<div class="gmail_extra">Hi Meena, </div><div class="gmail_extra"><br></div><div class="gmail_extra">Thanks for your reply, this solve my third question. :D</div><div class="gmail_extra">Wait for someone who could help with the First 2 questions.</div>
<div class="gmail_extra">how to change the IP address after instance has launched and get an address from dnsmasq ?</div><div class="gmail_extra">and how to bind a loopback IP address (lo:0) or an alias IP address (eth0:0) ? </div>
<div class="gmail_extra"><br></div><div class="gmail_extra">I just started to test Quantum + Melange, don't know if it helps with my questions. </div><div class="gmail_extra"><br></div><div class="gmail_extra">Thanks,</div>
<div class="gmail_extra">-Jimmy </div><div class="gmail_extra"><br><div class="gmail_quote">2012/4/26 <span dir="ltr"><<a href="mailto:raja.meena@wipro.com" target="_blank">raja.meena@wipro.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi ,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This link should help you on the multinic feature .<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><a href="http://docs.openstack.org/trunk/openstack-compute/admin/content/using-multi-nics.html#using-multiple-nics-usage" target="_blank">http://docs.openstack.org/trunk/openstack-compute/admin/content/using-multi-nics.html#using-multiple-nics-usage</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Meena Raja<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> openstack-bounces+raja.meena=<a href="mailto:wipro.com@lists.launchpad.net" target="_blank">wipro.com@lists.launchpad.net</a> [mailto:<a href="mailto:openstack-bounces%2Braja.meena" target="_blank">openstack-bounces+raja.meena</a>=<a href="mailto:wipro.com@lists.launchpad.net" target="_blank">wipro.com@lists.launchpad.net</a>]
<b>On Behalf Of </b>Jimmy Tsai<br>
<b>Sent:</b> Thursday, April 26, 2012 2:52 PM<br>
<b>To:</b> <a href="mailto:openstack@lists.launchpad.net" target="_blank">openstack@lists.launchpad.net</a>; Jimmy<br>
<b>Subject:</b> [Openstack] questions about IP addressing and network config<u></u><u></u></span></p>
</div><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hi everyone,<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">I'm running with Essex 2012.1, <u></u><u></u></p>
<p class="MsoNormal">and have some questions about the nova network operation,
<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">1. Is it possible manually assigned IP address to a launched instance, my situation is :<u></u><u></u></p>
<p class="MsoNormal">after instance boot up (OS: CentOS 6.2), I changed the /etc/sysconfig/network-scripts/ifcfg-eth0 setting <u></u><u></u></p>
<p class="MsoNormal">from dhcp to static (the same subnet as created by command : nova-manage create network....), and restart the network service, <u></u><u></u></p>
<p class="MsoNormal">And then I couldn't ssh or ping the instance from other server with the same subnet.<u></u><u></u></p>
<p class="MsoNormal">What is the problem ? I checked the iptables policies on the compute host, and find nothing about the DROP packets.<br>
I also tried to change the DB record from nova.fixed_ips table and libvirt.xml of the instance directory, then reboot the instance, I can see the instance get new IP from DHCP, but still not worked(can't ping & ssh).<u></u><u></u></p>
<p class="MsoNormal">I used FlatDHCP as my network manager.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">2. According to the first question, I have another requirement to set up a loopback IP address (lo:0) on the running instance, after setting completed,I couldn't ping or ssh the
loopback IP from the same subnet, and I tried to set a alias IP address with eth0:0, but still not get worked.<u></u><u></u></p>
<p class="MsoNormal">Any ideas with this ?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">3. Is there any way to use 2 NICs with different subnets on instances? I want to separate the network traffic. <u></u><u></u></p>
<p class="MsoNormal">Now I'm running with one bridged interface (br100), and it works well. In order to backup the large log files,<u></u><u></u></p>
<p class="MsoNormal">I'm planing to use 2 NICs for the compute hosts, I want use 2 vNICs on instance, one for web service and the other for log backup,<u></u><u></u></p>
<p class="MsoNormal">I think I should create a new network for the second bridged interface, but I can't find any document to guild me.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">List my nova.conf below <u></u><u></u></p>
<p class="MsoNormal">==========================================<u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--dhcpbridge_flagfile=/etc/nova/nova.conf</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--dhcpbridge=/usr/bin/nova-dhcpbridge</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--logdir=/var/log/nova</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--state_path=/var/lib/nova</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--lock_path=/var/lock/nova</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--allow_admin_api=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--use_deprecated_auth=false</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--auth_strategy=keystone</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--scheduler_driver=nova.scheduler.simple.SimpleScheduler</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--s3_host=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--ec2_host=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--rabbit_host=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--cc_host=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--nova_url=<a