john10001 wrote:Hi every one, I am new to networking. Can any one tell me the major difference between IPv4 and IPv6
To use !Pv6, you have to multiply all your IPv4 addresses by 1.5 in all 3 dimensions, giving, ultimately a need for a 108-bit address space. To make that more bit-friendly, clever engineers added another 10 bits in the fourth dimension, giving a full 128-bit address time-space continuum. Most folks still call it an address "space", even though it is no longer just a 3D protocol like IPv4. IPv6 allows one to address any location at any particular moment in time, making a necessary first step in the quest to allow mankind the luxury of being able to travel through time.
Strict IPv6 addressing is needed when traveling through time and space simultaneously, but if you are physically present at the spot where you wish to engage in time travel, you can travel much more easily by using the link local prefix. Saves SO much hassle, provided you can be at that spot, like I said.
This is why you hardly ever hear of anyone complaining about how they accidentally brought down an IPv6 network: the admins are able to travel back in time, to before they made a mistake, and start over, aware of what precautions are necessary to avoid that mistake. All they have to do is record the exact time-space address of where they are when they start the changes, and they essentially have a save point in time that they can refer back to.
Those that fail to take such precautions, however, usually make another classic IPv6 blunder: that of wiping themselves and their networks out of the time-space continuum. Fortunately, damage is limited by provisions in IPv6 to fall back to an IPv4 network when an error state in time-space is detected. All the people at the local company ever notice is that, for some odd reason, they have an opening for a network administrator.
IPv6 is quite good fun to learn about, and I recommend it to all young networking professionals hoping to get ahead in the world.
Take a baseball bat and trash all the routers, shout out "IT'S A NETWORK PROBLEM NOW, SUCKERS!" and then peel out of the parking lot in your Ferrari.
http://www.networking-forums.com
Вопросы есть? Вопросов нет! | BCEB: Belkin Certified Expert Baffler | IT'S NOT THE FIREWALL!!!