disabling ipv6 with ppp

[Hanspeter Roth]

  On Mar 21 at 13:55, Brian Somers spoke:

> Use ``disable ipv6'' - see the man page.
> Put ``NOINET6=true'' in /etc/make.conf to make IPv6 go away entirely.

I've built ppp in /usr/src/usr.sbin/ppp with NOINET6 and installed
it in /usr/sbin. 
The route ff02::%tun0/32 is still present.
But the dialup connection after 22 seconds has disappeared. So this
has helped me.
Thanks!

-Hanspeter