[ns] Sending a packet - howto/where

[Mayur]

Dear Fernando,

recv() is used for sending too. Actually, it is pertaining to the 
Layered architecture. A lower layer RECEIVEs packet from its upper 
layer. Check carefully the code of recv() function and you will observe 
that it is first of all checking the 'direction' of the packet, if it is 
'down' that it is a packet RECEIVED from its upper layer.

Hope it's clear!