How do i know whether my NIC works or not?

Mon Dec 28 11:24:53 UTC 2009

arshad wrote:
> On Mon, 2009-12-28 at 10:50 +0000, Steve wrote:

> 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
> 
> 

As you can see the ethernet controller is in you system and functioning.
Post the output of ifconfig.
Is your DHCP server located on the same network segment (show the IP 
address of the DHCP server).
Joep