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Step 1: Three different
kinds of addresses
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- Go
to the DOS / Command prompt and use nslookup to determine the
IP address of www.udayton.edu
- What
Class of IP address is this?
- Now
use nslookup
to determine the host name of 168.26.193.209
- What
class of IP
address is 168.26.193.209?
- Now
use nslookup
to determine the IP address of www.mit.edu
- What
Class of IP address is this?
- Enter
arp –a
at the command prompt. What are the two different numbers?
- Enter
ipconfig
at the command prompt. What did you discover?
- Enter
ipconfig –all at the command prompt.
What did you discover?
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Step 2: Exploring
cyberspace
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- Use
the ping command to determine if the
following computers are “alive”:
- jaring.ColumbusState.edu
- jaring2.ColumbusState.edu
- cpsc.ColumbusState.edu
- Use
the tracert
command to determine the route to the following computers:
- cpsc.ColumbusState.edu
- www.jaring.my
- www.waikato.ac.nz
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Step 3: More about IP
addresses
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- What is the binary of 168.26.194.47?
(hint – each decimal number is 8 bits)
- What is the decimal
equivalent of the binary number found above? (hint – use the scientific
calculator in Windows)
- Enter the decimal
number in your web browser. What page did you connect to?
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Step 4: More TCP/IP
utilities
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- Use
the telnet program to connect
to cs.ColumbusState.edu from the Command prompt. What happened?
- Now
telnet to cs.ColumbusState.edu at
port 80 from the Command prompt. Press the enter key twice. What
happened? Explain.
- Now
telnet to cs.ColumbusState.edu at
port 80 from the Command prompt. Type
GET /defaultIE.asp HTTP/1.1 Press the
enter key twice. What happened? Explain.
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