https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6430
--- Comment #7 from Anders Broman <anders.broman@xxxxxxxxxxxx> 2011-10-05 10:06:23 PDT ---
(In reply to comment #6)
> (In reply to comment #5)
> >
> > To be clear on your comments, in order for a change similar to this
> > to be accepted, I need to submit changes for BRP and the other protocol that
> > uses this UDP port and make them both heuristic?
> >
> (Jumping into this conversation and hopefully not confusing the issue).
> Unless I'm missing something, there doesn't appear to be any actual Wireshark
> dissector registered on UDP port 1958.
> However I do see that this port is officially assigned by IANA[1] as follows:
> dxadmind 1958 tcp CA Administration Daemon [John_Birrell]
> dxadmind 1958 udp CA Administration Daemon [John_Birrell]
> This may be what Anders was referencing when he said "registered to a different
> protocol" in [2] although I'm not sure.
> [1]http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xml
> [2]https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6428#c7
> As Jaap indicated, this can be handled by adding a heuristic registration to
> your dissector.
> Another way (as Anders suggested): Add a port preference [which is by default 0
> and thus the dissector is (by default) not registered].
> See epan/dissectors/packet-lsc.c for a fairly simple example.
> IMHO: Using a port preference would be acceptable.
> P.S.: Note that I recently committed some minor changes to the BRP dissector
> source.
Exactly :-)
I think we should be more restrictive with the port assignments as we do
get complaints about "wrong dissectons"
It's not ideal as some one not in the know will not set the port preference
but perhaps the least bad way...
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