Try: sysctl -w net.ipv6.conf.all.accept_ra=1 to persist between boots, be sure to add this to your /etc/sysctl.conf file. This should prevent the box from listening to any RA announcements. Chris On Sun, Mar 8, 2015 at 10:55 PM, Ryan Wagoner <rswagoner at gmail.com> wrote: > On Fri, Mar 6, 2015 at 11:52 AM, Robert Moskowitz <rgm at htt-consult.com> > wrote: > > > > > > > On 03/06/2015 11:00 AM, Robert Moskowitz wrote: > > > >> > >> > >> On 03/06/2015 10:55 AM, Barry Brimer wrote: > >> > >>> > >>> > >>> IPV6INIT="no" > >>>> > >>>> But I am still getting a global IPv6 (and of course local scope). > >>>> > >>>> What else do I need to do to disable the listening for RA > announcements > >>>> > >>>> and setting an IPv6 global address? I do not want to reboot the box. > >>>> > >>> There are other modules, most notably bonding that rely on the ipv6 > >>> module being loaded. What I do is place "options ipv6 disable=1" in > >>> "/etc/modprobe.d/ipv6.conf". That does require a reboot, which I know > you > >>> are looking to avoid, so you may want to try other methods to remove > your > >>> address in the running configuration. > >>> > >> > >> 'All' I need is for the system not to have a global IPv6 address. Then > it > >> will not try to connect to other global IPv6 systems which will reject > the > >> connection, as the IPv6 rDNS cannot be set, given it is a dynamic IPv6 > >> assigned address from the ISP. > >> > > > > I tried: > > > > # cat /etc/sysconfig/network > > NETWORKING=yes > > HOSTNAME=z9m9z.htt-consult.com > > NETWORKING_IPV6=no > > IPV6INIT=no > > > > > > and 'service network restart' but still showing IPv6 addressing. > > > > I would try adding the below line to /etc/sysconfig/network. > > IPV6_AUTOCONF=no > > Ryan > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- Chris Stone AxisInternet, Inc. www.axint.net