On Jan 10, 2009, at 7:41 AM, Anders Broman wrote:
In principe you’d need a card that can capture the D-channel and
write the packets to a file in libpcap format. If such a card is
available
I do not know.
An Endace DAG card:
http://www.endace.com/dag-3.7t-datasheet.html
might be able to do it; libpcap can be built with support for DAG
cards, and a version of Wireshark that uses that version of libpcap
could capture on them.
However, Wireshark doesn't currently dissect LAPD captured from them,
so some work would be needed to have Wireshark dissect the resulting
capture.