virtualbox.org

My Setup

VirtualBox: 3.2.12
Host: XP Pro 32-bit
Guest: Windows 7 Premium 32-bit
Networking: NAT for the guest
Guest Network Adapter Driver: Intel PRO/1000 MT Desktop

Problem Description
On the host I can navigate on Internet, but on the guest no.
The host IP is static.
Which host configuration or guest configuration I need to set to navigate in Internet in the guest operating system ?

VirtualBox 3.2.12 doesn't permit the bridge connection under the Networking option.
So I installed VirtualBox 4 beta3 and I'm able and now I can connect to Internet.
Thank you to all for the support.