Objectives
Part 1: Establish Basic Connections, Access the CLI, and Explore
Help
Part 2: Explore EXEC Modes
Part 3: Set the Clock
Part 1: Establish Basic Connections, Access the CLI, and Explore Help
Step 1: Connect
PC1 to S1 using a console cable.
a.
Click the Connections
icon (the one that looks like a lightning bolt) in the lower left corner of the
Packet Tracer window.
b.
Select the light blue Console cable by clicking
it. The mouse pointer will change to what appears to be a connector with a
cable dangling from it.
c.
Click PC1.
A window displays an option for an RS-232
connection.
d.
Drag the other end of the console connection to
the S1 switch and click the switch to access the connection list.
e.
Select the Console
port to complete the connection.
Step 2: Establish
a terminal session with S1.
a.
Click PC1
and then select the Desktop tab.
b.
Click the Terminal
application icon. Verify that the Port
Configuration default settings are correct.
c.
Click OK.
d.
The screen that appears may have several
messages displayed. Somewhere on the screen there should be a Press RETURN to get started! message. Press
ENTER.
Step 3 :
Explore the IOS Help.
a.
The IOS can provide help for commands depending
on the level accessed. The prompt currently displayed is called User EXEC, and the device is waiting for a command. The
most basic form of help is to type a question mark (?) at the prompt to display
a list of commands.
S1> ?
b.
At the prompt, type t and then a question mark (?).
S1> t?
c.
At the prompt, type te and then a question mark (?).
S1> te?
Part 2: Explore
EXEC Modes
In Part 2 of this activity, you will switch to privileged EXEC
mode and issue additional commands.
Step 1:
Enter privileged EXEC mode.
a.
At the prompt, type the question mark (?).
S1> ?
b.
Type en and
press the Tab key.
S1> en<Tab>
This is called command completion (or tab completion). When
part of a command is typed, the Tab key
can be used to complete the partial command. If the characters typed are enough
to make the command unique, as in the case of the enable command, the remaining portion of the command is displayed.
Step 1:
Use the clock command.
a.
Use the clock
command to further explore Help and command syntax. Type show clock at the privileged EXEC prompt.
S1# show clock
b.
Use the context-sensitive Help and the clock command to set the time on the
switch to the current time. Enter the command clock and press ENTER.
S1# clock<ENTER>
c.
The “% Incomplete command” message is returned
by the IOS. This indicates that the clock
command needs more parameters. Any time more information is needed, help can be
provided by typing a space after the command and the question mark (?).
S1# clock ?
d.
Set the clock using the clock set command. Proceed through the command one step at a time.
S1# clock set ?
e.
Based on the information requested by issuing
the clock set ? command, enter a time of 3:00 p.m. by using the 24-hour
format of 15:00:00. Check to see if more parameters are needed.
S1# clock set 15:00:00 ?
The output returns a request for more information:
<1-31> Day of
the month
MONTH Month of the
year
f.
Attempt to set the date to 01/31/2035 using the
format requested. It may be necessary to request additional help using the
context-sensitive Help to complete the process. When finished, issue the show clock command to display the clock
setting. The resulting command output should display as:
S1# show clock
*15:0:4.869 UTC Tue Jan 31
2035
g.
If you were not successful, try the following command
to obtain the output above:
S1# clock set 15:00:00 31
Jan 2035
Step 2:
Explore additional command messages.
a.
The IOS provides various outputs for incorrect
or incomplete commands. Continue to use the clock command to explore additional messages that may be
encountered as you learn to use the IOS.
b.
Issue the following command and record the
messages:
S1# cl
S1# clock
S1# clock set 25:00:00
S1# clock set 15:00:00 32
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