Hi,
as pointed by others it is pretty easy to get your dissector called.
But there is possibly another problem: do your ASN.1 messages fit
in a DATA chunk or are you using the segmentation/reassembly feature
of SCTP. Reassembly of SCTP chunks is not yet build in.
For getting your protocol detected the best way is to use the PPID,
I think.
Best regards
Michael
On Jul 27, 2004, at 5:05 PM, Thomas Steffen wrote:
Hi,
I am trying to use ethereal 0.10.5 for debugging a network
application. We use a custom protocol (in ASN.1) over SCTP. It nearly
works, but there are three outstanding issues:
1. I can't get ethereal to analyse the data sent over SCTP (beyond
giving a hex dump). If I send the same date over TCP, I can use
Decode-as->Transport and select ASN1. However, for an SCTP stream, the
Transport tab is not show. I guess this is a simple issue, but I don't
know where to look for it.
2. Is it possible to make ethereal recognise the ASN1 data
automatically?
3. Is it possble to autodetect the PDU type? We have several different
message types, and they are defined as separate ASN.1 types.
Any suggestion would be very much appreciated. If changes to the code
are necessary, I should be able to do that, if someone could point me
into the correct direction...
Yours,
Thomas
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