In case of a fresh internet connection established a) who allots the I P address? b) Is the IP address linked to the computer or its location? c)If the compuer is shifted to a different town,will it get changed? d) How to find the ip address of a sender of a mail? E) what is the purpose of ip address?
In case of a fresh internet connection established a) who allots it b) Is it linked to pc or its location?
How IP addresses are allotted depends on the type of the user. For the purpose of this question, I am going to assume that the user with the fresh connection is an average person connecting from his/her home.
For home users, the IP addresses are allocated through the following channels in given order.
1) Internet Assigned Number Authority (IANA) assigns blocks to
2) Regional Internet Registries (RIRs) assigns sub-blocks to
3) Internet Service Provider (eg. Comcast, Verizon..etc) assigns individual IP address to
4) Home user.
The IP address assigned to the home user by the ISPs is assigned to a specific house/apt/location. Whatever machine that is connecting to the Internet from that house will have that IP address. As a result, if the computer is moved to a different town, it will have a different IP address because it will need to connect to the Internet via a different connection/IP address.
To find the IP address of the sender, you need to access "full headers" of the e-mail. The full headers basically record all the routes the e-mail took before it was delivered to your e-mail server or account. In some cases, you will not be able to find the originating IP address because it may be hidden. For example, all Gmaill e-mails are routed through a Google server. All originating IP addresses will point to a Google server and not the person who send the e-mail.
The purpose of an IP address is to allow communication between computers and devices on the Internet. It is similar to how telephone numbers allow phones to connect to each other.
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