[twincling] Study material for programming in ns2

[vedhachalam kasinathan]

Hai everyone,
I am doing a mini project�using ns2. My topic is "passive analysis of TCP 
packets". I could not find any study material for programming in ns2. Can 
anyone please suggest me a freely available ebook for ns2. Also, I am finding 
some problems while working with FullTCP agent in ns2. The trace file produced 
after using FullTCP agent is not producing any 'ack' packets. Can anyone please 
solve this problem by�giving a sample program in ns2 using FullTCP ?
Thank you all.