Hi ns users, For wireless3.tcl in Marc Greis's tutorial, I changed 5Mb to 100Mb, and 2ms to 5ms; When I run it, the following message appears: "warning:Route to base_stn not known: dropping pkt". Could you tell me what's wrong? If I change back 100Mb to 5Mb, and 5ms to 2ms, no error messages. Thanks. Sun Cao