>Date: Sun, 31 Jan 1999 22:43:21 +0200
>From: Jukka Marin <jmarin@pyy.jmp.fi>
>
>I know this can be caused by a dropped PPP link - but why does it happen
>while ftp is transferring data happily all the time?  If I start ftp,
>this will start happening again at 4-minute intervals (dependent on the
>LCP configuration, I guess).  If I stop ftp, the link stays up for days.

This sounds like the problem described in PR kern/5901.

http://www.NetBSD.org/cgi-bin/query-pr-single.pl?number=5901

The PR contains a patch, maybe you could try it out and see if it
helps...

Cheers,
entropy

--
entropy -- it's not just a good idea, it's the second law.