I downloaded the ns-2.1b5 (allinone) package.But when i tried to configure it says that the tcl libraries ar missing.Where i can get sources of tcl8.0.4,tk8.0.4 ,tclcl(latest),otcl(latest). i need these as we r trying to simulate a adhoc n/w protocl. regards, smita. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com