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Setting up Linksys WiFi router with Airtel Broadband June 4, 2008

Posted by xk0der (aka Amit Singh) in : Tips and tricks , 10comments

I bought a Linksys WiFi router last weekend. I had a little bit of trouble configuring it, although the problem was trivial, it took me some time to figure it out. I’m jotting down some notes here about what I did to resolve the problem. ( I’ve have some tips at the end of this post which you may find usefull for use with linksys (and probably other) routers and with most DSL modems.)

The Problem
The beetel DSL modem installed by Airtel has the IP address set to 192.168.1.1. The Linksys router (and probably other routers as well) use the same IP address (192.168.1.1) as their default IP address for accessing their configuration page. This causes an IP address conflict and hence the router wouldn’t be able to forward IP packets to the modem.

The Solution
1) Insert the installation CD/DVD provided with the wifi router and follow the instruction for installing the router. During the installation (Probably at the final step) the router will fail to detect Internet connectivity. That’s fine, as this is the problem we are resolving. Leave the setup window open and proceed to next step.
2) Open your favourite web-browser and enter the following address in the URL bar : 192.168.1.1
3) The above step should open the Linksys configuration page. If you are prompted for a username and password, enter admin for both the fields. If you had set a router password in step 1 enter username as admin and the password you had set in step 1. Before the username and password is asked you might be displayed a page with 3~4 icons, labeled WAN, LAN etc. select the WAN Icon, enter the username and password as described above, if prompted for.
4) On the page displayed select Setup tab (most likely the first tab) and under that select Basic setup (The exact name/text might vary but would most probably be something similar). Scroll down and locate the field Local IP address. The default value for this field would be 192.168.1.1, change it to 192.168.0.1.
5) Scroll further down the page and click on Save Settings. Reset your router and DSL modem (Power them OFF, wait for 10~15 seconds and power back ON). Wait for around 1~2 minutes (So that the Router and DSL modem have properly rebooted).
6) Complete Installation of the router (Click ‘Try Again/Re-try’ in the setup window we left open in step 1)

You should now be able to browser Internet properly on the wired (directly connected) computer. Setup your Laptop and Desktops with WiFi Ethernet card/adaptors to connect to the WiFi router. After that you should be able to access Internet through them.

Tips

I hope this post was of some help to all the Bharti-Airtel broadband users. Thanks for reading. :)

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xstress - xk0derz SMTP Stress Testing Tool November 15, 2007

Posted by xk0der (aka Amit Singh) in : Programming and software development , add a comment

xstress is a tool developed by me, that allows users to stress test (their) SMTP Mail servers. The tool is pretty straight forward (and very simple too). It creates multiple connections to the mail server and pumps e-mail traffic on those connection. That’s it.

The good thing is that you can configure lots of parameter to simulate different kind of traffic, like virus traffic and spam traffic for instance.

You may use the links below to get sample (un-harmful) virus file and spam file respectively.

http://en.wikipedia.org/wiki/EICAR_test_file
http://en.wikipedia.org/wiki/GTUBE

The tool contains a README file explaining how to build and run it.

Complete source is available at the following link: http://sourceforge.net/projects/xstress

xstress Home Page : http://xstress.sourceforge.net

Hope this tool is useful to some ( or all ;) )

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