How about, in your /etc/sysconfig/network file adding or editing the line for IPV6 to be: NETWORKING_IPV6=no and then try a 'service network restart' and see what you get. Chris On Mon, Mar 9, 2015 at 11:52 AM, Robert Moskowitz <rgm at htt-consult.com> wrote: > No change after running this and trying both: > > system network restart > > ifdown eth0; ifup eth0 > > Still having an IPv6 addr. > > The box has been up for 140 days. Would like to keep it running... > > This box is really Redsleeve 6, which is the port of Centos 6 to arm. The > kernel I am using is the F19 kernel. All of this MIGHT be contributing to > things not working as they would on a 'normal' Centos box. I am awaiting > the start of the Centos7-arm work ;) > > > On 03/09/2015 01:15 AM, Chris Stone wrote: > >> Sorry - that should be >> >> >> sysctl -w net.ipv6.conf.all.accept_ra=0 >> >> to disable that, not 1. >> >> >> Chris >> >> >> On Sun, Mar 8, 2015 at 11:14 PM, Chris Stone <axisml at gmail.com> wrote: >> >> 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 >>> >>> >> >> > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- Chris Stone AxisInternet, Inc. www.axint.net