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> **Note**: This Lua script may cause a crash in the newest version of Wireshark, see [#18439](https://github.com/apache/pulsar/issues/18439). Make sure the version of Wireshark is earlier than v4.0.0.

# How to use 

## Step 1: prepare PulsarApi.proto file
You need to put PulsarApi.proto to a separate path.

1. Open your Wireshark.

2. Go to **Edit > Preferences > Protocols > ProtoBuf > Protobuf**, and then search paths.

3. Add the path of PulsarApi.proto.

4. Check `Dissect Protobuf fields as Wireshark fields` box. When this box is checked, 
you can use `pbf.pulsar.proto` to visit fields in protobuf package.  

## Step 2: add pulsar.lua to plugins

1. Open Wireshark.

2. Go to **About Wireshark > Folders > Personal Lua Plugins > Plugin Path**.

3. Add pulsar.lua to this path.

## Step 3: start to use

This plugin registers a Pulsar protocol automatically in 6650. You can use this Wireshark filter string to find out Pulsar packages (ignore ping/pong):

```
tcp.port eq 6650 and pulsar and pbf.pulsar.proto.BaseCommand.type ne "ping" and pbf.pulsar.proto.BaseCommand.type ne "pong"
```