OSPF protocol configuration in cisco packet tracer

The OSPF (Open Shortest Path First) protocol is one of a family of IP Routing protocols, and is an Interior Gateway Protocol (IGP) for the Internet, used to distribute IP routing information throughout a single Autonomous System (AS) in an IP network.

Fig 1:Ospf config

Procedure:

1.      Define the following topology in cisco packet tracer.

2.      Assign IP addresses to the network devices:

      3 . configure router interfaces and switch ports:

For router 0:

Router(config)#int gig 0/1

Router(config-if)#ip add 10.0.0.2 255.0.0.0

Router(config-if)#no shut

Router(config)#interface Serial0/1/0

Router(config-if)#ip address 192.168.1.1 255.255.255.0

Router(config-if)#ip address 192.168.1.1 255.255.255.0

Router(config-if)#no shutdown

Similarly for router 2 as per the given iage below.

Opsf configuration step:

To configure OSPF routing protocol on the above-mentioned topology, you need to perform the following steps.

Router(config)#router ospf <process id 1-65535>

Router(config-router)network <network address> <wild card mask> area <0-4294967295>

1.    Move on to Router1 and execute the following commands to specify the OSPF network and area.

2.    Router1(config)#router ospf 200

3.    Router1(config-router)#network 10.0.0.0 0.255.255.255 area 0

4.    Router1(config-router)#network 192.168.1.0 0.0.0.255 area 0.0.0.0

Router1(config-router)#exit

 Similary for router 2 has to be done .

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.

Cisco Packet Tracer

CISCO Packet tracer is a cross platform visual tool for stimulation  designed by cisco up holding students to learn CCNA concepts free of charge .It allows students to design complex and large networks which is not feasible with the use of physical hardware ,often due to  high cost.
Packet tracer help innovate and design network topologies using drag and drop of network devices with minimal use of coding.

Packet Tracer workspace

The packet tracer has workspaces logical and physical, the logical space helps the user to find  logical network topologies and connect virtual devices and networks.

Menu bar provides file edit , options view and tools. you can access the activity wizard from extension menu.
Tool bar has shortcuts to file and edit options . At the right you can find network information which you can enter the description of current network here.

How to download cisco packet tracer:
go to the following link:https://www.netacad.com/courses/packet-tracer-download/?p_auth=h6jOI2lZ&p_p_auth=iJXrHgDA&p_p_id=resendscreenname_WAR

In order to download Packet Tracer, follow these steps to create your Networking Academy registration:

• Click the 'Enroll to Download Packet Tracer' button
• Enroll in the Intro to Packet Tracer Course
• Complete your Networking Academy registration
• Launch the Intro to Packet Tracer Course
• Download instructions are found within the course .

System requirements:

Intel Pentium 4, 3.0 GHz or better is required. It needs at least 1GB Hard Disk, 500 MB RAM, sound card, and speakers.