[ns] Broadcast in Wired network?

["YUE,ZI" <ziyue@ucla.edu>]

Does ns2 routing moduleod Wired network support IP_BROADCAST?
 I tried to do broadcast in c++ code of mobsecagent (derive from agent
class) 
as following:
{
...
iph->daddr() = IP_BROADCAST
iph->ttl() = 1;
target_->recv(p, (Handler*) 0);
...
}

but I get the following error message when I run a tcl file for Wired
network and 'ns' aborts

_o11: no target for slot -1

---------------------------
I'm not sure if my c++ code or tcl file is wrong? Can I use node-config
command for wired node?

I attach my tcl file as following:

---
set ns_ [new Simulator]


#
# Load the scenario file and parameters file
#

set val(chan)   Channel
set val(netif)  Phy/WiredPhy
set val(mac)    Mac/Csma/Cd
set val(ifq)    Queue/DropTail
set val(ll)     LL
set val(ifqlen) 50


source $val(pr)


#
# Predefine tracing
#
set log_ [open "ziyue.log" w]
$ns_ trace-all $log_


#
# Create channel
#
puts "create channel"
set chan_1 [new $val(chan)]
puts "finish create channel"

#
# Configure node
#
#$ns_ node-config -llType $val(ll) \
#                 -macType $val(mac) \
#                 -ifqType $val(ifq) \
#                 -ifqLen $val(ifqlen) \
#                 -phyType $val(netif) \
#                -channelType $val(chan) \
#                 -agentTrace OFF \
#                -routerTrace OFF \
#                 -macTrace OFF \
#                -channel $chan_1

#
# Define the port the agent will listen to
#
set secport 100


#
# Create some nodes
#
puts "create nodes"
for {set i 0} {$i < $val(nn) } {incr i} {
        set node_($i) [$ns_ node]
}
puts "finish create nodes"

$ns_ rtproto Static

$ns_ make-lan "\
$node_(0) $node_(1) $node_(2) $node_(3) $node_(4)\
$node_(5) $node_(6) $node_(7) $node_(8) $node_(9)\
$node_(10) $node_(11) $node_(12) $node_(13) $node_(14)\
$node_(15) $node_(16) $node_(17) $node_(18) $node_(19)\
$node_(20) $node_(21) $node_(22) $node_(23) $node_(24)\
$node_(25) $node_(26) $node_(27) $node_(29) $node_(29)\
$node_(30) $node_(31) $node_(32) $node_(33) $node_(34)\
$node_(35) $node_(36) $node_(37) $node_(38) $node_(39)\
$node_(40) $node_(41) $node_(42) $node_(43) $node_(44)\
$node_(45) $node_(46) $node_(47) $node_(48) $node_(49)"\
5Mb 2ms $val(ll) $val(ifq) $val(mac)


#
#
# Create some links
#                 
#puts "create links"
#for {set i 0} {$i < $val(nn) } {incr i} {
#        for {set j [expr $i+1]} {$j < $val(nn) } {incr j} {
#        $ns_ duplex-link $node_($i) $node_($j) 5Mb 2ms DropTail
#        }        
#}               
#puts "finish create links" 


#
# Create some agents
#
...


ns_ run


Sophia