> Based upon my experience and what I've heard from others, it is indeed the
> hardware, I've no idea about other serial boards however, but I'd love to
> be able to drive my IPX at 57600 or greater to take advantage of 28.8 +
> compression, last time I tried it I had nothing but problems.

We drive SunOS SS2's at 76.8K using PPP without too many problems. You
have to do a binary patch to get that speed (under SunOS, at least) but
it works fine. Peak we've seen through it with V.FC modems is ~ 6K/s
using ftp. I'd be suprised if NetBSD couldn't get the same speed.

Anthony