  This paper introduces a novel Wireshark dissector designed to facilitate the
analysis of Service-Based Interface (SBI) communication in 5G Core Networks.
Our approach involves parsing the OpenAPI schemes provided by the 5G
specification to automatically generate the dissector code. Our tool enables
the validation of 5G Core Network traces to ensure compliance with the
specifications. Through testing against three open-source 5G Core Network
projects, we identified several issues where messages deviate from
specification standards, highlighting the significance of our implementation in
ensuring protocol conformity and network reliability.
