<div dir="ltr">Britt, <div><br></div><div>It seems working. Thanks britt.<br></div><div><br></div><div>I need some more help in this.</div><div><br></div><div>Still I couldn't ping or ssh to openstack instances from controller node.</div><div><br></div><div>I read we need to create an external network and add it to router as gateway.</div><div><br></div><div>Like => <a href="http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron_initial-external-network.html">http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron_initial-external-network.html</a></div><div><br></div><div>I am using this command to create subnet for external network</div><div><br></div><div>neutron subnet-create ext-net --name ext-subnet \<br> --allocation-pool start=203.0.113.101,end=203.0.113.200 \<br> --disable-dhcp --gateway 203.0.113.1 <a href="http://203.0.113.0/24">203.0.113.0/24</a></div><div><br></div><div><br></div><div>But my current network is bit complex</div><div><br></div><div>1) My machine local machine Ip => 172.17.4.64 (Its in our internal network of our company with gateway 172.17.4.254)</div><div><br></div><div>2) I installed kvm on my local machine and controller node with IP => 192.168.122.54 with gateway 192.168.122.1</div><div> </div><div>3) Openstack instance network is in 192.168.1.101 to 192.168.1.125 with gateway 192.168.1.1 </div><div><br></div><div>Can you please tell me which IP addresses I have to give while creating above subnet for my external network.</div><div> </div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Nov 24, 2014 at 10:05 PM, Britt Houser (bhouser) <span dir="ltr"><<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-family:Calibri,sans-serif">
<div>If you created the br-ex bridge after restarting networking, that might be the source of your error. Might try restarting networking or rebooting the VM. You can tell its working if you see br-ex with and IP address in the output of ifconfig, and if
you can ping that address.</div>
<div><br>
</div>
<div>Thx,</div>
<div>britt</div>
<div><br>
</div>
<span>
<div style="font-family:Calibri;font-size:11pt;text-align:left;color:black;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADDING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:medium none;PADDING-TOP:3pt">
<span style="font-weight:bold">From: </span>Geo Varghese <<a href="mailto:gvarghese@aqorn.com" target="_blank">gvarghese@aqorn.com</a>><br>
<span style="font-weight:bold">Date: </span>Monday, November 24, 2014 at 8:32 AM<div><div class="h5"><br>
<span style="font-weight:bold">To: </span>Britt Houser <<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>>, "<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>"
<<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [Openstack-operators] While adding external bridge connection lost to the network node<br>
</div></div></div><div><div class="h5">
<div><br>
</div>
<div>
<div>
<div dir="ltr">
<div>
<div>Britt,<br>
<br>
</div>
Its okay. Thanks a lot your time.<br>
<br>
</div>
I just added br-ex successfully. How can we verify its working. Please check below ovs-vsctl show<br>
<br>
=============<br>
root@controller:/home/geo# ovs-vsctl show<br>
b97bd565-6196-40f2-8f3e-c8f21c04c98f<br>
Bridge br-ex<br>
Port "eth0"<br>
Interface "eth0"<br>
Port br-ex<br>
Interface br-ex<br>
type: internal<br>
Bridge br-tun<br>
Port br-tun<br>
Interface br-tun<br>
type: internal<br>
Port "gre-c0a87bb3"<br>
Interface "gre-c0a87bb3"<br>
type: gre<br>
options: {in_key=flow, local_ip="192.168.123.54", out_key=flow, remote_ip="192.168.123.179"}<br>
Port "gre-c0a87a36"<br>
Interface "gre-c0a87a36"<br>
type: gre<br>
options: {in_key=flow, local_ip="192.168.123.54", out_key=flow, remote_ip="192.168.122.54"}<br>
Port "gre-7f000001"<br>
Interface "gre-7f000001"<br>
type: gre<br>
options: {in_key=flow, local_ip="192.168.123.54", out_key=flow, remote_ip="127.0.0.1"}<br>
Port patch-int<br>
Interface patch-int<br>
type: patch<br>
options: {peer=patch-tun}<br>
Bridge br-int<br>
fail_mode: secure<br>
Port "qvof64e7b35-cb"<br>
tag: 1<br>
Interface "qvof64e7b35-cb"<br>
Port "tapbb0d455b-79"<br>
tag: 1<br>
Interface "tapbb0d455b-79"<br>
type: internal<br>
Port patch-tun<br>
Interface patch-tun<br>
type: patch<br>
options: {peer=patch-int}<br>
Port "qvo887bf763-8d"<br>
tag: 1<br>
Interface "qvo887bf763-8d"<br>
Port br-int<br>
Interface br-int<br>
type: internal<br>
Port "int-br-eth1"<br>
Interface "int-br-eth1"<br>
Port "tapa72fb9d6-4a"<br>
tag: 2<br>
Interface "tapa72fb9d6-4a"<br>
type: internal<br>
ovs_version: "2.0.2<br>
<br>
=============<br>
<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Nov 24, 2014 at 6:22 PM, Britt Houser (bhouser) <span dir="ltr">
<<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-family:Calibri,sans-serif">
<div>Geo,</div>
<div><br>
</div>
