Re: Centos 6 - disabling IPv6 addressing

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On 03/09/2015 12:55 AM, Ryan Wagoner wrote:
On Fri, Mar 6, 2015 at 11:52 AM, Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>
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

Added this, did a 'service network restart' and still seeing the IPv6 addr.


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