For those who are interested...
Brad found a different solution to GrabPackets... find it http://bradmontgomery.net/show.php?page=project_ns2-packetGrabber here However, you can do what Brad suggested previously. See http://www.nabble.com/node-entry--tf3138100.html here Regards, Tim Brad Montgomery-2 wrote: > > > > My initial thought in this regard, was to insert the Agent into Node N1's > entry, and then set the Agent's target_ to the Clasifier in Node N1. > > Here's what I did in my Agent's command function: > -------------------------------------- > int MyAgent::command(int argc, const char*const* argv) { > Tcl& tcl = Tcl::instance(); // tcl instance > if (argc == 3) { > if (strcmp(argv[1], "set-target") == 0) { > target_ = (NsObject*)(TclObject::lookup(argv[2])); > printf("Setting MyAgent target_ to %s\n", argv[2]); > if (target_ == NULL) { > tcl.add_errorf("MyAgent target_ was NULL: %s", argv[2]); > return TCL_ERROR; > } > return(TCL_OK); > } > } > return (Agent::command(argc, argv)); > } > -------------------------------------- > > Then, in tcl I do something like this: > -------------------------------------- > set n1_old_entry [$n1 entry] ;# points to classifier_ > $n1 insert-entry [new RtModule] $my_agent > $my_agent set-target $n1_old_entry > -------------------------------------- > > However, when I attept to send a packet across N1, I get a Bus Error. > Any ideas? Am I going about this all wrong? > > Thanks in advance! > > Brad > > On 7/13/06 1:45 AM, "Brad Montgomery" <[EMAIL PROTECTED]> wrote: > >> >> All, >> >> I would like to write an Agent that inspects all packets that pass >> through >> the node to which it is connected. For example: >> >> Given the topology, >> >> N0 - N1 - N2 >> >> An Agent attached to N1 would execute it's recv() function even if N2 was >> sending a packet to N0. Is this possible? If so, any pointers to >> examples >> or descriptions would be greatly appreciated! >> >> Also, as a new NS user, I'm still a little unsure of the exact "path >> through >> the ns code" that a packet takes on it's way from a sender to a >> destination. >> Is there a more succinct description of this process than what is in the >> ns >> documentation? >> >> Thanks! >> >> Brad >> > > > -- View this message in context: http://www.nabble.com/Processing-packets-at-intermediate-nodes-agents.-tf1935439.html#a8706600 Sent from the ns-users mailing list archive at Nabble.com.
