Skip to main content

VLAN CONFIGURATION

 

 CISCO SWITCHECLI INTERFACE HIS 3 MODE

1.USER MODE
                            switch>
2. ENABLE MODE
                                    switch#
3. CONFIGURATION TERMINAL MODE
                                                                           switch(config)#

_________________________

WHEN FIRST TIME ROUTER HIS OPEN THE FIST MODE HIS APPEARS

   switch>   AND WHEN TO ENABLE MODE TO ENTER    switch> enable

SEE  TO ENABLE MODE    switch#

AND WHEN TO CONFIGURATION MODE TO ENTER  switch# config t

AND SEE THE CONFIGURATION MDE  switch(config)#

_______________________

THE PURPOSE OF ENABLE MODE IS ALL THE CONFIGURATION YOU PERFORMS A SWITCH TO SEE IT AND ANY IP PING IN ENABLE MODE
AND CHECK COMMUNICATION.

THE PURPOSE OF CONFIGURATION TERMINAL MODE ALL THE PROTOCOLS AND CONFIGURATION POERFORMED HIS MODE.

_________________________

 WHAT IS VLAN 

DEVIDED SINGLE BROADCAST DOMAIN INTO LOGICALLY  MULTYPAL BROADCAST DOMAINS IS CALLED VLAN.

THE VIRTUAL LOCAL AREA NATWORK IS LAN CONFIGURED NOT BY PHYSICAL WIRING LIKE CONVENTIONAL LAN BUT IS CONFIGURED BY SWITCHES.

THERE ARE 32 BITS IN A VLAN HEADER. THIS IS BROKEN DOWN AS FOLLOWS:

TPID (TAG PROTOCOL IDENTIFIER): 16 BITS

PCP (PRIORITY CODE POINT): 3 BITS

DEI (DROP ELIGIBLE INDICATOR): 1 BIT

VID (VLAN IDENTIFIER): 12 BITS



BENEFIT OF VLAN
1. SECURITY PURPOSE.

2. CONTROLL BROADCASTING.

ADDVANTAGES OF VLAN

1. REDUCTION IN COST

2. SAVING OF TIME REQURID FOR REWIRING

3. VLAN PROVIDES ADDITIONAL SECURITY

4. THE MESSAGE BROADCAST INONE GROUP CANNOT BE LISTEN BY ANOTHER GROUPS.

________________________________________

CONFIGURATION VLAN 

FIRST STEP

GO TO SWITCH CLI INTERFACE

WE WILL  CONFIGURED VLAN THIS BASED ON YOUR COMPUTER PORTS ATTACHED ON A SWITCH.

WE WILL CONFIGURED VLAN'S

VLAN 10      NAME IT   PORTS ASSIGN inter fa0/1-3

VLAN 20   NAME  HR  PORT ASSIGN  inter fa0/4-7

VLAN 30   NAME SALE   PORT ASSIGN   inter fa0/8-10

SECOND STEP

COMMUNICATION BETWEEN VLAN 10 VLAN 20 AND VLAN 30

__________________________________

FIRST STEP


CONFIGURE VLAN COMMANDS

GO TO SWITCH CONFIGURATION MODE

Switch(config)#  Vlan 10
Switch(config)#  name it
Switch(config)#  vlan 20
Switch(config)#   name hr
Switch(config)#   vlan 30
Switch(config)#   name sale
Switch(config)#  inter range fa0/1-3
Switch(config-if-range)#  switchport mode access
Switch(config-if-range)#   switchport access vlan 10
Switch(config-if-range)#   inter range fa0/4-7
Switch(config-if-range)#   switchport mode access
Switch(config-if-range)#    switchport access vlan 20
Switch(config-if-range)#   inter range fa0/8-10
Switch(config-if-range)#    switchport mode access
Switch(config-if-range)#    switchport access vlan 30

SEE THE VLAN GO TO SWITCH ENABLE MODE AND ENTER THE COMMAND

Switch# show vlan


TO SEE CONFIGURED THE VLAN'S. BUT DIFFERENT VLAN'S PC CANNOT COMMINICATION BETWEEN THEM.

GO TO  VLAN 30  LAPTOP AND CLICK DESKTOP AND GO TO COMMAND PORMOT

WE PING THE VLAN 10  PC AND VLAN 30 LAPTOP  IP IS 192.168.1.2 AND 192.168.1.9

SO ENTER THE COMMAND 

 C:\> PING 192.168.1.2

SECOND STEP

COMMUNICATION BETWEEN VLAN 10 VLAN 20 AND VLAN 30
AGEN GO TO SWITCH CLI INTERFACE AND ENTER THE COMMAND.

