Snoop not working with ns-2.1b4a

[Vinaychandra - Shankarkumar <v0s5080@cs.tamu.edu>]

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Hello,
   I am using the current release of ns (allinone-2.1b4a). Snoop does not seem
to be working in this release.
   
   I am using a simple topology, but getting a core dump.(script attached to
this email) I also tested a simple script provided in tcl/ex/snoop/., which
also dumps core! Am unable to debug this problem.

   Does someone know of this? or Can someone help me?

thanks,
Vinay.

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# main()
 
set ns [new Simulator]
 
#Topology()
# node1 ==========  node2 --------- node3
 
set node1 [$ns node]
set node2 [$ns node]
set node3 [$ns node]
 
$ns duplex-link $node1 $node2 10Mb 1ms DropTail
 
lappend nodelist $node3
 
set lan [$ns make-lan $nodelist 10Mb 1ms LL Queue/DropTail Mac/Csma/Ca Channel]
$lan addNode [list $node2] 10Mb 1ms LL/LLSnoop Queue/DropTail Mac/Csma/Ca
 
# This works !
#$lan addNode [list $node2] 10Mb 1ms LL Queue/DropTail Mac/Csma/Ca
 
#Sources
 
set tp1 [$ns create-connection TCP/Reno $node1 TCPSink $node3 0]
set source1 [$tp1 attach-source FTP]
$ns at 1.0 "$source1 start"
$tp1 set tcpTick_ 0.5
Snoop set snoopTick_ 0.1
 
$ns at 10.0 "exit 1"
$ns run


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