Quest2: Change IP on 3 OS

*Ubuntu

Confirm the current IP
-Command "ifconfig" on Terminal

Change IP on Terminal as the following. I changed the last number 3 to 2.

Confirm the changed IP address.

*Window XP

Confirm the current IP on Command Prompt.
Release the IP
- Command "ipconfig /release" IP was released.
Go to the IP Properties
- Control Panel > Network and internet connections > network connections. Then, choose the active connection and mouth right click > Properties > TCP/IP

Insert the IP I want. I changed the last number 3 to 2. The rest of the numbers was inserted as the same.
Confirm the changed IP address on Terminal window.