Switch(config)#  inter range fa0/1-10

Switch(config-if-range)#  switchport mode trunk 


AND AGAIN PING SAME VLAN 10 AND VLAN 30 DEVICES


 C:\> PING 192.168.1.2



COMPLETE THE ALL STEPS AND DONE THE CONFIGURATION.

______________________________________







Comments

Post a Comment

Popular posts from this blog

TCP/IP MODEL

  HISTORY OF TCP/IP MODEL THE TCP/IP MODEL WAS DEVELOPED BY VINT CERF AND BOB KAHN IN THE 1970S. THEY WERE BOTH WORKING AT THE DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) AT THE TIME. Vint Cerf And Bob Kahn CERF AND KAHN WERE TASKED WITH DEVELOPING A NEW NETWORK PROTOCOL THAT WOULD BE MORE RELIABLE AND EFFICIENT THAN THE EXISTING PROTOCOLS. THEY CAME UP WITH THE IDEA OF USING A LAYERED APPROACH, WHICH WOULD ALLOW EACH LAYER TO FOCUS ON A SPECIFIC TASK. THIS LED TO THE DEVELOPMENT OF THE TCP/IP MODEL, WHICH IS STILL THE BASIS FOR HOW DATA IS TRANSMITTED OVER THE INTERNET TODAY. CERF AND KAHN ARE OFTEN REFERRED TO AS THE "FATHERS OF THE INTERNET" FOR THEIR WORK ON THE TCP/IP MODEL. THEY WERE INDUCTED INTO THE NATIONAL INVENTORS HALL OF FAME IN 2004 FOR THEIR CONTRIBUTIONS TO THE DEVELOPMENT OF THE INTERNET. HERE ARE SOME OTHER NOTABLE PEOPLE WHO CONTRIBUTED TO THE DEVELOPMENT OF THE TCP/IP MODEL: JON POSTEL: POSTEL WAS THE FIRST CHAIRMAN OF THE INTERNET ENGINEERI...
Post a Comment
Read more

Types Of Attack in Network

Common Network Attacks Explained. 1. Overwhelming a Network (DoS/DDoS): Imagine a restaurant that's flooded with too many customers. In a DoS/DDoS attack: A website is overwhelmed with too much traffic. 2. Eavesdropping on Conversations (MitM): Imagine someone listening in on your phone call. In a MitM attack: An attacker listens to your online conversations. 3. Tricking You (Phishing): Imagine receiving a fake email from your bank. In phishing: Attackers try to trick you into giving them your personal information. 4. Finding a Weakness in a Website (SQL Injection): Imagine finding a hole in a fence. In an SQL injection attack: An attacker finds a weakness in a website to steal or change data. 5. Planting a Hidden Camera (XSS): Imagine someone hiding a camera in a party. In an XSS attack: An attacker hides harmful code on a website to spy on you. 6. Guessing Your Password (Password Attck): Imagine trying to guess a friend's password. In a pas...
Post a Comment
Read more

OSI Refrance Model

OSI MODEL 1. THE OSI MODEL WAS DEVELOPED BY THE INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) IN THE LATE 1970S. THE MAIN ARCHITECT OF THE OSI MODEL WAS HUBERT ZIMMERMANN, A FRENCH SOFTWARE ENGINEER. 2.  ISO REPRESENT A 1947 MORE THAN WORK AND AGAIN REPRESENTS A ISO IN 1977 AND MORE THAN WORK AN REPRESENT  IN 1983 A OSI REDFRENCE MODEL. 2. HIS MODEL REPRESENT A 7 LAYER 3. OSI MEANS  (OPEN SYSTEMS INTERCOMMUNICATIO). 1. APPLICATION LAYER 1. THE APPLICATION LAYER IS USED BY END-USER SOFTWARE SUCH AS WEB BROWSERS AND EMAIL CLIENTS.  IT PROVIDES PROTOCOLS THAT ALLOW SOFTWARE TO SEND AND RECEIVE INFORMATION AND PRESENT MEANINGFUL DATA TO USERS. 2.  IT SENDS ITS DATA TO THE FORM OF THE  PDU. PROTOCLS  AND DEVICES USED IN LAYER THERE ARE SOME PROTOCOLS THAT WORK AT THE BACKEND OF THE APPLICATION LAYER. WHICH IN TURN WORKS AT THE APPLICATION LAYER. MANY DEVICES USE IT AT THE APPLICATION LAYER. PROTOCOLS FTP  (FILE TRANSOFER PROTOCOL) DNS (DOMA...
Post a Comment
Read more