Cisco labs practical7

Lab 9.1.5b Trunking with 802.1q
Objective
• Create a basic switch configuration and verify it.
• Create multiple VLANs, name them, and assign multiple member ports to them.
• Create an 802.1q trunk line between the two switches to allow communication between paired
VLANs.
• Test the VLANs functionality by moving a workstation from one VLAN to another.
Background/Preparation
Trunking changes the formatting of the packets. The ports need to be in agreement as to which
format is being used to transmit data on the trunk or no data will be passed. If there is different
trunking encapsulation on the two ends of the link they will not able to communicate. Similar situation
will occur if one of the ports is configured in trunking mode (unconditionally) and the other one is in
access mode (unconditionally).
When managing a switch, the Management Domain is always VLAN 1. The Network Administrator's
workstation must have access to a port in the VLAN 1 Management Domain. All ports are assigned
to VLAN 1 by default. This lab will also help demonstrate how VLANs can be used to separate traffic
and reduce broadcast domains.
1 - 8 CCNA 3: Switching Basics and Intermediate Routing v 3.1 - Lab 9.1.5b Copyright  2003, Cisco Systems, Inc.

Cable a network similar to one of the diagram. The configuration output used in this lab is produced
from 2950 series switch. Any other switch used may produce different output. The following steps
are intended to be executed on each switch unless specifically instructed otherwise.
Start a HyperTerminal session.
Note: Go to the erase and reload instructions at the end of this lab. Perform those steps on all
switches in this lab assignment before continuing.
Step 1 Configure the switch
Configure the Hostname, access and command mode passwords, as well as the management LAN
settings. These values are shown in the chart. If problems occur while performing this configuration,
refer to the “Basic Switch Configuration lab”. Do not configure VLANs and trunking yet.
Step 2 Configure the hosts attached to the switch
Configure the IP address, mask, and default gateway on each host. Be sure to choose addresses
that are on the same subnet as the switch.
Step 3 Verify connectivity
a. To verify that the host and switch are correctly configured, ping the switch from the hosts.
b. Were the pings successful? __________________________________________________
c. If the answer is no, troubleshoot the host and switches configurations.
Step 4 Display the VLAN interface information
On Switch_A, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_A#show vlan
Note: There should be an entry for VLAN 1 and the default VLANs (1002 +). If other VLANs appear,
they could be deleted as instructed in Step 2 of the Erasing and Reloading instructions at the end of
this lab or refer to the Lab Exercise: Deleting VLAN Configurations.
Step 5 Create and name three VLANs
Enter the following commands to create and name three VLANs:
Switch_A#vlan database
Switch_A(vlan)#vlan 10 name Accounting
Switch_A(vlan)#vlan 20 name Marketing
Switch_A(vlan)#vlan 30 name Engineering
Switch_A(vlan)#exit
Use the show vlan command to verify that the VLANs have been created correctly.
Step 6 Assign ports to a VLAN 10
Assigning ports to VLANs must be done from the interface mode. Enter the following commands to
add ports 0/4 to 0/6 to VLAN 10:
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/4
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10

Switch_A(config-if)#interface fastethernet 0/5
Switch_A(config-if)#end
Step 7 Assign ports to VLAN 20
Enter the following commands to add ports 0/7 to 0/9 to VLAN 20:
Step 9 Create VLANs on Switch_B
Repeat Steps 5 through 9 on Switch_B to create its VLANs
a. On both switches, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_A#show vlan
b. Are ports 0/10 through 0/12 assigned to VLAN 30?
__________________________________________________________________________

