CS410 - MP1*

Background

PING (Packet InterNet Groper) is a program used to test network connectivity. Ping sends an ICMP Echo Request message to a destination, and reports whether it receives an ICMP Echo Reply as expected.

The Task

Using you recently acquired Unix accounts on mathcssun, you're going to use the ping utility to do some timings to some sites on the Internet. The ping command is usually used to troubleshoot networks but can be used to investigate travel times to access sites.

For our purposes, you will do the following:

1. log onto your Unix account on mathcssun.emporia.edu.
2. Use the ping command to find the average round-trip travel time to the sites provided below. The format of the command is: "/usr/sbin/ping -s _______ 64 10". This command is entered at the $ prompt and will "ping" the site specified in the _____ 10 times with a packet of size 64 bytes. Execute the command for all 10 sites specified below.
3. Also note the URL for the site (the ping command will show this).

Sites to ping (IP's given)

for example, to ping 198.248.128.47 you would enter at the $ prompt:

/usr/sbin/ping -s 198.248.128.47 64 10

What You'll Turn in

• Turn in a list of the IP's and the average round-trip time for a packet. Include the URL for the site as given by ping.
• Any observations about the amount of time required to ping the various sites.