similar to: CentOS-5.4, KVM, QEMU, Virt-Manager and kvm-qemu-img

CentOS-6.6 We have a host that has multiple IPv4 addresses aliased to eth0. The primary address is 216.185.71.x and the alias is 192.168.6.x. This host connects to devices on both netblocks without problems. Only default routing is used and it looks like this: #ip route 192.168.6.0/24 dev eth0 proto kernel scope link src 192.168.6.x 216.185.71.0/24 dev eth0 proto kernel scope link src

Dear Simon, > And can you diff the config of eno1 and eno4. # pwd /etc/sysconfig/network-scripts # diff -u ifcfg-eno1 ifcfg-eno4 --- ifcfg-eno1??? 2020-09-21 17:23:25.576672703 +0200 +++ ifcfg-eno4??? 2020-09-22 07:18:43.160532532 +0200 @@ -3,15 +3,20 @@ ?BROWSER_ONLY=no ?BOOTPROTO=none ?DEFROUTE=no -IPV4_FAILURE_FATAL=yes -IPV6INIT=no -IPV6_AUTOCONF=no +IPV4_FAILURE_FATAL=no

We use a dual homed CentOS-6.3 host for our Internet gateway router. Its internal nic (eth1) is configured such that the address 192.168.0.1 is one of its aliases. # cat /etc/sysconfig/network-scripts/ifcfg-eth1:192BOOTPROTO=none BROADCAST=192.168.255.255 DEVICE=eth1:192 IPADDR=192.168.0.1 IPV6INIT=no MTU="" NAME="LAN - Non-routable" NETMASK=255.255.0.0 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

Dear Simon, every second IP-address is unwanted. We restarted? eno4: nmcli con down eno4; nmcli con up eno4 and the second address vanishes. Then after a few ours, the second ip address reappears. This is the config-file of eno2: # cat ifcfg-eno2 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=none DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes

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"

I installed a new CentOS-6.3 kvm guest on a recently provisioned kvm host also running CentOS-6.3. This guest will not connect to the network and the host cannot connect to it via its public IP address. I had previously installed a guest system on thst same kvm host using the same ISO and that system connects to the network without problem. I next created a third guest isntance and this too does

I installed a new CentOS-6.3 kvm guest on a recently provisioned kvm host also running CentOS-6.3. This guest will not connect to the network and the host cannot connect to it via its public IP address. I had previously installed a guest system on thst same kvm host using the same ISO and that system connects to the network without problem. I next created a third guest isntance and this too does

Hi, I am facing issue stoping NetworkManager to update resolv.cfg, I am using below configuration for eth0 interface: TYPE=Ethernet BOOTPROTO=dhcp DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no IPV6_ADDR_GEN_MODE=stable-privacy NAME=eth0 UUID=93b90a46-dab5-4a67-8fd0-fefe8874a8b9 DEVICE=eth0 ONBOOT=no PEERDNS=no PEERROUTES=yes

-----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

we would like setup VLAN on CENTOS 5.X and 4.x. Only VLAN will active, but primary LAN NOT active. E.g "eth0" inactive, but "eth0.2" active. I have been tried several ways, but never successful. Any ideal? ______________________________________________________________________________________________________ ?????????Yahoo!??????2.0?????????????

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

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).

> Date: Monday, October 03, 2016 22:00:07 -0400 > From: TE Dukes <tdukes at palmettoshopper.com> > >> From: Gordon Messmer >> Sent: Monday, October 3, 2016 4:25 PM >> >> On 10/03/2016 04:54 AM, TE Dukes wrote: >> > I can get the guest to access the internet but have tried every >> > was possible to be able to access the guest from the LAN

Here is the relevant log snippet: journal: libvirt version: 1.2.8, package: 16.el7_1.3 (CentOS BuildSystem <http://bugs.centos.org>, 2015-05-12-20:12:58, worker1.bsys.centos.org) journal: failed to connect to monitor socket: No such process journal: internal error: process exited while connecting to monitor: ((null):1937): Spice-Warning **: reds.c:3036:reds_init_socket:

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

On Thu, 16 Jan 2020 15:34:43 +0100, Stephen John Smoogen <smooge at gmail.com> wrote: > On Thu, 16 Jan 2020 at 07:58, Asle Ommundsen <aommundsen at gmail.com> > wrote: >> >> Hi, >> >> Tonight I upgraded two CentOS 8 boxes to CentOS 8.1 (1911). Then after a >> reboot of the first server the network was unavailable. In IPMI console >>

On 4/28/2020 3:17 PM, Chris Adams wrote: > - gateway sends a router solicitation and gets a router advertisement > with "stateful config" set, which tells gateway to do DHCPv6 (but > default route comes from RA) I'm not seeing any outbound IPv6 traffic from my CentOS 7 box on the WAN interface. I do see RA's emitting from the LAN interface, from radvd. Is there

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

Hi, I was recently going through the how to located here: http://wiki.centos.org/HowTos/Laptops/WpaSupplicant This how-to shows the steps to follow to get a wifi interface working without using NetworkManager and subsequently how to have wireless working withouth having a user login. Anyways, when going through this I was having issues because everything seemed to work but I was never