Step 11 Test the VLANs
Ping from the host in Switch_A port 0/12 to the host in Switch_B port 0/12.
a. Was the ping successful? ___________________________________________________
b. Why? __________________________________________________________________
Ping from the host in Switch_A port 0/12 to the switch IP 192.168.1.2.
c. Was the ping successful? ___________________________________________________
d. Why? __________________________________________________________________
Step 12 Create the trunk
On both switches, Switch_A and Switch_B, type the following command at the fastethernet 0/1
interface command prompt. Note that it is not necessary to specify the encapsulation on a 2950,
since it only supports 802.1Q.
Switch_A(config-if)#switchport mode trunk
Switch_B(config)#interface fastethernet 0/1
Switch_B(config-if)#switchport mode trunk
Switch_B(config-if)#end
2900:
Switch_A(config)#interface fastethernet0/1
Switch_A(config-if)#switchport trunk encapsulation dot1q
Switch_B(config)#interface fastethernet0/1
Switch_B(config-if)#switchport trunk encapsulation dot1q
Step 13 Verify the trunk
a. To verify that port Fast Ethernet 0/1 has been established as a trunk port, type show
interface fastethernet 0/1 switchport at the Privileged EXEC mode prompt.
b. What type of trunking encapsulation is shown on the output results?
__________________________________________________________________________
c. According to the output with show interface fastethernet 0/1 switchport on
Switch_B, is there a difference from the Administrative Trunking Encapsulation from the
Operational Trunking Encapsulation?
__________________________________________________________________________
d. On the fragment “Trunking VLANs Enable” from the output, what does the word “ALL” mean?
__________________________________________________________________________
e. What would happen if the two ports of the trunk were using different encapsulation? _________
f. Explain _________________________________________________________________

Step 14 Test the VLANS and the trunk
b. Why? __________________________________________________________________
d. Why? __________________________________________________________________
Step 15 Move host.
Move the host in Switch_A from port 0/12 to port 0/8. Wait until the port LED goes green and then go
to the next step.
b. Why? __________________________________________________________________
d. Why? __________________________________________________________________
Step 17 Move host
Move the host in Switch_B from port 0/12 to port 0/7. Wait until the port LED goes green and then go
to the next step.
b. Why? __________________________________________________________________
d. Why? __________________________________________________________________
Step 19 Move hosts
to the next step.

b. Was the ping successful? ___________________________________________________
c. Why? __________________________________________________________________
Step 21 Move host
Move the host in Switch_B from port 0/7 to port 0/3. Wait until the port LED goes green and then go
to the next step.
b. Why? __________________________________________________________________
Ping from the host in Switch_B port 0/3 to the switch IP 192.168.1.2.
d. Why? __________________________________________________________________
Ping from the host in Switch_B port 0/3 to the switch IP 192.168.1.3.
e. Was the ping successful? ___________________________________________________
f. Why? __________________________________________________________________
g. What conclusions can be drawn from the testing that was just performed in regards to VLAN
membership and VLANs across a trunk?
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
Once the steps are complete, logoff by typing exit, and turn all the devices off. Then remove and
store the cables and adapter.

Erasing and Reloading the Switch
For the majority of the labs in CCNA 3 and CCNA 4 it is necessary to start with an unconfigured
switch. Use of a switch with an existing configuration may produce unpredictable results. These
instructions allow preparation of the switch prior to performing the lab so previous configuration
options do not interfere. The following is the procedure for clearing out previous configurations and
starting with an unconfigured switch. Instructions are provided for the 2900, 2950, and 1900 Series
switches.
2900 and 2950 Series Switches
1. Enter into the Privileged EXEC mode by typing enable.
Switch>enable
If prompted for a password, enter class, if that does not work, ask the instructor.
2. Remove the VLAN database information file.
Switch#delete flash:vlan.dat
Delete filename [vlan.dat]?[Enter]
Delete flash:vlan.dat? [confirm] [Enter]
If there was no VLAN file, this message is displayed.
%Error deleting flash:vlan.dat (No such file or directory)
3. Remove the switch startup configuration file from NVRAM.
Switch#erase startup-config
The responding line prompt will be:
Erasing the nvram filesystem will remove all files! Continue? [confirm]
Press Enter to confirm.
The response should be:
Erase of nvram: complete
4. Check that VLAN information was deleted.
Verify that the VLAN configuration was deleted in Step 2 using the show vlan command. If
previous VLAN configuration information (other than the default management VLAN 1) is still
present it will be necessary to power cycle the switch (hardware restart) instead of issuing the
reload command. To power cycle the switch, remove the power cord from the back of the
switch or unplug it. Then plug it back in.
If the VLAN information was successfully deleted in Step 2, go to Step 5 and restart the switch
using the reload command.
5. Software restart (using the reload command)

