Wireshark-dev: Re: [Wireshark-dev] Get packet data from previous packet
From: Graham Bloice <[email protected]>
Date: Fri, 15 Jun 2007 14:48:09 +0100
Stratemeier, Frank wrote:
> Hi there!
>  
> I am developing a dissector for a PLC communication protocol which is
> transported via tcp or udp.
> For correct interpretation it is necessary to know the question to a
> reply, i.e. i need to access the data from one of the previous packets.
>  
> Is there some mechanism that i can use?
>  
> find_packet in file.c doesn't really seem to be made for this..
>  
>  
> Any help is appreciated :)
> 

Search for conversations in the developers guide.  This will allow you to
track both sides of the conversation.

Out of interest which protocol is it?

-- 
Regards,

Graham Bloice