# Problems in writing an analyzer for custom TCP-based protocol

**URL:** <https://community.zeek.org/t/problems-in-writing-an-analyzer-for-custom-tcp-based-protocol/4917>\
**Category:** Zeek\
**Created:** [June 22, 2017, 3:39pm UTC](https://community.zeek.org/t/problems-in-writing-an-analyzer-for-custom-tcp-based-protocol/4917 "2017-06-22T15:39:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Valerio](https://avatars.discourse-cdn.com/v4/letter/v/3be4f8/32.png) [@Valerio](https://community.zeek.org/u/Valerio)\
**Post date:** [June 22, 2017, 3:39pm UTC](https://community.zeek.org/t/problems-in-writing-an-analyzer-for-custom-tcp-based-protocol/4917/1 "2017-06-22T15:39:26Z")

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Hi all,

I am trying to write a simple analyzer with BinPAC for a custom binary  
TCP protocol with the following structure

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\
**Post date:** [May 6, 2022, 3:45pm UTC](https://community.zeek.org/t/problems-in-writing-an-analyzer-for-custom-tcp-based-protocol/4917/2 "2022-05-06T15:45:05Z")

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