Note: This step is not necessary if the switch was restarted using the power cycle method.
a. At the Privileged EXEC mode enter the command reload.
Switch(config)#reload
System configuration has been modified. Save? [yes/no]:
b. Type n and then press Enter.
Proceed with reload? [confirm] [Enter]
The first line of the response will be:
Reload requested by console.
After the switch has reloaded, the line prompt will be:
Would you like to enter the initial configuration dialog? [yes/no]:
c. Type n and then press Enter.
Press RETURN to get started! [Enter]
1900 Series Switches
1. Remove VLAN Trunking Protocol (VTP) information.
#delete vtp
This command resets the switch with VTP parameters set to factory
defaults.
All other parameters will be unchanged.
Reset system with VTP parameters set to factory defaults, [Y]es or
[N]o?
Enter y and press Enter.
2. Remove the switch startup configuration from NVRAM.
#delete nvram
This command resets the switch with factory defaults. All system parameters will revert to their
default factory settings. All static and dynamic addresses will be removed.
Reset system with factory defaults, [Y]es or [N]o?

1 - 8 CCNA 3: Switching Basics and Intermediate Routing v 3.1 - Lab 9.2.5 Copyright  2003, Cisco Systems, Inc.
Lab 9.2.5 VTP Client and Server Configurations
Objective
• Create multiple VLANs, name them and assign multiple member ports to them.
• Configure the VTP protocol to establish Server and client switches.
• Create an 802.1q trunk line between the two switches to allow communication between paired
VLANs.
• Then test the VLANs functionality by moving a workstation from one VLAN to another.
to VLAN 1 by default.
Cable a network similar to the one of in diagram. The configuration output used in this lab is
produced from a 2950 series switch. Any other switch used may produce different output. The
following steps are to be executed on each switch unless specifically instructed otherwise.

Configure the hostname, access, and command mode passwords, as well as the management LAN
refer to the Basic Switch Configuration lab.
Configure the IP address, mask, and default gateway on each host. Be sure to choose addresses
that are on the same subnet as the switch.
a. To verify that the host and switch are correctly configured, ping the switch from the hosts.
c. If the answer is no, troubleshoot the host and switches configurations.
On Switch_A, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_A#show vlan
Note: There should be an entry for VLAN 1 and the default VLANs (1002 +). If other VLANs appear,
they could be deleted as instructed in Step 2 of the Erasing and Reloading instructions at the end of
this lab or refer to the Lab Exercise: Deleting VLAN Configurations.
Step 5 Configure VTP
a. VLAN Trunking Protocol (VTP) needs to be configured on both switches. VTP is the protocol that
will communicate information about which VLANs exist from one switch to another. If VTP did
not provide this information, VLANs would have to be created on all switches individually.
b. By default, the Catalyst switch series are configured as VTP servers. In the event that the server
services are turned off, use the following command to turn it back on:
Switch_A(vlan)#vtp server
Switch_A(vlan)#vtp domain group1
Switch_A(vlan)#exit
Step 6 Create and name three VLANs
Enter the following commands to create and name three VLANs:
Switch_A(vlan)#vlan 10 name Accounting
Switch_A(vlan)#vlan 20 name Marketing
Switch_A(vlan)#vlan 30 name Engineering
Switch_A(vlan)#exit
Use the show vlan command to verify that the VLANs have been created correctly.

a. On Switch_A, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_A#show vlan

b. Are ports 0/10 through 0/12 assigned to VLAN 30?
__________________________________________________________________________
Step 11 Configure VTP client
Enter the following commands to configure Switch_B to be a VTP client:
Switch_B#vlan database
Switch_B(vlan)#vtp client
Switch_B(vlan)#vtp domain group1
Switch_B(vlan)#exit
On both switches, Switch_A and Switch_B, type the following command at the fastethernet 0/1
interface command prompt. Note that it is not necessary to specify the encapsulation on a 2950,
since it only supports 802.1Q.
2900:
Switch_B(config)#interface fastethernet0/1
Switch_B(config-if)#switchport trunk encapsulation dot1q
Step 13 Verify the trunk
a. To verify that port fastethernet 0/1 has been established as a trunk port, type show interface
fastethernet 0/1 switchport at the Privileged EXEC mode prompt
b. What type of trunking encapsulation is shown on the output results? ____________________
a. On Switch_B, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_B#show vlan
b. Do VLANs 10, 20, and 30 show without having to type them in? ____________________
c. Why did this happen? ______________________________________________________

