[Guy Harris <guy@xxxxxxxxxx>]

> Just wanted to update you on what I tried.  Based on what you said about
> the version of libpcap, I downloaded and built libpcap 0.5, and the
> rebuilt ethereal.  When I did this and copied it over to my target
> machine, from the capture dialogue box pull down menu, I could only
> select eth0 and lo0.  This was weird.  I tried the ethereal version
> built with libpcap 0.4, and the same thing happened with selecting
> interfaces.  It seems only that the ethereal version built with libpcap
> 0.4a6 can see the ATM interfaces in the capture menu.

"libpcap 0.4a6" as in "libpcap 0.4a6 downloaded from ftp.ee.lbl.gov
before they came out with the final 0.4 release, and completely
unmodified", or "libpcap 0.4a6" as in "a version of libpcap 0.4a6 that
has had the patches from the 'extra' directory of the Linux ATM
distributions from

	http://lrcwww.epfl.ch/linux-atm/

applied"?

Vanilla 0.4a6 didn't have any Linux ATM support, just as 0.4 and 0.5
don't; if the source to the libpcap 0.4a6 in question has references to
DLT_ATM_CLIP in it, it's been patched to have Linux ATM support added. 
(However, one should apply the patches to libpcap 0.4 - or 0.5, although
you may have to manually fix the patches up.)