href="http://172.19.7.1:8774/v1.1/" target="_blank"><span style="color:#1155cc">http://172.19.7.1:8774/v1.1/</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> #--routing_source_ip=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--glance_api_servers=<a href="http://172.19.7.1:9292/" target="_blank"><span style="color:#1155cc">172.19.7.1:9292</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> --image_service=nova.image.glance.GlanceImageService</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">#--iscsi_ip_prefix=192.168.22</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--sql_connection=mysql://<a href="http://nova:nova@172.19.7.1/nova" target="_blank"><span style="color:#1155cc">nova:nova@172.19.7.1/nova</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> --ec2_url=<a href="http://172.19.7.1:8773/services/Cloud" target="_blank"><span style="color:#1155cc">http://172.19.7.1:8773/services/Cloud</span></a> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--keystone_ec2_url=<a href="http://172.19.7.1:5000/v2.0/ec2tokens" target="_blank"><span style="color:#1155cc">http://172.19.7.1:5000/v2.0/ec2tokens</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> --api_paste_config=/etc/nova/api-paste.ini</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--libvirt_type=kvm</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--libvirt_use_virtio_for_bridges=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--start_guests_on_host_boot=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--resume_guests_state_on_host_boot=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">#--vnc_enabled=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--novnc_enabled=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">#--vncproxy_url=<a href="http://172.19.7.1:6080/vnc_auto.html" target="_blank"><span style="color:#1155cc">http://172.19.7.1:6080/vnc_auto.html</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> </span><u></u><u></u></p>
<p class="MsoNormal"> <span style="color:blue">#--vnc_console_proxy_url=<a href="http://172.19.7.1:6080/" target="_blank"><span style="color:#1155cc">http://172.19.7.1:6080</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> --novncproxy_base_url=<a href="http://172.19.7.1:6080/vnc_auto.html" target="_blank"><span style="color:#1155cc">http://172.19.7.1:6080/vnc_auto.html</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> --xvpvncproxy_base_url=<a href="http://172.19.7.1:6081/console" target="_blank"><span style="color:#1155cc">http://172.19.7.1:6081/console</span></a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> #--vncserver_listen=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">#--vncserver_proxyclient_address=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--vncserver_listen=0.0.0.0</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue">--vncserver_proxyclient_address=0.0.0.0</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:blue"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff"># network specific settings </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--network_manager=nova.network.manager.FlatDHCPManager</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">#--network_manager=nova.network.quantum.manager.QuantumManager</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">#--quantum_connection_host=172.19.7.1</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">#--quantum_connection_port=9696</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--public_interface=eth0</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--flat_interface=eth0</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--flat_network_bridge=br100</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--fixed_range=<a href="http://172.19.7.0/24" target="_blank">172.19.7.0/24</a></span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff"> --network_size=254</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--flat_network_dhcp_start=172.19.7.41</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--multi_host</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--flat_injected=False</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--force_dhcp_release</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--iscsi_helper=tgtadm</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--connection_type=libvirt</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--root_helper=sudo nova-rootwrap</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">#--verbose</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">#--verbose=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--verbose=false</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--libvirt_xml_template=/usr/share/pyshared/nova/virt/libvirt.xml.template</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--allow_resize_to_same_host=true</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#3333ff">--max_cores=30</span><u></u><u></u></p>
<p class="MsoNormal">=================================================<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<h3 style="margin:0in;margin-bottom:.0001pt;text-overflow:ellipsis"><span style="font-family:"Arial","sans-serif";font-weight:normal">if I misunderstand something, please correct me, thanks.</span><u></u><u></u></h3>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">-Jimmy<u></u><u></u></p>
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