Step 15 Assign ports to a VLAN 10
Although the VLAN definitions have migrated to Switch_B using VTP, it is still necessary to assign
ports to these VLANs on Switch_B. Assigning ports to VLANs must be done from the interface mode.
Enter the following commands to add ports 0/4 to 0/6 to VLAN 10.
Switch_B#configure terminal
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 10
Switch_B(config-if)#interface fastethernet 0/5
a. On Switch_B, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_B#show vlan

b. Are ports 0/10 through 0/12 assigned to VLAN 30? _________________________________
b. Why? __________________________________________________________________
d. Why? __________________________________________________________________
Step 20 Move hosts
to the next step.
b. Why? __________________________________________________________________
d. Why? __________________________________________________________________

switches.
Switch>enable

#delete vtp
defaults.
[N]o?
#delete nvram

Lab 9.3.6 Configuring Inter-VLAN Routing
Objective
• Create multiple VLANs, name them and assign multiple member ports to them.
• Create a basic configuration on a router.
• Create an 802.1q trunk line between the switch and router to allow communication between
VLANs.
• Test the routing functionality.
to VLAN 1 by default. This lab will also help demonstrate how VLANs can be used to separate traffic
and reduce broadcast domains.
Cable a network similar to the one in the diagram. The configuration output used in this lab is
produced from a 2950 series switch. Any other switch used may produce different output. The
following steps are to be executed on each switch unless specifically instructed otherwise.
Instructions are also provided for the 2900 and 1900 Series switches. The 1900 Series switch initially
displays a User Interface Menu. Select the “Command Line” option from the menu to perform the
steps for this lab.

Note: The router used must have a Fast Ethernet interface in order to support trunking and inter-
VLAN routing. The 2500 series router cannot be used for this lab.
Configure the hostname, access, and command mode passwords, as well as the management LAN
refer to the Basic Switch Configuration lab.
Configure the hosts using the following information.
a. For the host in port 0/5:
IP address 192.168.5.2
Subnet mask 255.255.255.0
Default gateway 192.168.5.1
b. For the host in port 0/9:
IP address 192.168.7.2
Check to see if the hosts can ping the switch.
a. Ping the switch IP address from the hosts.
c. Why or why not? __________________________________________________
Step 4 Create and name two VLANs
Enter the following commands to create and name two VLANs:
Switch_A(vlan)#vlan 10 name Sales
Switch_A(vlan)#vlan 20 name Support
Switch_A(vlan)#exit
1900:
Switch_A#config terminal
Switch_A(config)#vlan 10 name Sales
Switch_A(config)#vlan 20 name Support
Switch_A(config)#exit

1900:
Switch_A(config)#interface ethernet 0/5
Switch_A(config-if)vlan static 10
Switch_A(config-if)#interface ethernet 0/6
Switch_A(config-if) interface ethernet 0/8#
Switch_A(config-if)#interface fastethernet0/12
1900:
Switch_A(config)#interface ethernet 0/9

a. On Switch_A, type the command show vlan at the Privileged EXEC prompt as follows:
Switch_A#show vlan
b. Are ports assigned correctly? _________________________________________________
On Switch_A, type the following commands at the Fast Ethernet 0/1 interface command prompt.
Note that Ethernet 0/1 and the other access ports on a 1900 switch only support 10 Mbps Ethernet
and cannot be used as trunk ports. The trunk ports (if present) on a 24-port 1900 are typically Fast
Ethernet 0/26 and 0/27.
2900:
1900:
Switch_A(config-if)#trunk on
Step 9 Configure the router
a. Configure the router with the following data. Note that in order to support trunking and inter-
VLAN routing, the router must have a Fast Ethernet interface.
Hostname is Router_A
Console, VTY, and enable passwords are cisco.
Enable secret password is class.
b. Then configure the Fast Ethernet interface using the following commands:
Note: If working with a 1900 switch, replace the “dot1q” encapsulation with “isl” in the following
router configuration commands.
Router_A(config)#interface fastethernet 0/0
Router_A(config-if)#no shutdown
Router_A(config-if)#interface fastethernet 0/0.1
Router_A(config-subif)#encapsulation dot1q 1
Router_A(config-subif)#ip address 192.168.1.1 255.255.255.0

