Wireshark · Wireshark-users: Re: [Wireshark-users] [Question] Wireshark packet capture for AT command

[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hi,

It's important to realize that Wireshark gets its data from the network 
capture service which is attached to the NDIS network stack structure.
The interface handling you are talking about (Hayes command/reponse exchanges 
on the serial interface) are processed at a layer below NDIS. Hence these 
cannot be captured, and thus not passed up to Wireshark.
It would require:
1. capture hardware on the serial link, and
2a. mapping into an existing capture file format, or
2b. adding a logformat input filter in the wiretap library.

I'm not aware of any products for that, but there could be.

Thanx,
Jaap

Jay Kim wrote:
> Dear Wireshark,
>
> This is Jay developing connectivity services between mobile devices and PCs.
> For this connectivity, Wireshark supports good analysis tool for PPP frames.
> In general, before the PPP connection between a mobile device and PC,
> AT command is used to set up the initial connection.
>
> This is a kind of string protocol unlke binary format.
> If this AT command is included in the packet capture format, this
> would be very useful to develop and analyze the PC connectivity as
> modem services.
>
> Please give me your valuable opinions on this issue.
>
> Thanks and Regards,
> Jay