Wednesday 22 July 2015

How to find your Public IP address?

In the previous post ,we discussed about how to find my IP address (private),In this post we will look at methods on how to find your IP address which is visible on the internet.Simple way to find out is to use ip address lookup. This tool will show your IP addess as well geolocation information.You can find out the location of another IP address as long as it is a valid public IP address.For ex-if you type 192.168.1.1 it will show you nothing.Another way to find out is to do it manually.There are various options available to connect to the Internet like DSL modem which works with phone line,CableTV internet(CATV)and so on.With DSL or CATV as a connection ,you will have Router or modem installed by your Internet Service Provider(ISP)at your home which connects your private and public networks.This is what it looks like :

 In the above network topology, 192.168.1.2 is my computer's IP address,192.168.1.1 is my router's IP address and 1.1.1.1 is my router's WAN IP address.Thing is that router has two interface,one facing your home and another facing the Internet.Private ip address for home and Public IP address for Internet.


Find out your IP address :


To know your public IP address ,you have to access your router's webpage.Press Windows logo+r >type ncpa.cpl>enter>right click on the connection which is connected>Status>Details and find your default-gateway address.When you know your default-gateway address ,open up the browser and type that IP address in the address bar and press Enter.





It will ask for username and password which by default in most cases are admin and admin or admin and password ,you can check your router's default username and password on Google.
















This will open up router's webpage,This is my Asus DSL- N10E router ,To see what my Public IP address is, I click on Router Status>WAN.Steps will be different for your router.All you have to do is to find your default-routers address and type that address in the browser,type username and password and your router's interface is in front of you.


This public IP address is not static meaning if you shutdown your router and restart it after 5-10 mins,its ip address will change.Because ISPs use DHCP server to lease IP address to the clients when requested.

5 comments:

  1. This same general process is used when sending data over the Internet. However, instead of using a phone book to look up someone's name to find their physical address, your computer uses DNS servers to look up a hostname to find its IP address.

    For example, when I enter a website into a browser, like www.lifewire.com, into my browser, my request to load that page is sent to DNS servers that look up that hostname (lifewire.com) to find its corresponding IP address (151.101.65.121).

    Without the 192.168 IP address attached, my computer will have no clue what it is that I'm after.

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  2. Really wonderful information It's useful sharing....
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  3. Follow My Steps to Configure Your WiFi Router Settings using 192168ll

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  4. Pretty good post. I have just stumbled upon your blog and enjoyed reading your blog posts very much. I am looking for new posts to get more precious info. Big thanks for the useful info. ISO 27001 toolkit

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  5. Thanks for sharing your knowledge, as I would like to add, to use the tool https://dnschecker.org/ip-location.php, that not only provide you the IP, but also the location of that IP by using several geolocation databases.

    ReplyDelete