Sharing internet and controlling access.

Hi all,

I have a network setup of 4 computers running win xp and 3 laptops running win 7. out of these 4 xp systems and 1 laptop is connected to lan via switch. all connected systems are using static ip addresses. 1 computer connects to internet via dongles. What i want is to share the internet connection with others but i want to control the access as i like. for eg, i connect one computer to internet and then i want to allow one other computer to have access. at that time.

Also, can i use the laptop which is connected to lan as wifi router to connect other two laptops wireless-ly for file sharing and remote access(RDP)

Please advise.

Thanks and best regards,
Amit.
 
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