each layer [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 4 / 18

5 [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 5 / 18

6 [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 6 / 18

7 6. press challenge me to test yourself [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 7 / 18

8 7. Select outbound PDU details to view packet structure in details [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 8 / 18

9 Part 02: Establishing a Web Server Connection Using the PC s Web browser 1. return to Client/Server cross over connec on 2. click on server1 to view configuration window. 3. select h p service, select h p service on, select file name, and file contents in html code 4. Click on the PC to view the configuration window. [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 9 / 18

10 5. Select the Desktop tab, and then click Web Browser. Type in as the URL and click the Go button. The Packet Tracer welcome page, shown below, appears, indicating that the web connection has been successfully established. 6. now go to server, click on to open configuration window 7. make the following updates to DNS service window [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 10 / 18

11 8. back to client pc, click on to open, add DNS server as shown 9. now on client pc web browser type, [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 11 / 18

12 10. Close the window and try the same steps in Simulation Mode. In this mode, the user controls time, so the network can be viewed running at a slower pace, allowing observation of the paths packets take and inspection of packets in detail (packet tracing!). 11. Select the PC again and go to the Web Browser in the Desktop tab. Type as the URL again and click Go. The welcome page should not appear right away. 12. Switch to the main interface of Packet Tracer without closing the PC configura on window. Notice that a DNS packet is added to the event list. 13. Click Auto Capture/Play or repeatedly click the Capture/Forward bu on un l the HTTP packet appears on the PC. Go back to the PC configuration window. [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 12 / 18

13 14. The Packet Tracer welcome page is now shown. 15. event list now contains the detailed packet exchange process 16. press back multiple times return to the first packet, [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 13 / 18

14 Step 01 : client ask for site name IP (asking DNS server) [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 14 / 18

15 Step 2: server (DNS) receive [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 15 / 18

16 Step 3: DNS server solve name to IP, send it back to client [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 16 / 18

17 Step 03 : HTTP request from client to web server [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 17 / 18

18 Step 4: HTTP response from web server to client [Dr. Ahmed ElShafee, ACU Fall 2011, Network II] 18 / 18