You may have some confusion. Most service providers don’t just give you an IP address for good (that usually costs extra). They dynamically assign them every time you reconnect so a dropped connection may have gotten you a new one. There is no problem with that at all. You probably should have allowed the firewall to do its thing through the new one as well.
Huh. I’ve never received that prompt before, so I Googled the IP address it was trying to give me, and I only got one response: A text file in a .ru location. I figured some Russkie was trying to use my computer for his nefarious plans.
They do break down geographically although it isn’t always perfect. You can usually get down to the level of a town and that is about it. It doesn’t always work though. Mine is currently misreporting by a few miles. It is simply due to the way that the service providers like to dole them out to people.
IP addresses aren’t usually that intrusive but they can sometimes be telling. Many websites log all incoming IP addresses and a very distinct IP address location can hint that a particular person is visiting. I can do that pretty easily on my personal website for example.
BTW, that Russian website just has a number string as part of a data set that looks like your current IP address to Google. It isn’t anything to worry about. If you turn your modem off for a while and then back on, you may get another one yet again.
Website: easy run CMD and type in ping website.address.com or whatever the address is, missing out the http:// part.
For email, you need to look at the header, which will give you the URL/IP address of all places the email has touched on its way to you. The first one is the originating IP address of the sender. Note, this list is usually in reverse order.
If you want to go backwards - find a website/ISP/whatever from an IP address, it’s a bit tricky, but start at internic.net and choose the “nameserver” option, pasting the IP address into the box. Sometimes the results will return another registrar (e.g. European ones will tell you to go to Ripe.net), in which case go to the suggested site and look for the “whois” info and do it again. Alternatively, samspade.org has more features to do this, but it’s blocked here so I can’t go into more details.
There are thousands of computers scanning other computers on the internet for holes in their security. My firewall logs are disappointingly large. If it was a Russian IP, it was probably one such. What you can do is a whois search on the IP address. There are many websites offering such a service, and you should check using several.
How do you connect to the internet? You may have an internal IP address and an external one. I assume you have a PC and it is set to DHCP (get an address automatically).
Click Start | All Programs | Accessories | Command Prompt
Type ipconfig and press Enter
You’re interested in the second line.
This will be the IP address given to you by the ISP or your DSL modem.
For more information, type ipconfig /all
Now open your browser and go to www.grc.com and click on Shields Up. This will give you both a text name and an IP address. These are your external addresses.
Go to the Start button, click “Run…”, then type “CMD” into the box and hit return. This will launch a black command console window into which you can type “ping”. The results will appear in this window too. E.g.
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\>ping boards.straightdope.com
Pinging boards.straightdope.com [207.97.195.229] with 32 bytes of data:
Reply from 207.97.195.229: bytes=32 time=84ms TTL=50
Reply from 207.97.195.229: bytes=32 time=82ms TTL=50
Reply from 207.97.195.229: bytes=32 time=82ms TTL=50
Reply from 207.97.195.229: bytes=32 time=82ms TTL=50
Ping statistics for 207.97.195.229:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 82ms, Maximum = 84ms, Average = 82ms
C:\>
DNS Stuff is another cool web site with lots of tools you can use to find info on IP addresses and domain names. Also, your IP address appears at the top.