Lab - Building a Switch and Router Network
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Device
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Interface
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IP Address
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Subnet Mask
|
Default Gateway
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|
R1
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G0/0
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192.168.0.1
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255.255.255.0
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N/A
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G0/1
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192.168.1.1
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255.255.255.0
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N/A
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|
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PC-A
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NIC
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192.168.1.3
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255.255.255.0
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192.168.1.1
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PC-B
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NIC
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192.168.0.3
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255.255.255.0
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192.168.0.1
|
Objectives
Part 1: Set Up the Topology and Initialize
Devices
Part 2: Configure Devices and Verify
Connectivity
Part 3: Display Device Information
Background / Scenario
This is a comprehensive lab to review previously
covered IOS commands. In this lab, you will cable the equipment as shown in the
topology diagram. You will then configure the devices to match the addressing
table. After the configurations have been saved, you will verify your
configurations by testing for network connectivity.
After the devices have been configured
and network connectivity has been verified, you will use IOS commands to
retrieve information from the devices to answer questions about your network
equipment.
This lab provides minimal assistance with
the actual commands necessary to configure the router. Test your knowledge by
trying to configure the devices without referring to the content or previous
activities.
Note: The routers used with CCNA hands-on labs
are Cisco 1941 Integrated Services Routers (ISRs) with Cisco IOS Release 15.2(4)M3
(universalk9 image). The switches used are Cisco Catalyst 2960s with Cisco IOS Release
15.0(2) (lanbasek9 image). Other routers, switches, and Cisco IOS versions can
be used. Depending on the model and Cisco IOS version, the commands available
and output produced might vary from what is shown in the labs. Refer to the Router Interface
Summary Table at the end of this lab for
the correct interface identifiers.
Note: Ensure that the routers and switches have been
erased and have no startup configurations. Consult with your instructor for the
procedure to initialize and reload a router and switch.
Required Resources
·
1 Router (Cisco 1941 with Cisco
IOS Release 15.2(4)M3 universal image or comparable)
·
1 Switch (Cisco 2960 with Cisco
IOS Release 15.0(2) lanbasek9 image or comparable)
·
2 PCs (Windows 7 or 8 with
terminal emulation program, such as Tera Term)
·
Console cables to configure the
Cisco IOS devices via the console ports
·
Ethernet cables as shown in the
topology
Note: The Gigabit Ethernet interfaces on Cisco 1941 routers are autosensing
and an Ethernet straight-through cable may be used between the router and PC-B.
If using another model Cisco router, it may be necessary to use an Ethernet
crossover cable.
Part 1:
Set Up Topology and Initialize
Devices
Step 1:
Cable the network as shown in
the topology.
a.
Attach the devices shown in the
topology diagram, and cable, as necessary.
b.
Power on all the devices in the
topology.
Step 2:
Initialize and reload the router
and switch.
If configuration files were previously
saved on the router and switch, initialize and reload these devices back to
their basic configurations.
Part 2:
Configure Devices and Verify
Connectivity
In Part 2, you will set up the network
topology and configure basic settings, such as the interface IP addresses,
device access, and passwords. Refer to the Topology and Addressing Table at
the beginning of this lab for device names and address information.
Step 1:
Assign static IP information to
the PC interfaces.
a.
Configure the IP address, subnet
mask, and default gateway settings on PC-A.
b.
Configure the IP address,
subnet mask, and default gateway settings on PC-B.
c.
Ping PC-B from a command prompt
window on PC-A.
Why were the pings not successful?
__________The router faces, default gateways, have not been configured __________________________________________________________________________
Step 2:
Configure the router.
a.
Console into the router and
enable privileged EXEC mode.
b.
Enter configuration mode.
c.
Assign a device name to the
router.
d.
Disable DNS lookup to prevent
the router from attempting to translate incorrectly entered commands as though they
were host names.
e.
Assign class as the privileged EXEC encrypted password.
f.
Assign cisco as the console password and enable login.
g.
Assign cisco as the VTY password and enable login.
h.
Encrypt the clear text
passwords.
i.
Create a banner that warns
anyone accessing the device that unauthorized access is prohibited.
j.
Configure and activate both
interfaces on the router.
k.
Configure an interface
description for each interface indicating which device is connected to it.
l.
Save the running configuration
to the startup configuration file.
m.
Set the clock on the router.
Note: Use the question mark (?)
to help with the correct sequence of parameters needed to execute this command.
n.
Ping PC-B from a command prompt
window on PC-A.
Were the pings successful? Why?
_____yes the router is routing ping traffic across the two
subnets_______________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
Part 3:
Display Device Information
In Part 3, you will use show commands to retrieve information
from the router and switch.
Step 1:
Retrieve hardware and software
information from the network devices.
a.
Use the show version command to answer the following questions about the
router.
What is the name of the IOS image that
the router is running?
________________ c1900-universalk9-mz.SPA.152-4.M6a.bin ____________________________________________________________________
How much DRAM memory does the router
have?
________________ 487424K/36864K ____________________________________________________________________
____________________________________________________________________________________
How much NVRAM memory does the router have?
________________255K____________________________________________________________________
How much Flash memory does the router
have?
______________ 255488K ______________________________________________________________________
b.
Use the show version command to answer the following questions about the
switch.
What is the name of the IOS image that
the switch is running?
_____________ c2960-lanbasek9-mz.122-53. _______________________________________________________________________
How much dynamic random access memory (DRAM)
does the switch have?
_______________ 65536K _____________________________________________________________________
How much nonvolatile random-access memory
(NVRAM) does the switch have?
