Mikrotik Winbox Protocol Dissector for Wireshark

Note: This only works on "non-secure" sessions as specified by the client

Installation is Simple

• LUA-based dissector, no recompilation necessary
• Drop the Winbox_Dissector.lua file into your /$HOME/.wireshark/plugins folder.

Usage

By default, any TCP traffic to/from TCP port 8291 will be decoded as Winbox traffic once the dissector is installed.

While a single message from the client/server to its destination would be preferable for parsing purposes. This is not always the case, observing live communications proved that there are many ways that Winbox Messages can be formatted and sent.

Below is an example of a Winbox communications capture that has the following properties:

• Multiple messages sent in the same packet.
• Messages containing 1 or more 2-byte "chunks" that need removal before parsing
• Messages too long for a single packet -- TCP reassembly applied.
• Messages containing additional "nested" messages

Without Dissector Installed

With Dissector Installed