Hi amazer,
This is possibly a bit more complex than the cursory treatment above might indicate.
The image below shows me surfing two minutes ago, visiting whatismyip and simultaneously displaying the results from the windows winipcfg utility. As you can see they differ.
The 203.9.148.1 IP address is the IP address which my ISP has allocated to me *for this session*, as I'm using dial-up for access. In my next session, it might/will be different. For folk with ADSL or Cable (about 1 in 30 of internet accounts in Australia), the IP address is usually either fixed or fixed until the next reset. Access via a network can be slightly more complex.
Consequently, the answer to your question depends oin exactly you want to do.
Here are some examples where it is not useful:
- trying to determine if two users on this forum are the same person
- trying to control voting in elections
What it can be useful for is measuring the number of unique visits to a site (not, however, unique visitors) over a period of time.
So, your question is answered by "go to
www.whatismyip.com", but the answer may not be what you really need.
Sorry for the prolix reply, but as you're a super admin., its worth getting it straight.
hth
[Edited on 14-10-2003 by modulus]