[ns] Problem in designing packet format and monitoring its arrival event

[Dhara Buch]

Hello,
    I went through the FAQs, but my question does not fall in that, so sending 
this again. 


    I want to write code for designing the packet format and to monitor the 
packet arrival event.
    In which way the provided class and its events of Otcl can be used in NS2?
    If some sample code can be provided, then it would be too much helpful to 
me.
    Thanks,
Dhara Buch