Looks pretty solid... If nobody chimes in, I would see if anyone is having bridging issues in general with your specific NIC family / device.<br>If this was my setup, I would first disable IPv6 at the kernel level to see if the behavior persists. Hopefully some more seasoned gurus have some better ideas.<br>
<br><div class="gmail_quote">On Wed, Feb 5, 2014 at 6:03 PM, Matt <span dir="ltr"><<a href="mailto:matt.mailinglists@gmail.com" target="_blank">matt.mailinglists@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="HOEnZb"><div class="h5">> I just installed OpenVZ on CentOS 6.x 64 bit following this guide a<br>
> few days ago.<br>
><br>
> <a href="http://openvz.org/Quick_Installation_CentOS_6" target="_blank">http://openvz.org/Quick_Installation_CentOS_6</a><br>
><br>
> I am mostly interested in creating containers with veth interfaces so<br>
> I can assign multiple public IPv4 and IPv6 addresses from inside the<br>
> container. I noticed that when I am logged into the CentOS physical<br>
> server with putty through ssh I can start a container that has a veth<br>
> interface with 'vzctl start 102' and it starts just fine. I can ping<br>
> its IPv4 and IPv6 addresses just fine. However when I issue 'vzctl<br>
> stop 102' my putty ssh connection to the OpenVZ server is dropped and<br>
> I must reconnect. I am able to reconnect just fine. Again, I am<br>
> logged into the OpenVZ master not the container.<br>
><br>
> Can anyone tell me what is going on here? After further testing I<br>
> determined it does not always do it. The first time I stop a<br>
> container after I reboot the master, physical server, it seems most<br>
> prone to act up.<br>
><br>
> ######### just did reboot 30 minutes ago or so............<br>
><br>
> [root@ex1 ~]# vzlist<br>
> CTID NPROC STATUS IP_ADDR HOSTNAME<br>
> 103 92 running - <a href="http://server.example456.com" target="_blank">server.example456.com</a><br>
> [root@ex1 ~]# vzctl start 102<br>
> Starting container...<br>
> Container is mounted<br>
> Setting CPU units: 1000<br>
> Setting CPUs: 1<br>
> Configure veth devices: veth102.0<br>
> Adding interface veth102.0 to bridge vmbr0 on CT0 for CT102<br>
> Container start in progress...<br>
> [root@ex1 ~]# vzlist<br>
> CTID NPROC STATUS IP_ADDR HOSTNAME<br>
> 102 19 running - <a href="http://server102.example.com" target="_blank">server102.example.com</a><br>
> 103 92 running - <a href="http://server.example456.com" target="_blank">server.example456.com</a><br>
> [root@ex1 ~]# vzctl stop 102<br>
> Stopping container ...<br>
><br>
> ############## Here is where I get kicked off putty/ssh......<br>
<br>
<br>
</div></div>[root@ex1 ~]# rpm -qa |grep vz<br>
e2fsprogs-resize2fs-static-1.42.3-3.2.ovz.x86_64<br>
vzstats-0.5.2-1.noarch<br>
vzkernel-2.6.32-042stab084.20.x86_64<br>
vzkernel-2.6.32-042stab084.17.x86_64<br>
vzctl-core-4.6.1-1.x86_64<br>
vzquota-3.1-1.x86_64<br>
vzctl-4.6.1-1.x86_64<br>
<br>
This is how interfaces are setup.<br>
<a href="http://openvz.org/Quick_Installation_CentOS_6" target="_blank">http://openvz.org/Quick_Installation_CentOS_6</a><br>
<br>
[root@ex1 ~]# cat /etc/sysctl.conf |grep -v "#"<br>
net.ipv4.ip_forward = 1<br>
net.ipv6.conf.default.forwarding = 1<br>
net.ipv6.conf.all.forwarding = 1<br>
net.ipv6.conf.all.proxy_ndp = 1<br>
net.ipv4.conf.default.proxy_arp = 0<br>
net.ipv4.conf.all.rp_filter = 1<br>
net.ipv4.conf.default.send_redirects = 1<br>
net.ipv4.conf.all.send_redirects = 0<br>
net.ipv4.conf.default.rp_filter = 1<br>
net.ipv4.conf.default.accept_source_route = 0<br>
kernel.sysrq = 1<br>
kernel.core_uses_pid = 1<br>
net.ipv4.tcp_syncookies = 1<br>
net.bridge.bridge-nf-call-ip6tables = 1<br>
net.bridge.bridge-nf-call-iptables = 1<br>
net.bridge.bridge-nf-call-arptables = 0<br>
kernel.msgmnb = 65536<br>
kernel.msgmax = 65536<br>
kernel.shmmax = 68719476736<br>
kernel.shmall = 4294967296<br>
<br>
[root@ex1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0<br>
DEVICE="eth0"<br>
ONBOOT="yes"<br>
IPV6INIT="yes"<br>
TYPE="Ethernet"<br>
BRIDGE="vmbr0"<br>
<br>
[root@ex1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-vmbr0<br>
DEVICE="vmbr0"<br>
BOOTPROTO="static"<br>
IPV6INIT="yes"<br>
ONBOOT="yes"<br>
TYPE="Bridge"<br>
DELAY=0<br>
IPADDR=x.x.x.38<br>
NETMASK=255.255.255.0<br>
GATEWAY=x.x.x.1<br>
DNS1=x.x.x.4<br>
#DEFROUTE=yes<br>
IPV6_AUTOCONF=no<br>
IPV6_DEFAULTGW=xxxx:xxxx::1<br>
IPV6ADDR=xxxx:xxxx::38/64<br>
DNS2=xxxx:xxxx::4<br>
#IPV6_DEFROUTE=yes<br>
<br>
<br>
Everything updated to latest with yum. Clean install with only OpenVZ added.<br>
<div class="HOEnZb"><div class="h5">_______________________________________________<br>
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