Internet IP Address

[John1397]

I was wondering when using dialup I seem to have address that consists of four set of numbers with three periods separating the numbers into four groups and the first two groups of numbers never seem to change only the last two group of numbers change, my question is it seems some places know this is the same address even if the ending numbers change is this correct?

John

[jason2074]

http://support.microsoft.com/kb/140460

[Geek-9pm]

Short answer, No.
The set of four numbers with dots can be called. "dotted decimal format' and some other names.
http://en.wikipedia.org/wiki/IPv4

[Luthfi]

If the places you are referring to are web sites, then those places are using cookies to track your computer.

[patio]

If the places you are referring to are web sites, then those places are using cookies to track your computer.

What does this have to do with the question ? ?

[Luthfi]

^

Please carefully read the part I bolded. I merely explain the possible reason on how those places still recognize his computer (the same address) even if his IP address was changed.

I was wondering when using dialup I seem to have address that consists of four set of numbers with three periods separating the numbers into four groups and the first two groups of numbers never seem to change only the last two group of numbers change, my question is it seems some places know this is the same address even if the ending numbers change is this correct?

[rthompson80819]

Some body correct me if I'm wrong, but from what I've seen cookie numbers and IP address are totally different and independent from each other.

[Luthfi]

@rthompson80819: When did I say they are the same? I was trying to offer one possible explanation as to how some places still recognize his computer even after the IP address change.

[jason2074]

my question is it seems some places know this is the same address even if the ending numbers change is this correct?

A number of websites offer certain services to identify your current IP address(Static or Dynamic). And its not called an Internet IP address but only IP address.
http://whatismyipaddress.com/

[Kurtiskain]

Some ISPs give you a static IP to your account.

However, no the first two sets merely identify the ISP.

ISPs purchase a certain range of IP addresses to hand out to their customers.

Eg doing a WHOIS on my ip shows this:
inetnum: 118.93.0.0 - 118.93.255.255
netname: IP-VFNZ-BROADBAND-2
descr: Dynamic IP allocation pool for broadband services

This shows that any address in the 118.93.*.* range belongs to my ISP, Vodafone New Zealand.

Websites track who you are by using 'cookies' to store your information

[Arjun Ar]

Every time you get online with Dial-up your IP changes.

This can fool some websites.
But if really want to get rid of time limit from websites like rapidshare or megaupload then I would advice to use this addon for firefox

Cookie editor - https://addons.mozilla.org/en-us/firefox/addon/add-n-edit-cookies/

It can add and edit cookies. Just search for the right cookie and deleting it will make your IP look fresh for the website

[charezTech]

hey,

Correct me if im wrong: to explain the four set of numbers with three periods separating the numbers means that your ISP uses IPv6 addresses.
As for the last two that keeps on changing it is the number that IDs the host which is you, so the last two will keep on changing to the range allocated to your ISP.

[Salmon Trout]

the four set of numbers with three periods separating the numbers means that your ISP uses IPv6 addresses.

That's an IPv4 address format. An IPv6 address is represented as eight groups of four hexadecimal digits, each group representing 16 bits (two octets). The groups are separated by colons ( : ). An example of an IPv6 address is:

   2001:0db8:85a3:0000:0000:8a2e:0370:7334

[Salmon Trout]

The set of four numbers with dots can be called. "dotted decimal format' and some other names.

dotted quad