lab week 4
Description
Unformatted Attachment Preview
VistStumbler (available at http://www.Vistumbler.com/)
Nmap (available at https://www.vistumbler.net/
Problem Description
In this lab, you will learn how to detect an access point using a wireless card and NetSumbler. In
addition, you will learn how to detect an access point using a wired connection and Nmap.
Estimated completion time: 60 minutes.
Outcome
Report the steps for performing the task above.
Validation/Evaluation
etect a wireless access point with NetStumbler
etect a wireless access point with Nmap
Lab Solution
1. Download NetStumbler from http://www.netstumbler.com/ and install it on your
computer.
2. Start NetStumbler. NetStumbler will automatically scan for all available networks and list
the results.
3. NetStumbler lists the following information for each network:
a. MAC
b. SSID
c. Name
d. Channel
e. Speed
f. Vendor (Manufacturer)
g. Type
h. Encryption
i. Signal-to-noise ratio (SNR)
j. Signal level
k. Noise level
l. IP Address
m. Subnet
n. Latitude
o. Longitude
p. First seen
q. Last seen
r. Flags
s. Beacon interval
t. Distance
4. You can filter the list of available networks based on a specific characteristic. For
example, expand the Filters tree on the left panel and select the ESS (AP) option to
display only access point devices.
5. Now, download the Nmap for Windows ZIP file from http://insecure.org/ and extract it
on C:nmap.
6. Open a new command prompt window and go to C:nmap.
7. Type nmap -sP -v your_network_address and press Enter to scan for all live hosts on
your subnet. Nmap will display the vendor name and the MAC address of each live host.
8. By inspecting the list, you might be able to spot live hosts that look like APs. For
example, in our case, the host 192.168.1.1 is a Cisco-Linksys device. Cisco and Linksys
are common manufacturers of APs.
9. Type nmap -sS -A target_IP_address and press Enter to display more information about a
particular host. You can also specify a range of IP addresses instead of a single one.
10. From the information displayed by Nmap, you can conclude that the scanned host is
indeed a Linksys WRTSL54G wireless AP and router.
11. Note that Nmap can only list access points that are attached to the same network as the
computer running Nmap. NetStumbler, on the other hand, can list all APs that are
wirelessly in range of the scanning computer.
12. Close all windows.
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