How to configure IP address in linux
 

My router configuration page requires something strange

In Windows7 I did like this

http://i58.tinypic.com/29giltx.png

How to do the same thing using Linux commands

And I'm wondering why my router require changing IP

I want to know the principle

You can do the same thing the same way with graphical network managers in Linux. Depending on the desktop environment you're using (what distribution are you running?) you probably have an icon showing your active network connection somewhere where you can do something along the lines of Right Click -> Edit Connections and edit the connection you want to set a static IP for. If you want to use the terminal that's an option too of course, but using graphical options might be more comfortable.

I'm using Slackware 14.1 for my Desktop and PuppyLinux for my USB

Since I'm using two different distributions I think it would be better to use general Linux commands rather than distribution-dependent network managers

There's no guarantee that they will have the same command, as Slackware is rather old fashioned and Puppy rather unconventional. Look at ip, or else ifconfig.

ifconfig works thanks!