_________________________64K___________________________________________________________
What is the model number of the switch?
______________ WS-C2960-24TT-L ______________________________________________________________________
Step 2:
Display the routing table on
the router.
Use the show ip route command on the router to answer the following
questions.
What code is used in the routing table to
indicate a directly connected network? _C__ and L__
How many route entries are coded with a C
code in the routing table? ___ 192.168.0.0/24 ______
What interface types are associated to
the C coded routes?
_______________ GigabitEthernet0/0 ________________________________________________________________________
Step 3:
Display interface information
on the router.
Use the show interface g0/1 to answer the following questions.
What is the operational status of the G0/1
interface?
_________________________ GigabitEthernet0/1 is
administratively down ______________________________________________________________
What is the Media Access Control (MAC) address
of the G0/1 interface?
___________________________ bia f07f.0624.0c61 ____________________________________________________________
How is the Internet address displayed in
this command?
_____________________192.168.1.1/24__________________________________________________________________
Step 4:
Display a summary list of the interfaces
on the router and switch.
There are several commands that can be
used to verify an interface configuration. One of the most useful of these is
the show ip interface brief command.
The command output displays a summary list of the interfaces on the device and
provides immediate feedback to the status of each interface.
a.
Enter the show ip interface brief command on the router.
R1# show
ip interface brief
Interface IP-Address OK? Method Status Protocol
Embedded-Service-Engine0/0 unassigned YES unset
administratively down down
GigabitEthernet0/0 192.168.0.1 YES manual up up
GigabitEthernet0/1 192.168.1.1 YES manual up up
Serial0/0/0 unassigned YES unset
administratively down down
Serial0/0/1 unassigned YES unset
administratively down down
R1#
b.
Enter the show ip interface brief command on the switch.
Switch# show ip interface brief
Interface IP-Address OK? Method Status Protocol
Vlan1 unassigned YES
manual up up
FastEthernet0/1 unassigned YES unset
down down
FastEthernet0/2 unassigned YES unset
down down
FastEthernet0/3 unassigned YES unset
down down
FastEthernet0/4 unassigned YES unset
down down
FastEthernet0/5 unassigned YES unset
up up
FastEthernet0/6 unassigned YES unset
up up
FastEthernet0/7 unassigned YES unset
down down
FastEthernet0/8 unassigned YES unset
down down
FastEthernet0/9 unassigned YES unset
down down
FastEthernet0/10 unassigned YES unset
down down
FastEthernet0/11 unassigned YES unset
down down
FastEthernet0/12 unassigned YES unset
down down
FastEthernet0/13 unassigned YES unset
down down
FastEthernet0/14 unassigned YES unset
down down
FastEthernet0/15 unassigned YES unset
down down
FastEthernet0/16 unassigned YES unset
down down
FastEthernet0/17 unassigned YES unset
down down
FastEthernet0/18 unassigned YES unset
down down
FastEthernet0/19 unassigned YES unset
down down
FastEthernet0/20 unassigned YES unset
down down
FastEthernet0/21 unassigned YES unset
down down
FastEthernet0/22 unassigned YES unset
down down
FastEthernet0/23 unassigned YES unset
down down
FastEthernet0/24 unassigned YES unset
down down
GigabitEthernet0/1 unassigned YES unset
down down
GigabitEthernet0/2 unassigned YES unset
down down
Switch#
Reflection
1.
If the G0/1 interface showed
administratively down, what interface configuration command would you use to
turn the interface up?
___________________no shutdown ____________________________________________________________________
2.
What would happen if you had
incorrectly configured interface G0/1 on the router with an IP address of
192.168.1.2?
________PC-A would not be able to ping PC-B because PC-B is on a
different network than PC-A which requires the default gateway router to route
these._______________________________________________________________________________
_______________________________________________________________________________________
|
Router Interface Summary
|
||||
|
Router Model
|
Ethernet Interface #1
|
Ethernet Interface #2
|
Serial Interface #1
|
Serial Interface #2
|
|
1800
|
Fast Ethernet 0/0 (F0/0)
|
Fast Ethernet 0/1 (F0/1)
|
Serial 0/0/0 (S0/0/0)
|
Serial 0/0/1 (S0/0/1)
|
|
1900
|
Gigabit Ethernet 0/0 (G0/0)
|
Gigabit Ethernet 0/1 (G0/1)
|
Serial 0/0/0 (S0/0/0)
|
Serial 0/0/1 (S0/0/1)
|
|
2801
|
Fast Ethernet 0/0 (F0/0)
|
Fast Ethernet 0/1 (F0/1)
|
Serial 0/1/0 (S0/1/0)
|
Serial 0/1/1 (S0/1/1)
|
|
2811
|
Fast Ethernet 0/0 (F0/0)
|
Fast Ethernet 0/1 (F0/1)
|
Serial 0/0/0 (S0/0/0)
|
Serial 0/0/1 (S0/0/1)
|
|
2900
|
Gigabit Ethernet 0/0 (G0/0)
|
Gigabit Ethernet 0/1 (G0/1)
|
Serial 0/0/0 (S0/0/0)
|
Serial 0/0/1 (S0/0/1)
|
|
Note: To find out how the router is configured, look at the interfaces
to identify the router type and how many interfaces the router has. There is
no way to effectively list all the combinations of configurations for each
router class. This table includes identifiers for the possible combinations
of Ethernet and Serial interfaces in the device. The table does not include
any other type of interface, even though a specific router may contain one.
An example of this might be an ISDN BRI interface. The string in parenthesis
is the legal abbreviation that can be used in Cisco IOS commands to represent
the interface.
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