Lab VI: Troubleshooting VLAN Configuration
AIM: To troubleshoot the VLAN Configuration.
Pre Requisite: Following are the Pre Requisite for this practical.
 A computer System
 Installed Cisco Packet Tracer v6.0
 A good and stable internet connection
Components: Following components are required to perform this practical.
 PC
 Wire
 2950T-24 Switch
Procedure:
The following steps need to perform to carry out this practical work.
Step 1: First of all we need to arrange the device as shown in the below
screenshots
Step 2: Then I assigned the IP address of all the PCs according to the question.
To do so I clicked on each PC one by one and go to Desktop tab and click on IP
configuration icon.
Step 3: Then I misconfigured the configuration by typing the following command
given in the question in the CLI of Switch 1.
hostname S1
no ip domain-lookup
enable secret class
!
interface range FastEthernet0/1-5
switchport mode trunk
!
interface range FastEthernet0/6-24
shutdown
!
interface Vlan1
no ip address
no ip route-cache
!
interface Vlan56
ip address 192.168.56.11 255.255.255.0
no ip route-cache
!
line con 0
logging synchronous
line vty 0 4
no login
line vty 5 15
password cisco
login
!
End
Step 4: Then I misconfigured the configuration by typing the following command
given in the question in the CLI of Switch 2.
hostname S2
no ip domain-lookup
enable secret class
!
vlan 10,20,30,56
!
interface range FastEthernet0/1-5
switchport trunk native vlan 56
switchport mode access
!
interface range FastEthernet0/6-10
switchport access vlan 30
switchport mode access
!
interface range FastEthernet0/11-17
switchport access vlan 10
switchport mode access
!
interface range FastEthernet0/18-24
switchport access vlan 20
switchport mode access
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
ip address 192.168.56.12 255.255.255.0
no ip route-cache
shutdown
!
line con 0
password cisco
login
line vty 0 4
password cisco
login
line vty 5 15
password cisco
login
!
End
Step 5: Then I misconfigured the configuration by typing the following command
given in the question in the CLI of Switch 3.
hostname S3
no ip domain-lookup
enable secret class
!
vlan 10,20,30
!
interface range FastEthernet0/1-5
switchport trunk native vlan 56
switchport mode trunk
!
interface range FastEthernet0/6-10
switchport mode access
!
interface range FastEthernet0/11-17
switchport mode access
!
interface range FastEthernet0/18-24
switchport mode access
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
no ip route-cache
shutdown
!
interface Vlan56
no ip route-cache
!
line con 0
password cisco
login
line vty 0 4
password cisco
login
line vty 5 15
password cisco
login
!
End
Troubleshooting
Step 6: Then I reconfigured the configuration by typing the following command
given in the question in the CLI of Switch 1 to remove the misconfiguration.
enable
class(password)
conf t
vlan 10
name VLAN0010
vlan 20
name VLAN0020
vlan 30
name VLAN0030
int f0/1
no shutdown
int f0/2
no shutdown
Step 7: Then I reconfigured the configuration by typing the following command
given in the question in the CLI of Switch 2 to remove the misconfiguration.
cisco(password)
enable
class(password)
conf t
int f0/2
switchport access vlan 10
no shutdown
int f0/3
switchport access vlan 20
no shutdown
int f0/4
switchport access vlan 30
no shutdown
int f/0
switchport mode trunk
Step 8: Then I reconfigured the configuration by typing the following command
given in the question in the CLI of Switch 3 to remove the misconfiguration.
cisco(secret password to be enter first)
enable
class(password)
conf t
int f0/2
switchport mode access
switchport access vlan 10
no shutdown
int f0/3
switchport mode access
switchport access vlan 20
no shutdown
int f0/4
switchport mode access
switchport access vlan 30
no shutdown
The troubleshooting is done on basic VLAN configuration. To verify the
configuration whether VTP configuration is working or not just send simple PDU
from one PC to another PC and the result is given below.
From the above observation it is clear that the troubleshooting is successful.
Lab VII: Basic VTP Configuration
AIM: To design a basic VTP Configuration.
Pre Requisite: Following are the Pre Requisite for this practical.
 A computer System
 Installed Cisco Packet Tracer v6.0
 A good and stable internet connection
Components: Following components are required to perform this practical.
 PC
 Wire
 2950T-24 Switch
Procedure:
The following steps need to perform to carry out this practical work.
Step 1: First of all we need to arrange the device as shown in the below
screenshots
Step 2: Then I assigned the IP address of all the PCs according to the question.
To do so I clicked on each PC one by one and go to Desktop tab and click on IP
configuration icon.
Step 2: Then open the CLI of Switch 1 i.e., VTP server in this configuration and
type the following command.
enable
conf t
vlan 30
name Guest
Vlan 10
name Faculty/Staff
vlan 20
name Students
exit
exit
#show vlan brief
conf t
vtp domain abc.com
vtp mode server
vtp password 12345
vtp version 2
exit
conf t
int f0/1
switchport mode trunk
int f0/2
switchport mode trunk
Step 3: Now open the CLI of Switch 2 i.e., VTN client in this configuration and
type the following command.
enable
conf t
vtp domain abc.com
vtp mode client
vtp password 12345
interface FastEthernet0/2
switchport access vlan 10
exit
interface FastEthernet0/3
switchport access vlan 20
exit
interface FastEthernet0/4
switchport access vlan 30
Step 4: Now open the CLI of Switch 3 i.e., VTN client in this configuration and
type the following command.
enable
conf t
vtp domain abc.com
vtp mode client
vtp password 12345
interface FastEthernet0/2
switchport access vlan 10
exit
interface FastEthernet0/3
switchport access vlan 20
exit
interface FastEthernet0/4
switchport access vlan 30
The configuration is done for basic VTP configuration. To verify the configuration
whether VTP configuration is working or not just send simple PDU from one PC
to another PC and the result is given below.
From the above observation it is clear that the basic VTN configuration is
successful.