How the ip address assignment works? The router or ISP assigns the
unique IP address to the host, but it is based on the geographic
location? How to guarantee there is no two IP addresses the same in
the world?
The Internet Assigned Numbers Authority allocates IP addresses to
regional Internet registries:
http://www.iana.org/numbers/
The regional Internet registries allocate IP addresses to
corporations, government agencies, Internet service providers, etc.
For example:
http://www.arin.net/index.shtml (North America)
http://www.ripe.net/ (Europe, Middle East, Central Asia)
Also, I wonder how the web site
http://www.ip-adress.com/ identifies
the ip address of a host?
When you connect to the Internet, your Internet service provider
assigns you an IP address. If your computer connects directly to the
Internet, your computer gets the address. If your computer connects
to the Internet through a broadband router, your router gets the
address.
When you request information from a web site, the request includes
your IP address. Like the return address on a letter that you mail,
it tells the web site how to send the reply to you. A site like
http://www.ip-adress.com/ reads your IP address from the message that
you send to it.
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Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)
Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
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