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Re: [ns] ns programing

> For my homework, I need to add some code to drop-tail queue.
> Whenever receiving a packet,
> 1. how to tell if it's a tcp ack packet?

if the type is PT_ACK you can generate some action. that you can check by
checking the ip header of a packet. please check the manual ...... 

> 2. how to modify it's receiver window size field?

you have to modify the receiver agent.

debo