Wireshark is an open source packet analyzer software that captures network packets and displays detailed protocol information to help network administrators troubleshoot problems, security engineers examine security issues, and developers debug protocols. The document provides step-by-step instructions on downloading, installing, and using Wireshark to capture packets from a network interface and find specific packet information.

1. Wireshark Protocol Analyzer
A protocol analyzer, sometimes called a packet
sniffer, is a monitoring device or a computer with
monitoring software that captures each packet to
decode and analyze its contents.
Wireshark is an open source packet analyzer that
will capture network packets and display that packet
with very detailed protocol information. Network
administrators can use it to troubleshoot network
problems. Network security engineers can use it to
examine security problems. Developers may use it
to debug protocol implementations. Some people
may use it to learn network protocol internals.
Open your internet browser and type in the current
URL www.wireshark.org

2. Click on Download Wireshark.

3. Click on Windows Installer (32 bit).
Click on Save.

4. In the Save As dialog box, click Save to a location
such as your desktop.
Wait for the file to download.

5. After Download Complete appears, click Run.
In the IE Security Warning window, click Run.

6. In the User Account Control window, click Allow.
Close this window.

7. Click Next.
Click I Agree.

8. Click Next.
Click Next.

9. Choose your install location, click Next.
Click Install.

10. Click Next.
Click Next.

11. Click I Agree.
Click Next.

12. Click Finish.
Click Next.

13. Place a checkmark next to Run Wireshark 1.8.0
(32-bit) then click Finish.
Click the Capture menu, and select Interfaces.

14. Put a check in this box. Click Start.
You will now see packets captured.

15. You can view usernames, passwords, and other
information using Wireshark.
Open an internet browser and enter the URL
www.yahoo.com then search for the word treasure.
Return to Wireshark and Click Edit and Find Packet

16. Click String, after Filter enter Treasure, click Find.
Treasure is found on a page that was just visited.

17. Double-click on the highlighted packet for more
information.
Click the capture menu and select Stop.