[ns] Nodes not receiving broadcast message

[Sidney Doria]

Hi Mukaka and all,

 try to add this

 ch->direction()  = hdr_cmn::DOWN;
 ch->next_hop() = MAC_BROADCAST;

 Sidney Doria

 2008/3/12, Nur Aini Rakhmawati <khaulah_tc at yahoo.com>:

>
 >  in my protocol code, the addr_type is NS_AF_INET
 >  I define the port number as well
 >  here is my broadcast code :
 >
 >  http://nuraini.net/2007/09/16/unicast-and-broadcat-packet-on-ns2/
 >
 >  it works for me :)
 >
 >  ---------------
 >  Nur Aini Rakhmawati
 >  Touch the sky, Down to the earth
 >  http://nuraini.net/
 >
 >  ----- Original Message ----
 >  From: SS Mukaka <ssmukaka at gmail.com>
 >  To: ns-users at ISI.EDU
 >  Sent: Tuesday, March 11, 2008 10:16:50 PM
 >  Subject: [ns] Nodes not receiving broadcast message
 >
 >
 >  I want to send a broadcast message to neighbours.... I'm having a problem
 >  because the nodes are not receiving the message if I put ih->daddr() =
 >  IP_BROADCAST;
 >  I have tested it by putting ih->daddr() = 1; and it worked... ie. node 1 was
 >  able to receive the message.. Below is my code for sending and also for
 >  receiving
 >
 >  void ReQuest::sendREQUEST()
 >  {
 >
 >       Packet* p = Packet::alloc();
 >       struct hdr_cmn* ch = HDR_CMN(p);
 >       struct hdr_ip* ih = HDR_IP(p);
 >       struct hdr_MyPacket* ah = HDR_MyPacket(p);
 >       ch->size() = IP_HDR_LEN + ah->size();
 >       ch->addr_type() = NS_AF_NONE;
 >
 >       ih->daddr() = IP_BROADCAST;
 >       ih->saddr() = index;
 >       ah->MyPacket_type = ReQ;
 >       Scheduler::instance().schedule(target_, p, 0.0);
 >  }
 >
 >  My receive function is as follows:
 >
 >  void ReQuest::recv(Packet* p, Handler*)
 >  {
 >   struct hdr_cmn* ch = HDR_CMN(p);
 >   struct hdr_ip* ih = HDR_IP(p);
 >   struct hdr_MyPacket* ah = HDR_MyPacket(p);
 >   nsaddr_t src = ih->saddr();
 >   printf("Node %d receiving data packet from %d \n", index, src);
 >
 >  // processing packet
 >  }
 >
 >  like i said,  nodes can only receive messages if i put the IP address of the
 >  receipient but when i use IP_BROADCAST, nothing is received...
 >
 >  Thank you in advance
 >
 >
 >
 >
 >
 >
 >       ____________________________________________________________________________________
 >  Never miss a thing.  Make Yahoo your home page.
 >  http://www.yahoo.com/r/hs
 >
 >



--
 Sidney Doria
 Redes ad hoc móveis
 Mestrado em Computação
 UFCG
 Brasil

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