Subject: Re: dumping options TCP_COMPAT_42
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Manuel Bouyer <>
List: tech-net
Date: 11/12/2006 12:08:23
On Sun, Nov 12, 2006 at 02:19:06AM -0500, der Mouse wrote:
> > You seem to believe there are pure 4.2 stacks still out there, but
> > there aren't.
> I don't believe you have the evidence to back that up.  I don't believe
> anyone can.  There simply is no way to know what is still running in
> legacy applications.  There are PDP-11s still out there; heck, I think
> there are still PDP-8s out there.  I'd be astonished if there weren't
> 4.2 stacks still in live use.

I think it's quite possible. Especially if these have a special communication
board that can not be used in newer systems.
It's not uncommon to see very expensive equipements (e.g. in physic or chemic
labs) connected to a computer via a custom communication board, for
which a PCI version doesn't exists (and you wouldn't have the driver

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference