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Re: multiple public ip
"The doc cited explains how this works with Quantum, but not with
-As of Folsom, you have the option of using Quantum for networking or Nova
Network and I believe Nova network will eventually be deprecated.
"VM1 is shown as being accessible via two VNICs, that implies that their is
a Hypervisor that is available by two NICs"
-There can be any number of vNICs while using just one physical NIC. Each
port created in quantum is a vNIC. However the illustration showed 3
physical NICs all of which could have been on a single hypervisor or each
on it sown hypervisor.
Looks like we are deviating from the original question which was posed by
On Thu, Jan 31, 2013 at 11:18 PM, Caitlin Bestler <
> The doc cited explains how this works with Quantum, but not with Openstack.
> VM1 is shown as being accessible via two VNICs, that implies that their is
> a Hypervisor that is available by two NICs. How does Nova know that this is
> in fact one Hypervisor and not two?
> Similar question must be addressed for Cinder and Swift. I am most
> familiar with Swift, and it really does not address this situation.
> Balamurugan V G <balamuruganvg@xxxxxxxxx> wrote:
> Perhaps you can use the multiple flat network model shown here:
> The TenantC VM1 gets two IPs, one from each net. But in this case each net
> is in a different subnet.
> May be you can create the nets for the same subet but with diff ranges or
> even just one IP(/32) and disable DHCP.
> Basically the idea is to use multiple vNICs.
> Just throwing at you, I am not entirely sure if it will work, I havent
> tried it.
> On Thu, Jan 31, 2013 at 1:51 PM, Umar Draz <unix.co@xxxxxxxxx> wrote:
>> Hi Vish,
>> Assign direct/static IP address to Instance something like bridge rather
>> than nating is possible? Same like vSphare
>> Best Regards,
>> On Thu, Jan 31, 2013 at 8:37 AM, Vishvananda Ishaya <
>> vishvananda@xxxxxxxxx> wrote:
>>> On Jan 30, 2013, at 11:35 AM, Umar Draz <unix.co@xxxxxxxxx> wrote:
>>> > Hi Caitlin,
>>> > I need multiple ip address for my Haproxy server.
>>> > Here is my senario
>>> > I have already running Haproxy Server virtual machine for web load
>>> balancing on vSphare with 45 public ip address. We are running 45 diffrent
>>> websites and we required diffrent ips for each webiste.
>>> > We have 6 webservers with only local ip address. These 6 webservers
>>> holding all 45 websites. Haproxy just forward the request to local
>>> webservers accorindg to DNS.
>>> You can associate multiple floating ips to a single instance. Floating
>>> ips just create natting entries. Keep in mind that traffic that originates
>>> from the server will only come from one of these ips. Also there is no way
>>> for the server to determine which ip address the traffic came in on so you
>>> will need to do the forwarding at the HTTP layer which has access to the
>>> domain name used for the request.
>> Umar Draz
>> Network Architect
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