How to find the ethernet dissector.

Question

In previous Lua code we would do the following

    --
    -- This is not a COMEX message. Get the default dissector and invoke it.
    --
local default_dissector = Dissector.get( "eth" )
default_dissector:call( tvb , pinfo , tree )

We would call the ethernet dissector if we chose to not analyze this.

This work with 2.0.x versions of Wireshark

Now we are getting an error with 2.2.0

What are we doing wrong ?

Answer 1

The name has been changed:

  register_dissector("eth_withoutfcs", dissect_eth_withoutfcs, proto_eth);
register_dissector("eth_withfcs", dissect_eth_withfcs, proto_eth);
register_dissector("eth_maybefcs", dissect_eth_maybefcs, proto_eth);

You probably want “eth_withoutfcs”