Configure VLANS in Cisco packet tracer

VLAN is a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because VLANs are based on logical instead of physical connections, they are extremely flexible.

Basic commands used:

Ping : you can send ICMP request to destination and wait for response. 

enable: To enter privileged Exec mode or any other security level.

exit: to close an active terminal.

 Procedure:

1. Create a network diagram with 4 pcs.
• select end device option and drag two generic pcs in to the work space.
• click on the pcs and configure the IP Address of them.
• for ex : pc1 : IP =192.100.162.10
2. Connect all the pcs using copper straight wire to the switch. as shown in the figure in fast ethernet port.
   
   
   
3. Configure the switch using the following caomnds in cci.
• router> en
• # config t
• (config)# int fa 0/1
• (config -if) vlan 2
• (config -vlan)#exit
• (config)# int fa 0/3
• (config -if) vlan 3
• (config -vlan)#exit
• similarly configure other connections.
4. Now go to command prompt and use ping IP address to trace the packets.
   

Configuration of router in cisco packet tracer

Routers: A router is a network device that forwards data packets  between computer network. Routers perform the traffic directing functions on the internet . Data sent through the internet, such as a web page or email, is in the form of data packets. A packet is typically forwarded from one router to another router through the networks that constitute an internetwork until it reaches its destination node.

How to configure a router in cisco packet tracer?

fig 1: router configuration.

• the figure has two routers (namely 1910). taken from the tool box.
• the HWC2t port is configured by double clicking on the router and dragging the module present on the right on the router. While the router is off
• 
• connect the router using DCE serial cable.
• now drag and drop switches and pcs
• connect switches and pcs using copper straight wires in the fast ethernet ports.
• provide pc with ip address and gateway to the pcs.
• add IP address to the pc by double clicking on the pc and going to IP configuration mode.
• 
  
  
  
  
• connect routers and switches using Gigabit port.
• Configuration of routers :
• enable  (enables the router.)
• >router # config t       (enters into configuration mod)
• (#config ) Interface gig 0/1    (enter into interfacing gig port 0/1).
• #(config-if)IP add 192.168.100.10 255.255.255.0 (assign ip address to the network )
• #(config -if) no shut (exit out from the config mode).
• similarly for all the routers.
• after this config the wire turn green. that means connection is verified.
• configuring the serial ports of the routers:
• #interface Serial0/1/0
  Router(config-if)#ip address 192.162.100.10 255.255.255.0
  Router(config-if)#ip address 192.162.100.10 255.255.255.0
  Router(config-if)#no ip address
  no shut.
• similarly for the other router.

The packets can be verified using the ping command in command prompt.