CS1305 Introduction to Computer Technology

Lab: Exploring Internet with Ping, Traceroute, and Nslookup

Name: ______ID: ______

This lab is an exercise for Chapter 9. The purpose of this lab is to get acquainted with Internet activities and basic skills for troubleshooting the networks. Perform each of the following activities and answer each questions. When you have finished all the activities, print out this document with your responses and hand it in.

Activity 1: Find out information about your computer: Start MS-DOS Command Prompt and run command “ipconfig”. Answer the following questions:

-  What is the IP address of your computer?

-  What is the domain suffix of your computer?

-  What is the default router of the network where your computer is in?

-  Ping the default router. Is it active?

Activity 2: Find out information about www.uhd.edu: Ping www.uhd.edu. Answer the following questions:

-  What is the IP address of www.uhd.edu?

-  What is the other name of www.uhd.edu?

-  Ping www.uhd.edu using the other name. What have you found?

-  Ping www.dt.uh.edu. What have you found? Explain the result.

-  Ping www.uh.dt.edu. What have you found? Explain the result.

Activity 3: Domain name resolution with “nslookup”: Run command “nslookup www.uhd.edu” and answer the following questions:

-  What is the IP address of www.uhd.edu? Is it the same as what you have found using “ping”?

-  What is the DNS server?

-  Run command “nslookup” using the IP address of www.uhd.edu as the argument. Do you find the domain name? Is it the same as www.uhd.edu?

Activity 4: Find out the route information: Run command “tracert www.uhd.edu” and answer the following questions:

-  How many hops are there in the route from your computer to www.uhd.edu?

-  Is the default router of your computer in the list of hops?

Activity 5: Explore a site out of the campus: Run command “tracert www.uh.edu” and answer the following questions:

-  What is the domain name of www.uh.edu?

-  Can you find out how many hops in the route from your computer to www.uh.edu? Why?