I have to disagree on that. NATs is the problem and I am one of the causes of that problem as one of the principals behind RFC 1918. What has happened is that HTTP has become the transport for the Internet. Very bad in a number of ways. But for another time. Perhaps. Right now I have to deal with a new ISP that was on the road to static IPv6 when somehow the lead engineer kind of stopped responding to emails and I won't find out the details until IETF later this month. On 03/09/2015 04:58 AM, Joseph L. Brunner wrote: > +1 > > IPv6 = solution looking for a problem. > > Disabled on all our systems! > > -----Original Message----- > From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Chris Stone > Sent: Monday, March 09, 2015 01:15 AM > To: CentOS mailing list > Subject: Re: [CentOS] Centos 6 - disabling IPv6 addressing > > 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 >> > > > -- > Chris Stone > AxisInternet, Inc. > www.axint.net > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > >