Sunday, February 12, 2012

Configuring RIP version 1 and version 2

Okay guys . The difference between RIP version 1 and version 2 is that ..version 1 is classful ip addressing ,that means it deals with classes by default .if you put in a class C ip address it will assume that there are three network octats.
where as version 2 is class less ip addressing .here this thing doesnt matter .even 10.0.0.0 can have a subnet of 255.255.255.0 .

BASIC RIP CONFIGURATION V(1&2)

According to the recollection of InetDaemon, configuring a Cisco router for a basic RIP configuration would look something like this:
router> enable
  Password:
  router# conf t
  router(config)#interface ethernet 0
  router(config-if)# ip address 192.168.42.1
  router(config-if)# interface ethernet 1
  router(config-if)# ip address 192.168.43.1
  router(config-if)# exit
  router(config)# router rip
  router(config-router)# network 192.168.42.0
  router(config-router)# network 192.168.43.0
  router(config-router)# exit
  router(config-router)# ^z
  router# 
The example above assumes that the interfaces that will be running RIP have internet protocol (ip) on them that fall within the 204.191.42.0, and 204.191.43.0 class C ranges.

THIS WHOLE THING ABOVE GOES FOR VERSION 1..KEEP IN MIND YOU DONT HAV TO SPECIFY ABOUT VERSION 1

where as in VERSION 2 ..THE DIFFERENCE THAT CAN BE OBSERVED IS

router(config)# router rip
  router(config-router)# network 192.168.42.0
  router(config-router)# network 192.168.43.0
  router(config-router)#version 2
  router(config-router)# exit

the only difference when configuring is the command write up for version 2.KEEP IN MIND THE DEFAULT IS VERSION1 ..YOU NEED TO SPECIFY IF USING VERSION 2

Wednesday, February 8, 2012

For the people searching PACKET TRACER

below is the download link for packet tracer 5.3

Download link for recommended simulator:
http://www.4shared.com/file/Z3Ipz6dI/Packet_Tracer_53___setup.html


this software helps you to do almost 99% of the CCNA labs !

Tuesday, February 7, 2012

Make it TOUGH.

okay so many of the people face account hack problems ,right? Ive come across some basic keys that help you make your password a strong one !
password protection includes maths ..you guys must have heard about the probability thing ??
This branch of maths is most important in here.First of all you should know how many formats are there when typing .. it has alphabets(uppercase e.g capital letters and lowercase letters e.g small letters),numbers and special characters .


lets say if i put my password as "computer".. that simple it wouldnt be that difficult for any hacker to analyse my password .the process by which they crack hack account is called a BRUTE FORCE ATTACK.
In this attack the software being used by the user tries up different sets of alphabets first then numbers then special characters .if my password is that simple it would take just 30min at max to decrypt my password.



this simple formula explains it all.remember i had used the password "computer".
my password has 8 characters and if any hackers tries to hack it he'll use all the possible combinations for the alphabets first.the max number of occurances would be 1562275 that is such a small target to achieve.


things to remember when setting up a password are

Start your password with upper case.
then shift towards lower case
include special characters
include numbers



example of such a password can be     CasE@911


by keeping these little points in mind you can have a string password!