[ns] new multicast packet header

[Lori Flynn <lori@cse.ucsc.edu>]

Hi all,

I am creating 1)a  new mcast packet header and 2) a new agent to deal with
receiving and sending these packets with the new headers.  I have followed
the Marc Greis example in order to make this work.  (section 7 of the
tutorial)

However, when I try to run a script which creates the new agent, I get
this error:  
warning: no class variable Agent/Mcast/Control::packetSize_
        see tcl-object.tcl in tclcl for info about this warning.
warning: no class variable Agent/Alert::off_ping_
        see tcl-object.tcl in tclcl for info about this warning.


Looking at 'tcl-object.tcl', it says that the Otcl/C++ link didn't work
because there was no variable declared.  However, following the Greis
example, packetSize_ is not explicitly 'declared', other than defining the
size in the ns-default.tcl file and binding it to size_ in the ping.cc
file.  'off_ping_' is declared in ping.h, then bound in ping.cc and
mentioned in ns-packet.tcl.  

Do I need to do more for ns2 to see my variables?

Thanks,
-Lori