[ILUG-BOM] Partial internet connectivity under linux but windows gives full connectivity

Hi, i access internet using lan. i have windows 98 and linux red hat 7.3 installed. While i can surf any website and use yahoo messenger in windows 98, i cannot surf most of the sites in linux and cannot use yahoo messenger. Only some sites like google.com can be accessed by both linux and windows.I can get my mails using email client in both linux and windows properly.

On analying TCP Dumps , i figured out that my machine sends TCP Reset often..in linux while in windows it sends it rarely . In general internet connection under window is good while under linux is pathetic!!!

What to do so that i get same internet connectivity in linux as i get in windows?

highly in need of your idea, suggestions -vishal