On Tue, Oct 28, 2003 at 11:51:59PM +0000, Christian Weisgerber wrote: > Hajimu UMEMOTO <ume_at_mahoroba.org> wrote: > > > Our default of net.inet6.ip6.v6only was off in 4.X, and was changed to > > on on 5.X to follow NetBSD's practice. This behavior on 5.X breaks > > RFC2553/3493, and the change was intentional from security > > consideration. But, NetBSD changed it off by default. > > OpenBSD's behavior is equivalent to v6only on, and OpenBSD doesn't > even provide a knob. > > Note that the default choice has a major impact on 3rd party software > (ports). If we ship with a default of v6only off, then people will > not fix software to open two sockets. This in turn means that > turning v6only on will break this software. I predict that a good > many people will then consider the v6only option to be useless. I can second this. The first time I noticed this mistake in self written software was when I tested it on NetBSD, where the default was already to v6only while FreeBSD still had it off. -- B.Walter BWCT http://www.bwct.de ticso_at_bwct.de info_at_bwct.deReceived on Wed Oct 29 2003 - 03:41:58 UTC
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