Re: Exim and IPv6 Help

[Sheldon Hearn <sheldonh@starjuice.net>]

On Thu, 12 Jul 2001 16:19:18 +0200, Sheldon Hearn wrote:

> I've just double-checked, and Exim's definitely binding to the
> wildcard address in such a way as to accept both IPv4 and IPv6
> connections.
> 
> Note, however, that I have the system tunable (sysctl)
> net.inet6.ip6.v6only set to 0.

Just to clarify, with net.inet6.ip6.v6only set to 1, I see exactly the
same behaviour as Kevin sees on his OpenBSD box.  This value default to
0 in FreeBSD and doesn't seem to be tunable in OpenBSD.

However, this doesn't look like "a shortcoming in OpenBSD".  Rather, it
seems to me that Exim should use one socket per family at least.  That's
certainly what most of the IPv6-enabled code in the FreeBSD base system
appears to do, and some even uses one socket per address.

Ciao,
Sheldon.