Unique IP Address for Everyone

Archived from groups: microsoft.public.win98.gen_discussion (More info?)

Hi,

Everyone on the web has a unique IP address. What
method is used to produce a unique IP address for everyone
using the web, which insures that a duplicate doesn't occur?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.
3 answers Last reply
More about unique address everyone
  1. Archived from groups: microsoft.public.win98.gen_discussion (More info?)

    Same method that assures that a 5+4 Zip Code in the United States only
    refers to a single destination, or that a telephone number only refers
    to a single end line. In all of these cases, the methodology is
    hierarchical--initial numbers refer to major nodes, and the address
    becomes more and more specific as you work towards the end. As for
    duplications, well, for every IP/ZipCode/Telco number issued, there's
    always a list somewhere that keeps track. First order of business in
    assigning such addresses is to build one based upon hierarchy, and to
    then see if that address is already used--if so, the nearest available
    address is substituted.

    --
    Gary S. Terhune
    MS MVP Shell/User
    http://www.grystmill.com/articles/cleanboot.htm
    http://www.grystmill.com/articles/security.htm

    "Brad" <bpetria@verizon.net> wrote in message
    news:421d029b.444672@news.bellatlantic.net...
    > Hi,
    >
    > Everyone on the web has a unique IP address. What
    > method is used to produce a unique IP address for everyone
    > using the web, which insures that a duplicate doesn't occur?
    >
    > Thanks in advance, Brad
    >
    > Before you type your password, credit card number, etc.,
    > be sure there is no active key logger (spyware) in your PC.
    >
  2. Archived from groups: microsoft.public.win98.gen_discussion (More info?)

    IP addresses was allocated on geographical basis long ago.
    Within each geographical location (like USA), IP addresses was assigned
    (purchased) by various organization and each of these organizations allocate
    IP addresses to their customers.

    In the past an individual who wanted to set up a network and needed a block
    of IP addresses could actually apply and get one assigned. With the growth
    of the internet blocks of IP addresses was only assigned to major providers.

    Thus, when an individual connect to the Internet, a IP address is assigned
    by the service provider. This IP address is unique and is temporary. If
    connected thru a broadband connection typically a lease for a fixed period
    of time is provided and renewed regularly. Thus as long as connected (or if
    disconnected for a short period of time) this address will remain fixed. If
    connecting thru a phone line for short duration, an address is provided but
    once the connection is interrupted the address is returned to the service
    providers pool of available IP addresses. A subsequent connection will most
    likely result in another IP address.

    Three blocks of IP addresses was reserved for use on Internal networks.
    These addresses are not routable on the internet. However, they can be used
    by anyone on an internal network. To connect to the internet from such a
    network a router ( or equivalent is required.). This interface will have a
    routable assigned IP address on the internet side and use the reserved
    addresses on the local side. The router will then allow each computer on the
    local side to interface with the internet by translating between the
    internal reserved IP addresses (network) and the external network.

    10.0.0.0 to 10.255.255.255

    172.16.0.0 to 172.31.255.255

    192.168.0.0 to 192.168.255.255


    --
    Jon Hildrum
    DTS MVP
    Jon_Hildrum@msn.com
    www.hildrum.com
    "Brad" <bpetria@verizon.net> wrote in message
    news:421d029b.444672@news.bellatlantic.net...
    > Hi,
    >
    > Everyone on the web has a unique IP address. What
    > method is used to produce a unique IP address for everyone
    > using the web, which insures that a duplicate doesn't occur?
    >
    > Thanks in advance, Brad
    >
    > Before you type your password, credit card number, etc.,
    > be sure there is no active key logger (spyware) in your PC.
    >
  3. Archived from groups: microsoft.public.win98.gen_discussion (More info?)

    bpetria@verizon.net (Brad) wrote:

    >Hi,
    >
    > Everyone on the web has a unique IP address. What
    >method is used to produce a unique IP address for everyone
    >using the web, which insures that a duplicate doesn't occur?

    They are assigned by the Internet Assigned Numbers Authority
    (www.iana.org). Look at this page:
    http://www.iana.org/ipaddress/ip-addresses.htm it talks about how IP
    addresses are assigned.

    --
    Tim Slattery
    MS MVP(DTS)
    Slattery_T@bls.gov
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