Very Nice

Remember You are born to Live
Don't Live Because you are born
Don't go the way life takes you
Take life the way you go!!

My Kittens

I have seen little kittens
In winters I give them mittens
Before they run
They eat a bun
They have lots of fun
And they like the shine of the sun
They like to drink milk
And like to sleep on silk
They don’t stink
And their color is pink
Their eyes are blue
And play with glue
Their favorite color is yellow
And they are my fellow
They never get flu
I hope their wishes come true
Everyday I count them, they are seven
I wish they go to heaven

Those Who..............

Those who give respect to their parents
And respect by their juniors
Those who admire their ancestors
Are admired by their generation
Those who take care of their neighbors
Are protected by their neighbors
Those who love their juniors
Are idolized by their juniors
Those who assist needy
Are supported by their God
And those who give respect to their teachers
Are the best students

Subnet Mask Vs Wildcard Mask

In general we can derive the subnet mask from the networks bits of a class, like for class A, the network bits are eight (8), so we have to on (1) only the first eight bits and off (0) the remaining bits so the subnet mask we will get is 255.0.0.0, because on the eight bits means 255. Likewise for class B, the networks bits are sixteen (16) twenty-four (24) for class C, so the subnet mask will be 255.255.0.0 and 255.255.255.0 consecutively. If we go in detail of subnet mask, the networks bits means that when data comes so it will check the network bits of the data and will then forward that data.
Some people called the wildcard mask the opposite of subnet mask, like
Class C IP address---------------------- 200.100.50.52
Subnet Mask-----------------------------255.255.255.0
Wildcard Mask---------------------------0.0.0.255

But it is not true always like because if we are asked to calculate wildcard mask for range 192.1.1.0 to 192.1.1.15 then it is know that this range belong to Class C and subnet mask for class C is 255.255.255.0 and the opposite is 0.0.0.255 which is not true. The correct wildcard mask can be calculated by the this way, Suppose we are asked to calculate wildcard mask for the range that is 192.1.1.0 to 192.1.1.15, so the procedure to calculate this range is, First open the last byte and then put 0 for all the same columns and put 1 for different column
192.1.1.0000 0000
192.1.1.0000 1111
0 . 0.0 0000 1111-------> 0.0.0.15------> Wildcard Mask

Mum & Dad

My mum and dad are always there for me
When I don’t understand they help me see
Even though they live apart
My brother and I will always live in their heart
My mum and dad give me so much joy
I will always be their special boy
My mum makes me so proud
Without her I will be lost in a crowd
One thing that I do know
Is that my mum’s love will always show.

mY BrOtHeR

My brother is the best
He always helps me with my test
My mum says that we are good boys
Because we share all our toys
My brother and I like to play
A lot of games every day!

DePeNdS............

A Clay pot containing milk will be ranked higher than
a golden pot containing poison.
Not our outer glamor but our inner virtues make us valuable.

IPv6

IP version 6 (IPv6), the replacement protocol for IPv4, is a well known for a couple of reason. It provides the ultimate solution for the problem of running out of IPv4 address in the global internet address by using 128-bit address.
The world has change very rapidly so there is need of more and more address, as now the phone have the internet facility and it requires the IP address, the car dealer also feel the need of an IP address so that the dealer can contact their customer at any time when they want to diagnosis a problem, so some of the manufacturer have accept this idea. The two main reasons to shift to IPv6 is that of more address and some attractive features that includes IPsec, no need for NAT/PAT, Aggregation, Address assignment features etc. Before assigning Class C network that begin with 198 to a particular ISP in a particular part of the world allowed others ISP’s to use one route for 198.0.0.0/8. Finally NAT/PAT did amazingly by allowing a typical home or small office to consume only one public IPv4 address. The migration from IPv4 to IPv6 will not be a surprise as it already started and in couple of years it will be implemented. “As US government has set date in 2008 by which all government agencies should be running IPv6 in their core IP networks”.
The address assignment for IPv6 is elegant, simple and summarize as under:
i) Public IPv6 address are grouped (numerically) by major geographic region
ii) Inside each region, the address space is subdivided by ISP inside that region
iii) Inside each ISP in a region, the address space is subdivide for each customer

The Convention, IPv6 convention use 32 hexadecimal numbers, organized into 8 quarters of 4-hexa digits separated by colon, to represent a 128-bit address. For example

2002:042c:0000:5061:92AB:0000:0000:6104 / 64
Now it is difficult to remember this address, so there is certain rule through which we can make this address short and will be easy to remember.
Refer to Figure A,

Step # 1: Remove the Zero (0) from the octet which starts from 0. As in the figure, we remove 0 from 042C and wrote it 42C.
Step # 2: Now for four consecutive zero, write only one 0, as in figure, for 3rd, 6th and 7th octet we wrote one 0.
Step # 3: Put double colon (: :) for two consecutive zeros. As in figure, for 6th and 7th octet zero we put double colon. Note: Repetition of double colon is not allowed, we can do once in an address.

Expanding an Address:

2002 : : 4 / 64
2002 : 0000 : 0000 : 0000 : 0000 : 0000 : 0000 : 0004
If you want to reduce the size just apply the above three steps.

Configuration of IPv6:

a) On System
Just go to command prompt and type ipv6 install, here we go the installation is successful and enjoy now.

b) On Router:
It’s so simple to configure IPv6. There are two types of address; one is called Global Unicast Address which is assigned by our self while other is called Link Local which is assigned by router by self and that starts from FE80. Now Refer to Fig B.
A (Config) # IPv6 unicast-routing
A (Config) # interface e / 0
A (Config-if) # IPv6 2002 : : 2 / 64
***************************************
B (Config) # IPv6 unicast-routing
B (Config) # interface e / 0
B (Config-if) # IPv6 address 2002 : : 1 / 64
***************************************
A # Show IPv6 Interface
A # Ping 2002::2