Download Lab book For MIS 420 - Clarkson University

IS605: Hands-On Networking Laboratory
Fall 2005
Part I. Network Properties of your Desktop Computer
1. Click on “Start”
2. Choose “Control Panel”
3. Click on “Network and Internet Connections”
4. Click on “Network Connections”
5. Double Click on “Local Area Connection”
6. Click on Support Tab
a. IP addresses
Q1. What is the IP address assigned to your workstation? ______________
Q2. What is the IP address of your “Default Gateway”? _____________
Q3. Your Address Type has been assigned by DHCP. What does that mean?
7. Click on the “Details” Button
b. DNS: Domain name service
Q4. What is (are) the IP address(es) of your DNS Server(s) ?
_____________
_____________
Q5. What is the purpose of the DNS server
c. Physical addresses
Q4. What is the physical address of your workstation? ______________
The physical address is needed for actual physical transmission of data within
your LAN (Local Area Network). IP addresses always have to be “translated” into
actual physical addresses before the transmission can take place. Your desktop
needs to know not only the IP address of its default gateway but also the physical
address of that gateway.
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8. Open the so called command mode window. Click on
start and then run
9. Type “cmd” in the window, the command mode
window with black background should open
10.
Type:
arp –a
Q5. What is the physical address of the default gateway? ______________
11.
Close the command mode window.
12.
Close the “Network Connection Details
Window” if it is still open.
13.
Click on the “General” Tab of the Local Area
Connection Status window.
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14.
Click on the “Properties” Button.
15.
Scroll down the list of items all the way to
the last item “Internet Protocol (TCP/IP).
16.
Double Click on that item
This window allows for manual allocation of IP addresses, as well as manual
specification of Default Gateways and DNS servers. Do not attempt to do any of
that.
17.
Click the ”Cancel” button to exit that
window.
18.
Click the ”Cancel” button to exit the Local
Connection Properties window.
19.
Close all the remaining windows.
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Part II. Exploring the routes to various Internet hosts
1. Click on “Start”
2. Click on “Programs”
3. Choose Program called “VisualRoute 2005”
We will use this application to trace the flow of packets from their source
to their destination. This application will show how many hops
(intermediate routers/networks) the packet requires to reach the
destination host, as well as the average time required for the transmission.
First we will trace the route to the following destination (web server)
www.qwest.com
4. Type the destination address in the address
window as shown:
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You should see several IP addresses. These are the hops being taken to
reach the final address.
Please note that you are using a special utility to learn the IP
addresses of the routers through which your packets are traveling.
To provide an analogy, if you were to send a letter from your home to
your friend’s house, hops are akin to each post office through which
your letter passes writing its post office identification number on a
letter routing slip.
5. Wait until the entire report is done and
answer the following questions
Q1. How many routers in this path are on Clarkson University campus?
________________
Q2. How many hops, in total, did you see? ______
Q3. How many different network providers are in the path from your machine to
the final destination? ______
Q4. What was the average response time for this route? _______
6. Using the edit -> snap as text option save
the report as a text file in notepad
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7. Repeat this trace two more times and
compare the report numbers
Q5. Was the average response time the same for this route in all three reports?
_______ If not, how big was the variation?
Q6. Did the packets follow the same route in all three traces? ______
Using the VisualTrace application, trace the route form the your machine to the
following three locations (Do three traces for each location):

www.derspiegel.de ( a German weekly magazine)

www.varig.com.br (a Brazilian airline)

choose your own ___________________________________
Q7. How many routers in these paths are on Clarkson University campus?
________________
Q8. How many hops, in total, did you see?
www.derspiegel.de: ______
www.varig.com.br :_______
Your Own: _______
Q10. What was the average response time for this route?
www.derspiegel.de: ______
www.varig.com.br :_______
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Your Own: _______
Q11. Was the average response time the same for this route in all three reports?
_______ If not, how big was the variation?
www.derspiegel.de: ______
www.varig.com.br :_______
Your Own: _______
Q12. Did the packets follow the same route in all three traces?
www.derspiegel.de: ______
www.varig.com.br :_______
Your Own: _______
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