<div>Sorry for not getting back sooner. Was out sick. Can you post the output of 'ovs-vsctl show'? I didn’t see a br-ex interface in your ifconfig output.</div>
<div><br>
</div>
<div>Thx,</div>
<div>britt</div>
<div><br>
</div>
<div><br>
</div>
<span>
<div style="font-family:Calibri;font-size:11pt;text-align:left;color:black;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADDING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:medium none;PADDING-TOP:3pt">
<span style="font-weight:bold">From: </span>Geo Varghese <<a href="mailto:gvarghese@aqorn.com" target="_blank">gvarghese@aqorn.com</a>><br>
<span style="font-weight:bold">Date: </span>Friday, November 21, 2014 at 1:39 PM
<div>
<div><br>
<span style="font-weight:bold">To: </span>Britt Houser <<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>>, "<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>"
<<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [Openstack-operators] While adding external bridge connection lost to the network node<br>
</div>
</div>
</div>
<div>
<div>
<div><br>
</div>
<div>
<div>
<div dir="ltr">Britt,
<div><br>
</div>
<div>Just tried it but network restart failed if I add these lines. Also IP not assigned to bridge when controller restarted.</div>
<div><br>
</div>
<div>When try to do following command after this change</div>
<div><br>
</div>
<div>ifdown eth0</div>
<div><br>
</div>
<div>Show error in following line in /etc/network/interfaces</div>
<div><br>
</div>
<div>iface br-ex inet static<br>
</div>
<div><br>
</div>
<div>Thanks again for your support.<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Nov 21, 2014 at 6:05 PM, Britt Houser (bhouser) <span dir="ltr">
<<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The br-ex config looks right, but you don't want eth0 to DHCP for an<br>
address anymore. Once its attached to br-ex, its an L2-only interface<br>
(similar to switchport on cisco switch). I think you want something like<br>
this for eth0:<br>
<br>
auto eth0<br>
iface eth0 inet manual<br>
pre-up ifconfig $IFACE up<br>
post-down ifconfig $IFACE down<br>
<span><br>
<br>
Thx,<br>
britt<br>
<br>
From: Geo Varghese <<a href="mailto:gvarghese@aqorn.com" target="_blank">gvarghese@aqorn.com</a>><br>
</span>Date: Friday, November 21, 2014 at 7:22 AM<br>
<span>To: Britt Houser <<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>><br>
Cc: "<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>>,<br>
"<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>"<br>
<<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><br>
Subject: Re: [Openstack-operators] While adding external bridge<br>
connection lost to the network node<br>
<br>
<br>
</span><span>Thanks Britt.<br>
<br>
<br>
You mean like this right?<br>
<br>
cat /etc/network/interfaces<br>
=========================<br>
# The loopback network interface<br>
auto lo<br>
iface lo inet loopback<br>
<br>
# The primary network interface<br>
auto eth0<br>
iface eth0 inet dhcp<br>
<br>
# The external network interface<br>
auto br-ex<br>
iface br-ex inet static<br>
address 192.168.122.54<br>
netmask 255.255.255.0<br>
gateway 192.168.122.1<br>
dns-nameservers 8.8.8.8 8.8.4.4<br>
==========================================================<br>
<br>
<br>
<br>
On Fri, Nov 21, 2014 at 5:48 PM, Britt Houser (bhouser)<br>
<<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>> wrote:<br>
<br>
Correct. You need to updated your /etc/interfaces file so that the<br>
</span><a href="http://192.168.122.54/24" target="_blank">192.168.122.54/24</a> <<a href="http://192.168.122.54/24" target="_blank">http://192.168.122.54/24</a>> address gets assigned to<br>
<div>
<div>br-ex instead of eth0.<br>
<br>
From: Geo Varghese <<a href="mailto:gvarghese@aqorn.com" target="_blank">gvarghese@aqorn.com</a>><br>
Date: Friday, November 21, 2014 at 7:16 AM<br>
To: Britt Houser <<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>><br>
Cc: "<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>>,<br>
"<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>"<br>
<<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><br>
Subject: Re: [Openstack-operators] While adding external bridge connection<br>
lost to the network node<br>
<br>
<br>
Hi Britt,<br>
<br>
Thanks for the answer.<br>
<br>
I am using Virtual machine(KVM) for openstack installation. Its a single<br>
node installation.<br>
<br>
<br>
Now i can create instance from openstack dahboard and and can login in to<br>
the instance from dashboard konsole.<br>
<br>
But i couln't connect to instance from controller node.<br>
<br>
Also i couldn't have connection between instances.<br>
<br>
Ifconfig output from openstack installation node<br>
=======================<br>
root@ubuntu:/home/geo# ifconfig<br>
br-int Link encap:Ethernet HWaddr 26:73:95:7a:c5:4e<br>
inet6 addr: fe80::ec9d:9aff:fe2f:66ab/64 Scope:Link<br>
