Found the thread you referred to. Unfortunately, I've no first hand experience with that stuff, so I can't assure of any relevant help. But I'll try to do some research to see if I can understand it enough to be able to offer some help.
Meanwhile, try to look into Tutorials & Tips section to see if something relevant exists there. Also, if you find some potential solution somewhere that you wish to try, you should mention it (with link) in your thread.
varunendra I have an issue on configuring NAT , If you know about this topic I need your help ......please search this thread
I see you are a student. So what are you studying? If it is something IT-related, then I hope you'll find ubuntu more suitable for you than anything else, generally due to its software support, and particularly due to the huge community support here.
See you around!