Comment by Cilyan for This might be a limitation in Lua.In C, you can use the data parameter of a dissector, to pass a pointer to your own data structure. Obviously both caller and calle must know how the data is structured as it's passed as a void*, but I don't see that parameter in the Lua API.

Thanks for the quick reply. Indeed. I created a subdissector that would accept an additional parameter, but I get `nil` on it. Any chance to get an improvement or use another method? I can't consider implementing the protocol in C for the moment, unfortunately.