[Andrej van der Zee <andrejvanderzee@xxxxxxxxx>]

>> Shouldn't the heuristic sub-dissector for DCERPC be favored over the
>> port-registered GTP dissector?
>
> *If* "Try to decode a packet using an heuristic sub-dissector before using a sub-dissector registered to a specific port" is set for TCP, yes, it should be.

Indeed, this TCP-option was switched off. After switching it on, it
works as expected. Thanks for pointing this out.

Cheers,
Andrej