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floating ip is implemented through NAT ,  the l3 agent is responsible for
NAT.
so , you cannot see the floating ip inside the instance .
Please refer to NAT technology.


2013/12/10 Gonzalo Aguilar Delgado <gaguilar at aguilardelgado.com>

>  Hi,
>
> But when I do this. It just don't work. Let me explain.
>
> That's what it says the documentation. I understood that the instance is
> created with a private ip, so I start it with just one network in it. The
> private one.
>
> And once it's started and working, I just assign it a public ( floating )
> ip. Horizon let me select the private ip interface.
>
> When I reboot the instance it has two ip added but only one (the private
> one) is used in the instance. So where is the floating ip?
>
> I supposed that it should create a second interface in my external bridge.
> But it's not. So how he hell this floating ip is used?
>
>
> Sencond way I supposed it to work is create an instance with two nics. One
> on the private network, one on the public network. Then a floating ip will
> be assigned to public nic. But this is what it fails. And why I wrote the
> e-mail.
>
> So if you can do both. What's the right way to do it. I suppose that both,
> but what I'm doing wrong?
>
> Best regards,
>
>
>
> El 10/12/13 08:19, 郭龙仓 escribió:
>
> well , you cannot assign an external ip to an instance directly without an
> private ip.   you must first assign an private ip to the instance ,then if
> you wanna an external ip , you can assign an floating ip to  it .
>
>
> 2013/12/10 Gonzalo Aguilar Delgado <gaguilar at aguilardelgado.com>
>
>> Hi,
>>
>> I cannot instanciate any machine with external ip because it tells
>> something failed but don't know reason.
>>
>>
>> I found this error in libvirtd
>>
>> 2013-12-09 18:33:52.032+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm vm="instance-0000002f"
>> uuid=52af41df-5e9e-4470-86ff-ea274e18e08c
>> vm-ctx=libvirt-52af41df-5e9e-4470-86ff-ea274e18e08c
>> img-ctx=libvirt-52af41df-5e9e-4470-86ff-ea274e18e08c model=apparmor:
>> Operation not permitted
>> 2013-12-09 18:33:52.032+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm vm="instance-0000002f"
>> uuid=52af41df-5e9e-4470-86ff-ea274e18e08c vm-ctx=128:123 img-ctx=128:123
>> model=dac: Operation not permitted
>> 2013-12-09 18:33:52.168+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=net reason=open vm="instance-0000002f"
>> uuid=52af41df-5e9e-4470-86ff-ea274e18e08c net=fa:16:3e:27:7e:e0
>> path="/dev/net/tun" rdev=0A:C8: Operation not permitted
>> 2013-12-09 18:33:52.700+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=net reason=open vm="instance-0000002f"
>> uuid=52af41df-5e9e-4470-86ff-ea274e18e08c net=fa:16:3e:27:7e:e0
>> path="/dev/vhost-net" rdev=0A:EE: Operation not permitted
>> 2013-12-09 18:33:52.852+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=net reason=open vm="instance-0000002f"
>> uuid=52af41df-5e9e-4470-86ff-ea274e18e08c net=fa:16:3e:cc:2e:85
>> path="/dev/net/tun" rdev=0A:C8: Operation not permitted
>> 2013-12-09 18:33:52.900+0000: 3650: error : virNWFilterInstantiate:790 :
>> internal error: Cannot instantiate filter due to unresolvable variables or
>> unavailable list elements: DHCPSERVER
>> 2013-12-09 18:33:53.597+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=disk reason=start
>> vm="instance-0000002f" uuid=52af41df-5e9e-4470-86ff-ea274e18e08c
>> old-disk="?"
>> new-disk="/var/lib/nova/instances/52af41df-5e9e-4470-86ff-ea274e18e08c/disk":
>> Operation not permitted
>> 2013-12-09 18:33:53.598+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=net reason=start
>> vm="instance-0000002f" uuid=52af41df-5e9e-4470-86ff-ea274e18e08c old-net=?
>> new-net=fa:16:3e:27:7e:e0: Operation not permitted
>> 2013-12-09 18:33:53.598+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=net reason=start
>> vm="instance-0000002f" uuid=52af41df-5e9e-4470-86ff-ea274e18e08c old-net=?
>> new-net=fa:16:3e:cc:2e:85: Operation not permitted
>> 2013-12-09 18:33:53.598+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=mem reason=start
>> vm="instance-0000002f" uuid=52af41df-5e9e-4470-86ff-ea274e18e08c old-mem=0
>> new-mem=1572864: Operation not permitted
>> 2013-12-09 18:33:53.598+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm resrc=vcpu reason=start
>> vm="instance-0000002f" uuid=52af41df-5e9e-4470-86ff-ea274e18e08c old-vcpu=0
>> new-vcpu=1: Operation not permitted
>> 2013-12-09 18:33:53.598+0000: 3650: warning : virAuditSend:135 : Failed
>> to send audit message virt=kvm op=start reason=booted
>> vm="instance-0000002f" uuid=52af41df-5e9e-4470-86ff-ea274e18e08c vm-pid=-1:
>> Operation not permitted
>>
>>
>> I think cause can be:
>>
>> 2013-12-09 18:33:52.900+0000: 3650: error : virNWFilterInstantiate:790 :
>> internal error: Cannot instantiate filter due to unresolvable variables or
>> unavailable list elements: DHCPSERVER
>>
>> What's this variable?
>>
>>
>> Thank you in advance.
>>
>>
>>
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>
>
>
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