[ns] Need information abt working of Pcap.

[anil reddy]

hello,
        i am using ns2.29 for the development of network emulator
testbed, could any one plz tel how          emulator captures the
packets using pcap and sends it to source and from sink to the
destined node i.e., can any one briefly tell me the working of pcap.
Also any links where we get d detailed information abuot pcap


THANKS AND REGARDS..