similar to: Disabling IPv6 Auto Configuration

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

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'

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

+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

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

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 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).

I want to configure IPV6 on the system and not use some auto ipv6 config. I have tried to use IPV6_AUTOCONF=no in interface script dose not affect anything. ifcfg-eth0: GATEWAY=192.168.1.254 IPV6INIT=no IPV6_AUTOCONF=no BROADCAST=192.168.1.255 BOOTPROTO=none NAME="" NM_CONTROLLED=yes MACADDR="" TYPE=Ethernet DEVICE=eth0 NETMASK=255.255.255.0 MTU="1500"

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 A few months back, I tried to use the network scripts to provision an IPv6 range like can be done with IPv4. I was using CentOS 5.2 at the time and was informed that 5.2 was broken in this regard. I have upgraded to CentOS 5.3 now and I am trying to get IPv6 to provision an entire range of IPs, but I am still getting the old behavior and no IPs are

I've made 3 CentOS 7 installation attempts to configure a simple firewall/router box with 2 nics. I got myself into a circular scenario where NetworkManager and firewalld and /etc/sysconfig/network-scrpts/ifcfg-***** were interfering or overwriting each other. Needed to perform ifdown enp3s7 on the internal LAN nic in order to make the external internet enp2s0 reach websites and ping

Hi there, While I was looking "how to disable ipv6 under centos" I have found a gazzillion pages about how to do it and some of then even list things that i am not sure where they came from, so for the record I list most of them here in case someone else need them. Some of the methods involved the direct modification of system scripts, and I am against that so I wont list them here

Hi, I have an eth0 interface (it's a CentOS 6 guest VM on a KVM host) which is configured as follows (see below) with a primary public IP address of xxx.xxx.xxx.130 (which works fine). I cannot set an alias IP address. I want eth0 to also use another IP address (xxx.xxx.xxx.131, so I create /etc/sysconfig/network-scripts/ifcfg-eth0:1. Then: # service network restart Shutting down

> On 03/09/2015 01:15 AM, Chris Stone wrote: >> >> sysctl -w net.ipv6.conf.all.accept_ra=0 On 03/10/2015 06:52 AM, Robert Moskowitz wrote: > No change after running this and trying both: > > system network restart it's: service network restart Try also setting these in sysctl: net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1

Hello /etc/sysconfig/network-scripts/ifcfg-eth0 looks like this: # Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) TYPE=Ethernet NAME=eth0 NM_CONTROLLED=no IPV4_FAILURE_FATAL=yes UUID=cc2635ff-3c14-48ba-b19a-84c5b9d36a9d ONBOOT=yes DEVICE=eth0 BOOTPROTO=none HWADDR=00:50:56:01:00:01 BROADCAST=192.168.0.255 IPADDR=192.168.0.10 NETMASK=255.255.255.0 NETWORK=192.168.0.0

I want to seriously work with IPv6 and not have stray IPv4 functions messing with me. So in /etc/sysconfig/network, I commented out NETWORKING=yes. I have NETWORKING_IPV6=yes. In /etc/sysconfig/network-scripts I altered ifcfg-eth0, setting BOOTPROTO=none. That was enough for eth0 to only have IPv6 working on it (have IPV6INIT=yes and IPV6_AUTOCONF=yes). But lo had IPv4. So I commented

On Wed, 21 Oct 2015 10:20, Rafa? Radecki <radecki.rafal at ...> wrote: > Hi All :) > > I have three servers, all with centos 7 installed 3 days ago. I need on > them "old" naming scheme (ethX) for network interfaces, because of that: > > # grep GRUB_CMDLINE_LINUX /etc/sysconfig/grub > GRUB_CMDLINE_LINUX="rd.lvm.lv=centos_node-XY/swap

Once upon a time, Kenneth Porter <shiva at sewingwitch.com> said: > I just got 50 Mbps symmetric fiber from AT&T and it includes a /56 > of IPv6 addresses, replacing a much slower ADSL line. I never tried > to get IPv6 working on the old connection. I'm using CentOS 7 as a > gateway and it's worked great for several versions for IPv4. > > I'm not seeing any

> First off, I assume you can ping your link-local address: > > ping6 -I eth1 fe80::a00:27ff:fe03:5b8a > > Second, you never mentioned how eth1 was assigned its IPv6 address. > Given that you've tried to embed an IPv4 address within an IPv6 address > (which is normally done with a 0:0:0:0:0: prefix), I'd guess you did it > manually. If so, with what tools?

Hello, in /etc/sysconfig/network-scripts/ifcfg-eth0 I have this <ifcfg-eth0> ... IPV6INIT=yes IPV6ADDR=prefix::5 IPV6ADDR_SECONDARIES="prefix::2 prefix::3 prefix::4" IPV6_AUTOCONF=no IPV6_DEFAULTGW=prefix::1 IPV6_DEFAULTDEV=eth0 </ifcfg-eth0> when I enter ifconfig the IPv6 addresses are in a different order <ifconfig> eth0 Link encap:Ethernet HWaddr ... inet addr:...

On 03/09/2015 03:24 PM, Peter wrote: >> On 03/09/2015 01:15 AM, Chris Stone wrote: >>> sysctl -w net.ipv6.conf.all.accept_ra=0 > On 03/10/2015 06:52 AM, Robert Moskowitz wrote: >> No change after running this and trying both: >> >> system network restart > it's: service network restart Typo. My dsyelxia at work again. > > Try also setting these