Hi All, Found this message in the ns2-mailing list regarding pcap files but didn't see any solution for it. Can any one help?
here is the message: =============================================== Hi all, I would appreciate it if you could help me. I am having the same problem, which is importing traced traffic (file) into ns2.31. what do I need to make it work Network/File? which ns version do i need to use? Any solution, link, script or code will be helpful. Cheers, moses Larry Brigman wrote: >* *>* *>* I am needing to run a simulation in NS2 that uses*>* pcap or tcpdump >trace files as the traffic in the test.*>* *>* I don't get any errors with >this but I also don't get any traffic.*>* Do I need to explicitly set routing >or is there something else I am*>* missing?*>* *>* My no-error-non-working >example*>* #Create a simulator object*>* set ns [new Simulator]*>* $ns >use-scheduler Heap*>* *>* #Open the NAM trace file*>* set nf [open pcap_ex.nam >w]*>* $ns namtrace-all $nf*>* *>* $ns color 400 Green*>* $ns color 500 >Yellow*>* $ns color 900 Red*>* *>* #Define a 'finish' procedure*>* proc finish >{} {*>* global ns nf*>* $ns flush-trace*>* #Close the >NAM trace file*>* close $nf*>* exit 0*>* }*>* *>* *>* ###### >Setup the Network ############################*>* set r(0) [ $ns node ]*>* set >r(1) [ $ns node ]*>* *>* ####### Create the network links between nodes >######*>* set BANDWIDTH 80Mb*>* set DELAY 10us*>* $ns simplex-link $r(0) $r! (1) $BANDWIDTH $DELAY DropTail*>* *>* $ns simplex-link-op $r(0) $r(1) orient right*>* *>* ######## Setup the traffic types ########*>* set pcap0 [new Network/Pcap/File ]*>* ##### open the trace file*>* $pcap0 open readonly network.dump*>* *>* set null [new Agent/Null]*>* set tap0 [new Agent/Tap]*>* $ns attach-agent $r(1) $null*>* $tap0 network $pcap0*>* $ns attach-agent $r(0) $tap0*>* *>* ####### Notify that we are starting the run...*>* puts "Starting run..."*>* *>* ####### Run the above configured simulation*>* $ns run*>* *>* *>* *