Hellow, can anyone tell me that is there any setting in the workbench by which i can simulate different packets (packets with different headers) on the same port....actually i wanna check a design of a firewall.....for which i need to check it with different types of packets..as only then i wd. be able to analysis the data sructure or algorithm which i have used.... so if anyone kow it....pls let me know... and another thing what changes shd. one have to make 2 MicroEngines transmit on the same port.... Thanxs in advance..... Regards, Nitin