Hi Bill,



Thank you for that hint. I'll try it.

Can you explain what the difference to



net.ipv6.conf.all.disable_ipv6 = 1



is?



Do you have an idea why the IPv6 kernel module

is pulled in?



Best regards

Andreas





> -----Ursprüngliche Nachricht-----

> Von: [log in to unmask] [mailto:owner-

> [log in to unmask]] Im Auftrag von Bill Maidment

> Gesendet: Mittwoch, 5. August 2015 11:11

> An: [log in to unmask]; Andreas Mock

> Betreff: RE: IPv6 address popping up

> 

> -----Original message-----

> From:	Andreas Mock <[log in to unmask]>

> Sent:	Wed 05-08-2015 19:00

> Subject:	IPv6 address popping up

> To:	[log in to unmask];

> > Hi all,

> >

> > I hope anybody out there can give me the right hint for a problem

> > I have on a server with SL 6.6 64 bit.

> >

> > I want to have IPv6 totally disabled. Therefore I did the following

> > found on the net:

> >

> > /etc/sysctl.conf  :  net.ipv6.conf.all.disable_ipv6 = 1

> > /etc/sysconfig/network  : NETWORKING_IPV6=no

> > /etc/sysconfig/network-scripts/ifcfg-eth0 : IPV6INIT=no (and other

> ifcfg)

> > iptables6 disabled

> > in /etc/modprobe.d/ipv6.conf with:

> > alias net-pf-10 off

> > alias ipv6 off

> >

> > After reboot all seems ok. No IPv6 address shown with 'ip addr show'.

> >

> > BUT: After some time (hours, days, I don't know), when I look at

> > the ip addresses I can suddenly see that there is a IPv6 address.

> > A 'cat /proc/sys/net/ipv6/conf/all/disable_ipv6' shows 1 in that

> > case. Kernel modules are loaded.

> >

> > Can anyone give me a hint or explanation why IPv6 is suddenly popping

> up?

> > Is there any code/process out there pulling the IPv6 modules into the

> > kernel?

> >

> > Best regards

> > Andreas

> >

> >

> 

> Also in /etc/sysctl.conf

> net.ipv6.conf.default.disable_ipv6 = 1

> 

> Cheers

> Bill Maidment

> www.maidment.me

> Phone: 02 4472 9374