Wireshark · Wireshark-users: Re: [Wireshark-users] question about WAP protocol data packet

[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hi,

The dissectors simply counts how many sub PDU's were seen.
So it's not read from the packets data, but deferred from the sub PDU 
lengths.

Thanx,
Jaap

guyonghao wrote:
> hi,
>  
> inclosure is a picture for the data packet of WAP protocol capturing 
> by ethereal.
>  
> The situation is that WTP PDU is concatenated, and my question is about 
> the green part.
>  
> if the "PDU count: 3" stands for, I guess, the number of all sub PDUs, 
> why there is no ASCII indication in corresponding data packet?
>  
> Could you tell me where "PDU count: 3" is from? How can you parse it 
> from the data packet?
>  
> Please reply ASAP.
>  
> Gu