[ns] Wireless Broadcast - not able to receive the broadcasted messages

[savan kiran]

I'm trying to implement my own routing protocol based on AODV.
I ve used the same neighbor discovery method as AODV.
But when i broadcast the messages , the receiver is not able to get it.
Also wen i send it unicastingly, even then it aint working.
Is it a prerequisite that there has to be links b/w nodes for the neighbor
discovery to work?
if so, it really compromises my purpose.
In tcl script, i jus add a few wireless nodes and wait for the hello pkt
exchange to get over so that neighbor_list gets populated.
It jus doesn't work.
Is there anything i'm missing out. Plz help me out.
I ve read a lot of posts abt this, but none has helped me so far.

COde snippet for broadcast :

 hel->hel_type = EAMMHTYPE_HELLO;
 hel->hel_src = index;

 ch->ptype() = PT_EAMMH;
 ch->size() = IP_HDR_LEN + hel->size();
 ch->iface() = -2;
 ch->addr_type() = NS_AF_NONE;
 //ch->direction() = hdr_cmn::DOWN;
 //ch->next_hop_ = -2;
 ch->error() = 0;
 ch->prev_hop_ = index;

 ih->saddr() = index;
 ih->daddr() = IP_BROADCAST;
 ih->sport() = RT_PORT;
 ih->dport() = RT_PORT;
 ih->ttl_ = 1;

Scheduler::instance().schedule(target_, p, 0.0);

Code snippet for unicast:

     ch->ptype() = PT_EAMMH;
     ch->iface() = -2;
     ch->addr_type() = NS_AF_INET;
     ch->prev_hop_ = index;          // AODV hack
    ch->direction() = hdr_cmn::DOWN;

     ih->saddr() = index;
     ih->daddr() = nb->nb_addr;
     ih->sport() = RT_PORT;
     ih->dport() = RT_PORT;

     Scheduler::instance().schedule(target_, p, 0.);

 The code compiles properly, so it seems like a logicaly error in packet
flow down the layers or something.
-- 
$@V@N