What is IP Adress

IP Address(basic):

In our previous post we have seen the basic of network.You might have noted that I used a term called source address and destination address.These are nothing but the IP address.

if you have not read our previous post ,you can read that through the link below and read this for a better understanding.

https://iamafutureprogrammer.blogspot.com/2019/08/basics-of-network.html

Lets get started...

What is IP ?

• IP means Internet Protocol address.
• There are two types of IP address .
• They are IPv4 and IPv6.
• IPv4 stands for Internet Protocol version 4 and IPv6 for Internet Protocol version 6.

Why we need IP address?

• The answer is just simple. Your house has a address why?.  The answer is that anyone can find out you house using your house address i.e.they are unique
• Similarly,IP address is used to find each node in a network.(if person A want to send a message to person B then a uses the IP address of B to send the message).
• you can see your computers IP address as follows,

1. first connect your computer or laptop to internet.
2. for windows user, Go to command prompt or press ctrl+R and type cmd and hit enter.
3. you will see a black screen open as shown in above picture its command prompt .
4. then type the command   ipconfig   and hit enter you can see the Ipv4 address of your node in the list.
5. for mac user,Go to terminal and type ifconfig
6. you can find the lot of information on it . so just look on to Inet address on it.it is your ip address.

Why there are two types of IP address?

• As i said before we have IPv4 and IPv6 address ,First IPv4 was the commonly used then only IPv6 came in to action.
• The reason is that we can make only 4.3 billion combination of IPv4 address but as you know in current world we have approximately 24 billion devices ,In order to fulfill this need of IP address they introduced the concept of IPv6 address.
• now IPv6 can make up to 340 undecillion addresses.

So in today's world Our device have both IPv4 and IPv6 address.

but still we are using IPv4 address commonly.

Is IP address are Static for a device?

• The IP address can be allocated to a device Statically and dynamically.
• Static allocation means the ip address is fixed to the device.
• Dynamic allocation means the ip address of device keeps on changing.
• most commonly all our mobile and computer uses dynamic IP.
• the servers are also nodes and they uses static Ip address (example : ip address of google servers cannot change dynamically as they are used by many users).

How a IPv4 address and IPv6 address looks like?

• IPv4 - It is a 32 bit address.
• it looks like " 172.15.102.16 "
• IPv6  - It is a 128 bit address.
• it looks like "2001:0db8:85a3:0000:0000:8a2e:0370:7334"

Note:We can discuss about Ip address(advance),servers,databases and website in the upcoming posts...

If any doubts ask in the comment section below..Thank you