UP BROADCAST RUNNING MTU:1500 Metric:1<br>
RX packets:0 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0<br>
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)<br>
<br>
br-tun Link encap:Ethernet HWaddr 0e:af:b2:8e:89:44<br>
inet6 addr: fe80::c89f:cfff:fe74:712/64 Scope:Link<br>
UP BROADCAST RUNNING MTU:1500 Metric:1<br>
RX packets:0 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0<br>
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)<br>
<br>
eth0 Link encap:Ethernet HWaddr 52:54:00:d6:4c:4f<br>
inet addr:192.168.122.54 Bcast:192.168.122.255<br>
Mask:255.255.255.0<br>
inet6 addr: fe80::5054:ff:fed6:4c4f/64 Scope:Link<br>
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<br>
RX packets:162 errors:0 dropped:3 overruns:0 frame:0<br>
TX packets:100 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:1000<br>
RX bytes:16187 (16.1 KB) TX bytes:13445 (13.4 KB)<br>
<br>
lo Link encap:Local Loopback<br>
inet addr:127.0.0.1 Mask:255.0.0.0<br>
inet6 addr: ::1/128 Scope:Host<br>
UP LOOPBACK RUNNING MTU:65536 Metric:1<br>
RX packets:737 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:737 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0<br>
RX bytes:104803 (104.8 KB) TX bytes:104803 (104.8 KB)<br>
<br>
tap561bdedf-3e Link encap:Ethernet HWaddr 42:c5:72:1c:3b:99<br>
inet6 addr: fe80::40c5:72ff:fe1c:3b99/64 Scope:Link<br>
UP BROADCAST RUNNING MTU:1500 Metric:1<br>
RX packets:0 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0<br>
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)<br>
<br>
tapde436ec7-3b Link encap:Ethernet HWaddr b6:09:88:dc:f7:5a<br>
inet6 addr: fe80::b409:88ff:fedc:f75a/64 Scope:Link<br>
UP BROADCAST RUNNING MTU:1500 Metric:1<br>
RX packets:0 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0<br>
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)<br>
======================================<br>
<br>
<br>
Same eth0 i have used to add br-ex, you mean thats the issue right?<br>
<br>
<br>
On Fri, Nov 21, 2014 at 5:31 PM, Britt Houser (bhouser)<br>
<<a href="mailto:bhouser@cisco.com" target="_blank">bhouser@cisco.com</a>> wrote:<br>
<br>
Was the interface you added to br-ex the same interface to which you<br>
connected to the box? If so, this is expected. When you add an interface<br>
to the bridge you lose IP connectivity to that interface. The IP address<br>
which which was assigned to the interface<br>
now needs to be assigned to the br-ex bridge, and then you'll have<br>
connectivity once again.<br>
<br>
Thx,<br>
britt<br>
<br>
From: Geo Varghese <<a href="mailto:gvarghese@aqorn.com" target="_blank">gvarghese@aqorn.com</a>><br>
Date: Friday, November 21, 2014 at 1:39 AM<br>
To: "<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org" target="_blank">openstack@lists.openstack.org</a>>,<br>
"<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>"<br>
<<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.openstack.org</a>><br>
Subject: [Openstack-operators] While adding external bridge connection<br>
lost to the network node<br>
<br>
<br>
Hi Team,<br>
<br>
While adding external bridge connection lost to the network node from<br>
other nodes. we couldn't ssh to network node after creating bridge.<br>
<br>
If we do below steps of following link<br>
<br>
<a href="http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron-ml2-network-node.html" target="_blank">http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutro<br>
n-ml2-network-node.html</a><br>
<br>
===========================================<br>
3) Add the external bridge:<br>
<br>
# ovs-vsctl add-br br-ex<br>
<br>
4) Add a port to the external bridge that connects to the physical<br>
external network interface:<br>
<br>
Replace INTERFACE_NAME with the actual interface name. For example, eth2<br>
or ens256.<br>
<br>
# ovs-vsctl add-port br-ex INTERFACE_NAME<br>
=============================================<br>
<br>
External connection to network node fails. Then we couldn't connect to<br>
network node from other machines.<br>
<br>
Any one faced this issue?<br>
<br>
Please help us to fix this issue.<br>
<br>
<br>
<br>
<br>
</div>
</div>
<div>
<div>--<br>
Regards,<br>
Geo Varghese<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
--<br>
--<br>
Regards,<br>
Geo Varghese<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
--<br>
--<br>
Regards,<br>
Geo Varghese<br>
<br>
</div>
</div>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
<div>
<div dir="ltr">--
<div>Regards,</div>
<div>Geo Varghese</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</span></div>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
<div>
<div dir="ltr">--
<div>Regards,</div>
<div>Geo Varghese</div>
</div>
</div>
</div>
</div>
</div>
</div></div></span>
</div>
</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr">--<div>Regards,</div><div>Geo Varghese</div></div></div>
</div>