<div dir="ltr"><div>Aaron,<br><br></div> The idea is to steer packets coming from source S1 ( belong to net1) destined to destination D1 (belong to net1) through bunch of L2 appliances (like firewall) without modifying packet headers. The core idea is to keep appliances (on net1), source S1 (VM on net1) and destination D1(VM on net1) on same broadcast domain. I hope it wl now make sense.<br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Apr 17, 2014 at 10:47 AM, Vikash Kumar <span dir="ltr"><<a href="mailto:vikash.kumar@oneconvergence.com" target="_blank">vikash.kumar@oneconvergence.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Kevin , this can be one approach but not sure. But certainly won't solve all cases. :)<br><br> <br>
</div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Apr 17, 2014 at 10:33 AM, Kevin Benton <span dir="ltr"><<a href="mailto:blak111@gmail.com" target="_blank">blak111@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 dir="ltr">Yeah, I was aware of allowed address pairs, but that doesn't help with the IP allocation part. <div>
<br></div><div>Is this the tenant workflow for this use case?</div><div><br><div>1. Create an instance.</div>
<div>2. Wait to see what which subnet it gets an allocation from.</div><div>3. Pick an IP from that subnet that doesn't currently appear to be in use.</div><div>4. Use the neutron-cli or API to update the port object with the extra IP.</div>
<div>5. Hope that Neutron will never allocate that IP address for something else.</div></div></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 16, 2014 at 9:46 PM, Aaron Rosen <span dir="ltr"><<a href="mailto:aaronorosen@gmail.com" target="_blank">aaronorosen@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 dir="ltr">Whoops Akihiro beat me to it :) </div><div><div><div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, Apr 16, 2014 at 9:46 PM, Aaron Rosen <span dir="ltr"><<a href="mailto:aaronorosen@gmail.com" target="_blank">aaronorosen@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 dir="ltr">The allowed-address-pair extension that was added here (<a href="https://review.openstack.org/#/c/38230/" target="_blank">https://review.openstack.org/#/c/38230/</a>) allows us to add arbitrary ips to an interface to allow them. This is useful if you want to run something like VRRP between two instances.
</div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 16, 2014 at 9:39 PM, Kevin Benton <span dir="ltr"><<a href="mailto:blak111@gmail.com" target="_blank">blak111@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 dir="ltr">I was under the impression that the security group rules blocked addresses not assigned by neutron[1].<div>
<br></div><div>1.<a href="https://github.com/openstack/neutron/blob/master/neutron/agent/linux/iptables_firewall.py#L188" target="_blank">https://github.com/openstack/neutron/blob/master/neutron/agent/linux/iptables_firewall.py#L188</a></div>
<div><div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 16, 2014 at 9:20 PM, Aaron Rosen <span dir="ltr"><<a href="mailto:aaronorosen@gmail.com" target="_blank">aaronorosen@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 dir="ltr">You can do it with ip aliasing and use one interface: <div><br></div><div>ifconfig eth0 <a href="http://10.0.0.22/24" target="_blank">10.0.0.22/24</a></div>
<div><div>ifconfig eth0:1 <a href="http://10.0.0.23/24" target="_blank">10.0.0.23/24</a></div>
</div><div><div>ifconfig eth0:2 <a href="http://10.0.0.24/24" target="_blank">10.0.0.24/24</a></div></div><div><br></div><div><div>2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000</div>
<div> link/ether 40:6c:8f:1a:a9:31 brd ff:ff:ff:ff:ff:ff</div>
<div> inet <a href="http://10.0.0.22/24" target="_blank">10.0.0.22/24</a> brd 10.0.0.255 scope global eth0</div><div> valid_lft forever preferred_lft forever</div><div> inet <a href="http://10.0.0.23/24" target="_blank">10.0.0.23/24</a> brd 10.0.0.255 scope global secondary eth0:1</div>
<div> valid_lft forever preferred_lft forever</div><div> inet <a href="http://10.0.0.24/24" target="_blank">10.0.0.24/24</a> brd 10.0.0.255 scope global secondary eth0:2</div><div> valid_lft forever preferred_lft forever</div>
</div><div><br></div></div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 16, 2014 at 8:53 PM, Kevin Benton <span dir="ltr"><<a href="mailto:blak111@gmail.com" target="_blank">blak111@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 dir="ltr">Web server running multiple SSL sites that wants to be compatible with clients that don't support the SNI extension. There is no way for a server to get multiple IP addresses on the same interface is there?</div>
<div class="gmail_extra"><div><div><br><br><div class="gmail_quote">On Wed, Apr 16, 2014 at 5:50 PM, Aaron Rosen <span dir="ltr"><<a href="mailto:aaronorosen@gmail.com" target="_blank">aaronorosen@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 dir="ltr">This is true. Several people have asked this same question over the years though I've yet to hear a use case why one really need to do this. Do you have one? </div>
<div><div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Wed, Apr 16, 2014 at 3:12 PM, Ronak Shah <span dir="ltr"><<a href="mailto:ronak@nuagenetworks.net" target="_blank">ronak@nuagenetworks.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>Hi Vikash,</div>Currently this is not supported. the NIC not only needs to be in different subnet, they have to be in different network as well (container for the subnet)<br><div class="gmail_extra"><br>
</div><div class="gmail_extra">Thanks</div><div class="gmail_extra">Ronak<br><br><div class="gmail_quote"><div><div>On Wed, Apr 16, 2014 at 3:51 AM, Vikash Kumar <span dir="ltr"><<a href="mailto:vikash.kumar@oneconvergence.com" target="_blank">vikash.kumar@oneconvergence.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><span style="color:rgb(61,133,198)"><b>With 'interfaces' I mean 'nics' of VM</b>.</span><br>
</div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 16, 2014 at 4:18 PM, Vikash Kumar <span dir="ltr"><<a href="mailto:vikash.kumar@oneconvergence.com" target="_blank">vikash.kumar@oneconvergence.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Hi, <br><br></div> I want to launch one VM which will have two Ethernet interfaces with IP of single subnet. Is this supported now in openstack ? Any suggestion ?<br>
<br><br></div>Thanx<br></div>
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