How to host multiple RRAS in same network?

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http://serverfault.com – i have hosted w2003 RRAS in my network succesfully ( Natting with one public IP ) i need to host another RRAS setup same like above with different private IP address and public IP's,. when i configured so, both w2003 servers got frozen and internet got Disconnected.. How can i host 2 RRAS in the same network, i am using RRAS to limit bandwidth for computers running private ip's through bandwithcontroller software. (HowTos)