Week 5: OSPF PROTOCOL CONFIGURATION IN CISCO PACKET TRACER

OSPF is an Interior Gateway Protocol (IGP). OSPF was designed expressly for IP networks and it supports IP subnetting and tagging of externally derived routing information. OSPF also allows packet authentication and uses IP multicast when sending and receiving packets. The OSPF protocol is a link-state routing protocol, which means that the routers exchange topology information with their nearest neighbors. The topology information is flooded throughout the Autonomous System(AS). This picture is then used to calculate end-to-end paths through the AS, normally using Dijkstra's algorithm.


OSPF protocol network topology

Configuration of OSPF using CLI in Cisco Packet Tracer:
  • The steps to set up the RIP is same to some point as setting a router network link explained in previous blog. The further steps to follow are given below:
    • Type no ip route network_ip network_subnet gateway_router_address.
      • (e.g.): no ip route 192.168.100.0 255.255.255.0 10.10.10.20
    • Then type router ospf process_id. (*here process id is any number such as 99).
    • Then type network network_ip_address wild_mask area area_number.
      • (wild_mask is inverted subnet mask and area_number is process_id declared above).
*Do same for 2nd router and ping.

The steps are shown below using CLI interface.
OSPF configuration for router 1
OSPF configuration for router 2

Comments

Post a Comment

Popular posts from this blog

Week 10 - Programming UDP Sockets in Node.js

For all things UDP in Node.js, you will need to use the  dgram  library, so read it up well and good. UDP Server Here is a simple example of a UDP server. var PORT = 33333 ; var HOST = '127.0.0.1' ; var dgram = require ( 'dgram' ); var server = dgram . createSocket ( 'udp4' ); server . on ( 'listening' , function () {      var address = server . address ();     console . log ( 'UDP Server listening on ' + address . address + ":" + address . port ); }); server . on ( 'message' , function ( message , remote ) {     console . log ( remote . address + ':' + remote . port + ' - ' + message ); }); server . bind ( PORT , HOST ); Things to Note HOST is optional in  server.bind() . If omitted, it will be listening on  0.0.0.0 , which might be what you want in some cases. The  message  event is fired, when a UDP packet arrives destined for this server. The  listeni
Read more

Week 6 Implementation of DHCP in CISCO Packet Tracer

Image
The DHCP (dynamic host configuration protocol) is a standardized network protocol which is used in internet protocol (IP) networks. DHCP is used to assign IP automatically to the system with the help of a machine called DHCP server. A DHCP server enables computers to request IP addresses and networking parameters automatically. In the absence of a DHCP server, each computer on the network needs to statically (manually)  assigned to an IP address. Static IP addresses are usually assigned to routers, management interfaces on switches, servers and other devices in the network which do not change location either physically or logically. Static IP addresses are also used to access and manage these devices remotely. On the other hand, user devices such as computers, smartphones, IP phones and others are likely to change their locations either physically or logically. This means that assigning them static IP addresses would be an unviable solution. DHCP is a protocol that was i
Read more

Week 1 - Introduction to Cisco Packet tracer

Image
What is my blog going to cover? In this blog I am going to discuss in detail all features and uses of Cisco packet tracer along with the benefits and disadvantages of the program. Hopefully this blog can teach you something new and help you get the hang of and use packet tracer. What is packet tracer ? Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network typologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface. It is very useful when studying networking which I am doing as a module for part of my college degree in Manipal University Jaipur (MUJ). Packet tracer is very complicated looking but as soon as you start to use the program it becomes very clear that in fact the program is actually quite easy to use. I am just going to quickly cover the beneficial and advantage side of using this
Read more