There used to be a kafka dissector that I thought was shipped with Wireshark - does that decode this properly? I wasn’t certain if you were trying to decode it yourself or if the kafka dissector wasn’t working.
I wrote something up here about using the dissector, but it’s been almost a decade since then… -Steve > On Oct 27, 2024, at 12:42 PM, Chain Head <mrchainh...@gmail.com> wrote: > > (Apologies - I sent the same mail to the dev mailing list by mistake!) > > Hello, > I set-up a simple Java client to publish a sample message to Kafka broker. > I can see API Versions request v3 and response messages. I am able to map > all the bytes as described here > (https://kafka.apache.org/protocol.html#The_Messages_ApiVersions) for > API > Versions request and response except for 1 byte as shown below. > > - Length - INT32 > - Correlation ID - INT32 > - Error code - INT16 > - ? - 1 byte value 0x3c > - Array of API keys, supported versions and tagged fields > - Throttle - INT32 > - Tagged fields. > > Can you please help me understand? > > Thanks.