[Openstack] quantum: two ips one vif
Aaron Rosen
arosen at nicira.com
Tue Oct 23 21:46:26 UTC 2012
Do you have two default gateways in your instance when you type route -n ?
Aaron
On Tue, Oct 23, 2012 at 2:12 PM, Jason Ford <jason at chatinara.com> wrote:
> This seems broke unless I have something weird going on in my ovs setup. I
> can get quantum to assign the second IP address to the instance but when
> trying to do anything to that second IP, traffic is blocked by something. I
> have verified that iptables is updated on the hypervisor and I can see
> flows in OVS inbound but no replies. I can even see the traffic making it
> to the instance as well via tcpdump and also see the replies going out for
> the initial ARP as well from inside the instance. The ARP never seems to
> make it into OVS as a flow. Is Quantum missing a configuration for a flow
> somewhere or is there something more I should look for? Does it work for
> anyone else or did I hit a bug?
>
> jason
>
> ----- Original Message -----
> From: "Dan Wendlandt" <dan at nicira.com>
> To: "Jason Ford" <jason at chatinara.com>
> Cc: openstack at lists.launchpad.net
> Sent: Tuesday, October 23, 2012 12:55:42 AM
> Subject: Re: [Openstack] quantum: two ips one vif
>
> by default, quantum will give a port one IP address from any v4 subnet
> associated with the network, and one from any v6 subnet associated
> with the subnet. However, you can create your own port with multiple
> subnets, and then boot a VM with that port. You can create a port
> with IPs from different subnets by using the --fixed-ip option twice,
> each time specifying a different subnet. See example below.
>
> Dan
>
>
> nicira at com-dev:~/devstack$ quantum subnet-list -c id -c network_id -c cidr
>
> +-------------+--------------------------------------+--------------------------------------+
> | cidr | id | network_id
> |
>
> +-------------+--------------------------------------+--------------------------------------+
> | 10.0.0.0/16 | a26f5605-8400-45ef-82cc-ec62fae37a33 |
> 9f930f56-ca54-41b9-bb68-688f009e2f75 |
> | 20.0.0.0/24 | f1278823-d6e3-4237-ad55-7f2fe286994c |
> 9f930f56-ca54-41b9-bb68-688f009e2f75 |
>
> +-------------+--------------------------------------+--------------------------------------+
> nicira at com-dev:~/devstack$ quantum port-create --fixed-ip
> subnet_id=a26f5605-8400-45ef-82cc-ec62fae37a33 --fixed-ip
> subnet_id=f1278823-d6e3-4237-ad55-7f2fe286994c
> 9f930f56-ca54-41b9-bb68-688f009e2f75
> Created a new port:
>
> +----------------+---------------------------------------------------------------------------------+
> | Field | Value
> |
>
> +----------------+---------------------------------------------------------------------------------+
> | admin_state_up | True
> |
> | device_id |
> |
> | device_owner |
> |
> | fixed_ips | {"subnet_id":
> "a26f5605-8400-45ef-82cc-ec62fae37a33", "ip_address": "10.0.0.3"} |
> | | {"subnet_id":
> "f1278823-d6e3-4237-ad55-7f2fe286994c", "ip_address": "20.0.0.3"} |
> | id | 79f20e6f-7b95-44b0-90e6-bd0296c7aa54
> |
> | mac_address | fa:16:3e:05:69:ba
> |
> | name |
> |
> | network_id | 9f930f56-ca54-41b9-bb68-688f009e2f75
> |
> | status | ACTIVE
> |
> | tenant_id | b02686b6c8c44c75bd7459710ed81edb
> |
>
> +----------------+---------------------------------------------------------------------------------+
> nicira at com-dev:~/devstack$ nova image-list
>
> +--------------------------------------+---------------------------------+--------+--------+
> | ID | Name
> | Status | Server |
>
> +--------------------------------------+---------------------------------+--------+--------+
> | 5809a3fe-2c27-4d87-80c0-963ec1f92d0f | cirros-0.3.0-x86_64-uec
> | ACTIVE | |
> | e9a03bac-1e46-4d98-973d-2efc0f10d4d2 |
> cirros-0.3.0-x86_64-uec-kernel | ACTIVE | |
> | 28ad71a6-b120-4d75-a8cc-1aabe248edfa |
> cirros-0.3.0-x86_64-uec-ramdisk | ACTIVE | |
>
> +--------------------------------------+---------------------------------+--------+--------+
> nicira at com-dev:~/devstack$ nova boot --image
> 5809a3fe-2c27-4d87-80c0-963ec1f92d0f --flavor 1 --nic
> port-id=79f20e6f-7b95-44b0-90e6-bd0296c7aa54 vm1
> +------------------------+--------------------------------------+
> | Property | Value |
> +------------------------+--------------------------------------+
> | OS-DCF:diskConfig | MANUAL |
> | OS-EXT-STS:power_state | 0 |
> | OS-EXT-STS:task_state | scheduling |
> | OS-EXT-STS:vm_state | building |
> | accessIPv4 | |
> | accessIPv6 | |
> | adminPass | 68GLMZmLrsJ5 |
> | config_drive | |
> | created | 2012-10-23T04:52:02Z |
> | flavor | m1.tiny |
> | hostId | |
> | id | 10afbdc8-1ded-4a90-bbe4-0b245776a408 |
> | image | cirros-0.3.0-x86_64-uec |
> | key_name | None |
> | metadata | {} |
> | name | vm1 |
> | progress | 0 |
> | security_groups | [{u'name': u'default'}] |
> | status | BUILD |
> | tenant_id | b02686b6c8c44c75bd7459710ed81edb |
> | updated | 2012-10-23T04:52:02Z |
> | user_id | 6596c5e8318047d2859ee1bc5aef5c26 |
> +------------------------+--------------------------------------+
> nicira at com-dev:~/devstack$ nova list
>
> +--------------------------------------+------+--------+-------------------------+
> | ID | Name | Status | Networks
> |
>
> +--------------------------------------+------+--------+-------------------------+
> | 10afbdc8-1ded-4a90-bbe4-0b245776a408 | vm1 | BUILD |
> net1=10.0.0.3, 20.0.0.3 |
>
> +--------------------------------------+------+--------+-------------------------+
>
>
>
>
>
>
> On Mon, Oct 22, 2012 at 7:09 PM, Jason Ford <jason at chatinara.com> wrote:
> > Stackers,
> >
> > I am testing out quantum with vlans using a hardware based firewall as a
> gateway. I am using openvswitch with the quantum openvswitch agent and
> nova-compute running on the compute node. I also have one management node
> with everything else on it.
> >
> > I am able to spin up a vm and assign an ip address via dhcp to my
> instance. It shows up in quantum port-list as well as quantum net-list and
> is able to route traffic in and out of my vlan'd network. I have a
> requirement to assign another fixed IP (not floating) from a new vlan to
> the same virtual interface on the instance. When I create another subnet in
> quantum, that works. How do I assign an ip address from the new subnet to
> the same openvswitch port via quantum?
> >
> > jason
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~openstack
> > Post to : openstack at lists.launchpad.net
> > Unsubscribe : https://launchpad.net/~openstack
> > More help : https://help.launchpad.net/ListHelp
>
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Dan Wendlandt
> Nicira, Inc: www.nicira.com
> twitter: danwendlandt
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to : openstack at lists.launchpad.net
> Unsubscribe : https://launchpad.net/~openstack
> More help : https://help.launchpad.net/ListHelp
>
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