> Log:
>  From Don Newton:
>  Set default port of Unistim back to 5000; The Unistim dissector is made a 
> heuristic dissector.
> 

Comment from the original code:
/* Don't set this to 5000 until this dissector is made a heuristic 
one!     static guint global_unistim_port = 5000;
            It collides (at least) with tapa. */

It appears to me that, strictly speaking, the rev 26904 change does not 
convert the unistim dissector to a heuristic dissector but to to a "new 
style" dissector (with some heuristic tests).

In any case, since dissector_add is still used to register port 50000 on 
udp.port, the collision with tapa (as well as some other dissectors) 
still exists.


I could make the change to actually register the dissector as a 
heuristic one instead (via heur_dissector_add).

However, the just added heuristic seems quite minimal:

  Either [0,1] in the first byte or [2],[0-3,ff] in the first two bytes
  seems to me to be a rather weak heuristic.

Would adding a check for port 5000 (or whatever from the pref) as part 
of the heuristic make the heuristic "strong enough" ?

If it's not possible to strengthen the heuristic, I'm inclined to revert 
this change given various previous EMails & etc on this subject.

Comments (or am I missing something) ??


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