Ethereal-users: Re: [Ethereal-users] HDLC Capture

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

Date Index Thread Index Other Months All Mailing Lists
Date Prev Date Next Thread Prev Thread Next
From: Guy Harris <gharris@xxxxxxxxx>
Date: Tue, 18 Oct 2005 04:37:17 -0700
mark.dixon wrote:
I’m trying to find out how to capture and display HDLC packets – can anyone help? 

For capturing:

	What type of link is the HDLC traffic being sent?
You might be able to capture it using a DAG card from Endace Measurement Systems: 

	http://www.endace.com/
However, you'd also need to introduce a new DLT_ value for that capture type, if it's not "Cisco HDLC" or "PPP in HDLC-like encoding".
Then Ethereal would have to be modified to be able to recognize that DLT_ value as "generic HDLC", and you'd need to write a dissector that registered to dissect that "generic HDLC". 

What's running on top of HDLC in your application?