Well, big thanks to Martin Husemann who fixed it.

Problem was neither ipv6 nor up/down issues. (The documentation is
correct.), but a timecounter issue (difference between time_second and
time_uptime).

See also:

http://cvsweb.de.netbsd.org/cgi-bin/cvsweb.cgi/src/sys/netisdn/i4b_global.h.diff?r1=1.7;r2=1.8;f=h

Cheers, Zafer.


2007/10/2, Ignatios Souvatzis <ignatios@cs.uni-bonn.de>:
> On Tue, Oct 02, 2007 at 02:32:18PM +0200, Zafer Aydogan wrote:
>
> > inet 0.0.0.0 0.0.0.1 link1 down
> >
> > which should bring up the interface and the connection on demand.
>
> ahem.
>
> remove the down here. Add "up" instead. Unless you tried that already.
>
> The "lcp down" even near the end of your log might be created by that
> "down" keyword.
>
>         -is
>