Basically the network interfaces have been configured already during installation of Ubuntu Linux. However, if you are a new Ubuntu user, you should know a little bit about how to add or remove network devices on your Ubuntu box. This post is also useful for anyone who has a troubleshooting with network connection.
Open a Network-Admin Tool
System > Administration > NetworkYou will go to a "Network Setting" panel as the following screen. At the default mode, the first tab (Connections) is selected. This tab allows you to setup all network connections.
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Now, I try to click on the second option "Wired Connection" and hit "Properties" button. Here, I can see that the check box has been sticked to mean that "This connection has been configured" for interface eth0. From the drop-down list of configuration field in "Connection Setting" part I can identify what kind of IP address should be used for this connection (a static IP or a dynamic IP).
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For the first option in "Network Setting" Panel is checked when we want to use a wireless connection. You have to make sure that your computer support for a wireless card to configure for this connection. The following screen shows that you have configured for your wireless network device as the interface eth1. This interface will be connected to a network named WLAN-555 with two parameters about password for network authorization.
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We continue with the second tab (General) in the "Network Setting". This part allows you to put a name and domain for your host as shown in the following picture.
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The third tab can be used to identify a Domain Name System (DNS) which translates hostnames to IP addresses. This is needed for network devices in delivering information. Just click "Add" button and enter a new IP address of your DNS server and click "Delete" to remove an existing address from the available list.
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VnTutor
I installed XP on my macbook with bootcamp. Everything worked great, i had my wireless and my network cable via ADSL. Once i installed Vmware Fusion and setup the XP with it, the network connections window shows only one setting. I don't have a wireless connection. I checked the driver and it shows VMware accelerated AMd PCNet Adapter. The Macbook is only connected online via wireless, yet XP and Ubuntu both now only show a wired connection thru Fusion. I've tried everthing. In Control Panel>Device Manager, i select network adapter>view>show hidden devices, it shows the other adapters, atheros 5008 wireless, etc. But i cannot get XP or Ubuntu to show the wireless connection. very frustrating... as i'm using wireless, but its showing a network cable connection in the settings.