Network card drive - newbie

Hi!

I'm a newbie trying to make first steps and study SLED10.

After installation on PC it can't connect to network. On same PC is a Windows XP system which connect OK.

The mother board is a GA-945GCM-S2 with Realtek 8111/8169 LAN.

Can any one help ne find the adequate driver and install it?

TIA

Nanu