Router_A(config-subif)#end
Step 10 Save the router configuration
Step 11 Display the router routing table
a. Type show ip route at the Privileged EXEC mode prompt.
b. Are there entries in the routing table? ___________________________________________
c. What interface are they all pointing to? __________________________________________
d. Why is there not a need to run a routing protocol? __________________________________
Ping from the host in Switch_A port 0/9 to the host in port 0/5.
b. Why? __________________________________________________________________
Step 13 Move the hosts
a. Move the hosts to other VLANs and try pinging the management VLAN 1.
b. Note the results of the pinging.
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________

switches.
Switch>enable

#delete vtp
defaults.
[N]o?
#delete nvram

Lab 11.2.2a Configuring Extended Access Lists
Objective
• Configure, and apply an extended ACL to permit or deny specific traffic.
• Test the ACL to determine if the desired results were achieved.
Cable a network similar to the one in the diagram. Any router that meets the interface requirements
displayed on the above diagram, such as 800, 1600, 1700, 2500, 2600 routers, or a combination,
may be used. Please refer to the chart at the end of the lab to correctly identify the interface
identifiers to be used based on the equipment in the lab. The configuration output used in this lab is
produced from 1721 series routers. Any other router used may produce a slightly different output.
The following steps are intended to be executed on each router unless specifically instructed
otherwise.
Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab.
Note: Go to the erase and reload instructions at the end of this lab. Perform those steps on the
router in this lab assignment before continuing.
1 - 5 CCNA 2: Routers and Routing Basics v 3.1 - Lab 11.2.2a Copyright  2003, Cisco Systems, Inc.

Step 1 Configure the hostname and passwords on the GAD router
a. On the GAD router, enter the global configuration mode and configure the hostname as shown in
the chart. Then configure the console, virtual terminal and enable passwords. Configure the
FastEthernet interface on the router according to the chart.
b. Allow HTTP access by issuing the ip http server command in global configuration mode.
Step 2 Configure the hosts on the Ethernet segment
a. Host 1
IP address 192.168.14.2
b. Host 2
IP address 192.168.14.3
Step 3 Save the configuration information from the privileged EXEC command mode
GAD#copy running-config startup-config
Step 4 Confirm connectivity by pinging the default gateway from both hosts
a. If the pings are not successful, correct the configuration and repeat until they are successful.
Step 5 Connect to the router using the Web browser
a. From a host, connect to the router using a Web browser to ensure that the Web server function
is active.
Step 6 Prevent access to HTTP (port 80) from the Ethernet interface hosts
a. Create an access list that will prevent Web browsing access to FastEthernet 0 from the
192.168.14.0 network.
b. At the router configuration prompt type the following commands:
GAD(config)#access-list 101 deny tcp 192.168.14.0 0.0.0.255 any eq 80
GAD(config)#access-list 101 permit ip any any
c. Why is the second statement needed? __________________________________________
Step 7 Apply the access list to the interface
a. At the FastEthernet 0 interface mode prompt type:
GAD(config-if)#ip access-group 101 in
Step 8 Ping the router from the hosts
a. Were these pings successful? ________________________________________________
b. If they were, why? _________________________________________________________

Step 9 Connect to the router using the web browser
a. Was the browser able to connect? _____________________________________________
Step 10 Telnet to the router from the hosts
a. Were you able to Telnet successfully? __________________________________________
b. Why or why not? __________________________________________________________
Upon completion of the previous steps, logoff by typing exit. Turn the router off.

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