I'm looking to capture HDLC packets between two CISCO routers.
I've been asked to practically assess the difference between CISCO HDLC and
3COM HDLC as part of a university assignment.
It's really just there to support the theory and documented evidence
available on the subject.
-----Original Message-----
From: ethereal-users-bounces@xxxxxxxxxxxx
[mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Guy Harris
Sent: 18 October 2005 12:37
To: Ethereal user support
Subject: Re: [Ethereal-users] HDLC Capture
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?
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